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User manual - Schneider Electric

1. TM16D TM16G TM25D TM25G amp A 10000 g A 10000 5 H 5 000 2 000 1000 500 200 100 50 20 10 5 t s t s 2 1 5 2 A 05 02 01 005 002 001 iB WS 4 2 345 7 10 20 30 50 70100 200300 A5 d 2 3 4 5 T 10 20 30 50 70100 200300 p Se i ie Reflex tripping TM32D TM40D TM40G TM50D TM63D TM63G E 10 000 g 10 000 amp 5000 amp 5000 2000 2 000 1000 1 000 500 500 200 200 100 100 50 50 20 20 10 10 5 5 t s t s 2 2 1 TM40D Im 12 x In 1 s T s 2 TM32D Im 12 5 x In 2 4 A 05 05 02 02 01 01 005 005 002 002 001 001 5 7 1 2 9495 7 10 20 30 5070100 200300 Bit 2 345 T 10 20 30 50 70100 200300 iI HAAS K le em iuqm 73 Reflex tripping 172 LV434104 06 2008 Tripping and Limitation Curves Tripping Curves TM magnetic trip units cont TM80D TM100D TM125D TM160D B 4 10000 10 000 5 t s t s 571 2 345 7 10 20 30 5070100 200300 571 2 345 7 10 20 30 5070100 200300 He Vr E Reflex tripping 537 1 2 345 7 10 20 30 5070100 200300 Vir Reflex tripping LV434104 06 2008 173 Tripping and Limitation Curves Tripping Curv
2. Micrologic E Ener ergy Mode Description of Screens Unit Down Arrows v Bou sf Readout as instantaneous rms value of the A The down arrow indicates 3 phase currents I1 A I2 B and I3 C the conductor phase Ground fault current Micrologic 6 lg neutral or ground corresponding to the Neutral current IN 4 pole or 3 pole with ENCT A value read option Readout as instantaneous rms value of the V The down arrows indicate Phase to phase voltages V12 V23 and V31 the conductors phases or Phase to neutral voltages V1N V2N and V3N neutral corresponding to 4 pole or 3 pole with ENVT option the value read Readout of the total active power Ptot kW The down arrows indicate Readout of the total apparent power Stot kVA the 3 phase conductors Readout of the total reactive power Qtot kvar v logs Readout and resetting of the active energy meter Ep M Reset Ok Readout and resetting of the apparent energy meter Es kVAh MVAh Readout and resetting of the reactive energy meter Eq kvarh Mvarh v Bow Readout of the phase rotation v lou di a and resetting of the A a arrow a Max Reset Ok Maximum li MAX for the 3 phase currents the a uctor ib ase Maximum ground fault current Micrologic 6 lg meu tal OF groun yon which the maximum was Maximum IN MAX for the neutral current A measured 4 pole or 3 pole with ENCT option Readout and resetting of the V The down ar
3. Connection and operation of the ZSI function can be tested using the LTU software LV434104 06 2008 53 The Protection Function 2 2 Motor Feeder Application At a Glance Aim This section describes the protection characteristics of the Micrologic 6 E M trip unit dedicated to protecting motor feeders What s in this This section contains the following topics Section Topic Pags Protection for Motor Feeders 55 Long Time Protection 59 Short Time Protection 62 Instantaneous Protection 63 Ground Fault Protection 64 Phase Unbalance Protection 66 Jam Motor Protection 68 Underload Motor Protection 69 Long Start Motor Protection 70 54 LV434104 06 2008 The Protection Function Protection for Motor Feeders Presentation Description Operating States Startup Micrologic 6 E M trip units on Compact NSX circuit breakers Provide protection for direct on line motor feeders direct on line starting is the most widely used type of motor feeder Integrate the basic protections overload short circuit and phase unbalance for the motor feeder and additional protections and or specific options for motor applications Allow protection and coordination of the motor feeder components that comply with the requirements of standard IEC 60947 2 and IEC 60947 4 1 see the Compact NSX circuit breakers User manual Compact
4. At a Glance Aim This chapter describes the alarms for Micrologic 5 6 and 6 E M trip units What s in this This chapter contains the following topics 2 Chapter Topic Page Alarms Associated with Measurements 108 Alarms on a Trip Failure and Maintenance Event 111 Detailed Tables of Alarms 112 Operation of SDx and SDTAM Module Outputs Assigned to Alarms 116 LV434104 06 2008 107 Alarms Alarms Associated with Measurements Presentation Alarm Setup Alarm Priority Level Alarm Activation Conditions Micrologic 5 and 6 trip units are used to monitor measurements by means of 1 or 2 pre alarms depending on the type of trip unit assigned to e Long time protection PAL Ir for the Micrologic 5 trip unit e Long time protection PAL Ir and ground fault protection PAL Ig for the Micrologic 6 trip unit By default these alarms are active 10 alarms defined by the user as required The user can assign each of these alarms to a measurement By default these alarms are not active All the alarms associated with measurements can be accessed Via the communication network On the front display module FDM121 see FDM121 Switchboard Display Unit p 143 The alarms associated with measurements can be assigned to an SDx module output see Setting the SDx Module Output Parameters p 128 User defined alarms can be selected and their parameters set using the RSU soft
5. 000 cee cence eee eee aes 176 Compact NSX400 to 630 Distribution Protection 00 ccc eee 178 Compact NSX400 to 630 Motor Feeder Protection 0 000 c cece eee eee eee 180 Compact NSX100 to 630 Reflex Tripping 0 0 0 eect RII 182 Compact NSX100 to 630 Limitation Curves 0 0 0 0 ect teeeee 183 LV434104 06 2008 Safety Information Zz Important Information NOTICE PLEASE NOTE Read these instructions carefully and look at the equipment to become familiar with the device before trying to install operate or maintain it The following special messages may appear throughout this documentation or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure The addition of this symbol to a Danger or Warning safety label indicates that an electrical hazard A exists which will result in personal injury if the instructions are not followed Obey all safety messages that follow this symbol to avoid possible injury or death This is the safety alert symbol It is used to alert you to potential personal injury hazards A DANGER DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury A WARNING WARNING indicates a potentially hazardous situation which if not avoided can result in death serious injury or equipment damage A CA
6. 3 Pole Circuit The ENVT option must be declared using the RSU software see Metering Setup p 124 and actually Breaker used Distributed Neutral pac E z y T ee Tre P uod i Note Declaration of the ENCT option alone does not result in correct calculation of the powers Itis absolutely essential to connect the wire from the ENVT option to the neutral conductor E LV434104 06 2008 81 The Metering Function Power Sign and Operating Quadrant Power Supply From the Top or Underside of the Device By definition the active powers are Signed when they are consumed by the user i e when the device is acting as a receiver Signed when they are supplied by the user i e when the device is acting as a generator By definition the reactive powers are Signed with the same sign as the active energies and powers when the current lags behind the voltage i e when the device is inductive lagging Signed with the opposite sign to the active energies and powers when the current is ahead of the voltage i e when the device is capacitive leading These definitions therefore determine 4 operating quadrants Q1 Q2 Q3 and Q4 Q Q2 A Q1 P 0 Q gt 0 P gt 0 Q gt 0 Capacitive ji Inductive Lead T Lag Inductive S _ Capacitive Lag Bus Lead P 0 Q 0 P 0 Q lt 0 Q3 Q4 Note The power values are Signed on the communication for example when reading the front display mod
7. Compatibility of trip units ensured by mechanical cap Torque limited screw ensures safe mounting see drawing below The safety of the swapping process eliminates the risk of incorrect tightening or oversights The simplicity of the swapping process means it is easy to make the necessary adjustments as operation and maintenance processes evolve Note When the trip unit has been mounted by this means the trip unit can still be removed the screw head is accessible LV434104 06 2008 13 Using Micrologic Trip Units Sealing the The transparent cover on Micrologic trip units can be sealed to prevent modification of the protection Protection settings and access to the test port Z On Micrologic 5 and 6 trip units it is possible to use the keypad with the cover sealed to read the protection settings and measurements 14 LV434104 06 2008 Using Micrologic Trip Units Description of the Micrologic 5 and 6 Trip Units Presentation of the Front Face Indication LEDs Test Port The front face of Micrologic 5 and 6 trip units contains 1 Indication LEDs 2 A test port 3 A set of 2 dials and 1 microswitch 4 An LCD display 5 A keypad Front face of a Micrologic 5 2 A trip unit for a 3 pole circuit breaker 1 2 3 4 5 215A E 290 2105 Os wo x Ir tr isd tsd li xln gt o o c v Soo Indication LEDs on the fron
8. The quadratic demand value model represents the conductor heat rise thermal image The heat rise created by the current I t over the time interval T is identical to that created by a constant current Ith over the same interval This current Ith represents the thermal effect of the current I t over the interval T If the period T is infinite the current I th represents the thermal image of the current Calculation of the demand value according to the thermal model must be always be performed on a sliding metering window Note The thermal demand value is similar to an rms value Note Old measuring apparatus naturally display a type of thermal response for calculating demand values The arithmetic demand value model represents the consumption of electricity and the associated cost Calculation of the demand value according to the arithmetic model can be performed on any type of metering window The Micrologic E trip unit indicates the maximum value peak reached over a defined period for The demand values of the phase and neutral currents The demand values of the total powers active apparent and reactive The demand values are organized into 2 groups see Heal Time Measurements p 75 Current demand values Power demand values The peaks in a group can be reset for the group via the communication option or on the front display module FDM121 see Services Menu p 159 L
9. Code 16384 5 Nov 2007 A NOOA O N 02 31 03 61 AM eo ESC vw Screen number Total number of screens in the alarm history Alarm name Alarm code Event date Event type 1 Event time in hours minutes seconds and milliseconds Navigation keys ONO RWND 1 occurrence A or completion XX of the alarm 158 LV434104 06 2008 Operating Assistance Services Menu Presentation Reset Sub Menu The Services menu provides access to the Reset energy meters and measurement minimum and maximum values mode Front display module FDM121 contrast and brightness setting Maintenance indicators operation counters load profile etc Intelligent functional unit product identification information Language selection for the front display module FDM121 screens The Reset sub menu can be used to reset the Energy meters the energy meters are reset simultaneously on the active energy Ep reactive energy Eq and apparent energy Es meters Minimum and maximum measurement values all the minimum and maximum measurement values in a group are reset simultaneously see Real Time Measurements p 75 For the group of currents resetting is performed simultaneously on all the maximum and minimum values of the Phase currents and neutral current if present Unbalance currents Demand current LV434104 06 2008 159 Operating Assistance Navigation The table
10. lise m 95 Measurement Accuracy s ru RR RE RR FREE bata A eGo libata al ale RR ROTE BD on 96 Micrologic A Real Time Measurements lssleleeee 97 Micrologic E Real Time Measurements 0 00 0 cece eet ent eae 98 Micrologic E Demand Value Measurements 104 Micrologic E Energy Metering lille IRI 105 Chapter 4 Alarms osuere EREFyEYXRERYO E ER ERIEEEM RES 107 Alarms Associated with Measurements 00 00 nh 108 Alarms on a Trip Failure and Maintenance Event 00 0c cece eee eee 111 Detailed Tables of Alarms 4 scc ure ma co de ee ae Sle dos aly Emme ua be dran bas 112 Operation of SDx and SDTAM Module Outputs Assigned to Alarms lisse 116 LV434104 06 2008 3 Chapter 5 Chapter 6 6 1 6 2 6 3 6 4 Appendices Appendix A The RSU Parameter Setting Software 0 00 e eee eee eee eee 119 Parameter Setting Using the RSU Software 0 0c cece eens 120 Setting the Protection Parameters 122 Meteririg Setup eov erbe cidcm hada hx face BEE ona e ihe Sentara s phun 124 Alarm Set p s sscoseci v rrr RR En ME ER M RU KE e eee 126 Setting the SDx Module Output Parameters 0 0 000 cece eee eee 128 Operating Assistance 00 0c eee eee eee eee nnn 131 Micrologic Trip Unit Indicators 20 RII 132 Ata Glance REDE 132 Local LED Indication rb Ere em DER gee de eRe ee R oy Ree hats eee eee 133 Indication on the Microlog
11. History and Time Stamped Information History Time Stamped Information Micrologic trip units generate 3 types of history History of alarms associated with measurements the last 10 alarms are recorded History of trips the last 18 trips are recorded History of maintenance operations the last 10 operations are recorded Time stamped information informs the user of all the dates relating to important information such as previous protection settings and minimum maximum current voltage and network frequency values The table of time stamped information describes The previous protection configuration parameters and corresponding dates The minimum and maximum voltage measurement values and corresponding dates The maximum current measurement values and corresponding dates The minimum and maximum network frequencies and corresponding dates The time when the minimum and maximum values were reset is also available LV434104 06 2008 167 Operating Assistance Maintenance Indicators BSCM Module The counters embedded in the BSCM module generate information relating to the number of volt free Counters contact operations These volt free contacts qualify The number of open close operations OF contact and open on a fault operations SD and SDE contacts on the Compact NSX circuit breaker The number of close open and reset operations on the motor mechanism Micrologic Trip T
12. 3 Pole Circuit Breaker 4 Pole Circuit Breaker The calculation algorithm depends on the presence or absence of voltage metering on the neutral conductor 4 Pole or 3 Pole with ENVT 3 Wattmeter Method 3 Pole Without ENVT 2 Wattmeter Method unit measures the power by taking account of 3 single phase loads downstream When there is voltage metering on the neutral 4 pole or 3 pole circuit breaker with ENVT option the Micrologic E trip When there is no voltage metering on the neutral 3 pole circuit breaker the Micrologic E trip unit measures the power Using the current from two phases l1 and I3 and composite voltages from each of these two phases in relation to the third V12 and V32 Supposing by definition that the current in the neutral conductor is zero gt gt gt 414i 0 The calculated power Ptot equals The calculated power Ptot equals PW1 PW2 Vanly cos V4w l4 Vowl2cos Vaw 12 Vawl3c08 V3y I3 V42l4 cos V45 14 V4514005 V35 13 The table below lists the metering options Method 3 Pole Circuit Breaker Non Distributed Neutral 3 Pole Circuit Breaker Distributed Neutral 3 Pole Circuit Breaker Distributed Neutral ENVT option 4 Pole Circuit Breaker 2 wattmeters X X 1 3 wattmeters X 1 The measurement is incorrect once there is current circulating in the neutral
13. In the voltage range 70 850 V In the cos range 1 0 5 and 0 5 1 Measurement Unit Measurement Accuracy Accuracy Range Range Demand value of the total active power Ptot kW 0 3000 kw 2 3 3000 kW Total active power peak value Ptot Demand value of the total reactive power Qtot kvar 0 3000 kvar 2 3 3000 kvar Total reactive power peak value Qtot Demand value of the total apparent power Stot kVA 0 3000 kVA 296 3 3000 kVA Total apparent power peak value Stot 104 LV434104 06 2008 The Metering Function Micrologic E Energy Metering Energy Meters The accuracy range is indicated for Micrologic trip unit operation In the current range 0 1 1 2 In In the voltage range 70 850 V In the cos range 1 0 5 and 0 5 1 Measurement Unit Measurement Range Accuracy Accuracy Range Active energy measurements Ep Epln supplied and EpOut consumed kWh then MWh 1 kWh 1000 TWh 2 1 kWh 1000 TWh Reactive energy measurements Eq Eqin supplied and EqOut consumed kvarh then Mvarh 1 kvarh 1000 Tvarh 2 1 kvarh 1000 Tvarh Apparent energy measurement Es kVAh then MVAh 1 kVAh 1000 TVAh 2 1 kVAh 1000 TVAh LV434104 06 2008 105 The Metering Function 106 LV434104 06 2008 Alarms
14. C Power supply voltage 24 VDC 19 2 26 4 V DC Consumption Typical 21 mA 24 VDC at 20 C Maximum 30 mA 19 2 VDC at 60 C For more information on the general characteristics in particular mounting and connection in a switchboard of the front display module FDM121 refer to the ULP system User manual Alarm Indicator anu LED Description The orange alarm indicator LED is Normally off Blinking when a high priority alarm level 3 occurs The LED stops blinking after the Clear validation key is pressed Steady ON when a medium priority alarm level 2 occurs 0 The LED goes off after the alarm history has been viewed For more information see Alarms Menu p 157 LV434104 06 2008 147 Operating Assistance Screen The screen has 3 zones 1 Identification zone 2 Information zone 3 Navigation zone The screen displays the information needed to operate the ULP modules The identification zone identifies the measurements displayed and notifies the user about the tripping of an alarm The information zone displays specific data on the screen measurements alarms settings etc The icons in the navigation zone indicate which navigation options are available via the navigation keys depending on the menu displayed Screen The front display module FDM121 has white backlighting Backlighting The backlighting comes on f
15. Powers Only the maximum values are displayed but both the maximum and minimum values are reset LV434104 06 2008 77 The Metering Function Calculating Demand Values Micrologic E Presentation Definition Calculation Principle Metering Window Fixed Metering Window Sliding Metering Window The Micrologic E trip unit calculates The demand values of the phase and neutral currents The demand values of the total active reactive and apparent powers For each demand value the maximum demand value peak is stored in the memory The demand values are updated according to the type of window The demand value of a quantity can be called the Average mean value Demand Demand value over an interval Example Current demand or current demand value Power demand or power demand value The demand value should not be confused with the mean which is an instantaneous value Example Mean current or average current lavg I1 12 I3 8 The demand value of a quantity over a defined interval metering window is calculated according to 2 different models Arithmetic demand value for the powers Quadratic demand value thermal image for the currents The specified time interval T is chosen according to 3 types of metering window Fixed window e Sliding window Synchronized window The duration of the fixed metering window can be specified from 5
16. 0 5 0 3 0 6 0 3 0 7 0 3 0 8 0 3 0 9 0 3 1 0 3 1 the keypad OFF Rating gt 50 A Type of Setting Value or Setting Range x In Preset by a dial 0 20 0 30 0 40 0 50 0 60 0 70 0 80 1 OFF Setting range on 0 20 0 2 0 3 0 2 0 4 0 2 0 5 0 2 0 6 0 2 0 7 0 2 0 8 02 1 0 2 1 the keypad OFF The accuracy range is 10 The tg time delay setting value is expressed in seconds The non tripping and breaking times are expressed in milliseconds The default tg time delay setting is 0 s Table of tg setting values expressed in second s and the associated non tripping and breaking times expressed in milliseconds ms Parameter Value tg s 0 0 1 0 2 0 3 0 4 Non tripping time ms 20 80 140 230 350 Maximum breaking time ms 80 140 200 320 500 The ground fault protection test can be performed on the keypad of the Micrologic trip unit see Ground Fault Protection Test Micrologic 6 p 21 This test can be used to check the trip unit s electronic tripping function LV434104 06 2008 65 The Protection Function Phase Unbalance Protection Presentation Unbalances of the motor phase currents lead to significant heat rise and braking torques that can cause premature deterioration of the motor These effects are amplified during startup protection must be almost immediate Description
17. 6 1 5 7 1 5 8 1 5 10 Step 0 5 Ir 1 For Micrologic 6 trip units the setting range value on the keypad is 1 5 10 Ir The accuracy range is 10 The table below indicates the setting values for the tsd time delay with the It OFF ON option expressed in second s and the associated non tripping and breaking times expressed in milliseconds ms Parameter Value tsd with Pt OFF s 0 0 1 0 2 0 3 0 4 tsd with lt ON s 0 1 0 2 0 3 0 4 Non tripping time ms 20 80 140 230 350 Maximum breaking time ms 80 140 200 320 500 The default tsd time delay setting value is 0 s with I t OFF The l t inverse time curve function is used to improve circuit breaker discrimination It is particularly necessary when a protection device using inverse time only for example a fuse protection device is installed downstream Example The figures below illustrate an example of discrimination between a Compact NSX630 upstream and a gG 250 A fuse downstream calculation performed by the Ecodial software let OFF It ON t s t s A NS800N Micrologic 5 0 A 800 A NS800N Micrologic 5 0 A 800A gG 250A gG 250A gt A gt 1 A Total discrimination between the protections is provided by using the 1 t ON function on the short time protection 44 LV434104 06 2008 The Protection Function Instan
18. Measurement Range Accuracy Accuracy Range Phase 11 I2 I3 and neutral IN current measurement 1 Maximum current values of phases l1 MAX I2 MAX I3 MAX and the neutral IN MAX 1 Maximum value MAXMAX of the MAX of the phase currents Minimum current values of phases 11 MIN 12 MIN I3 MIN and neutral IN MIN 1 Average current lavg measurements Maximum average current value lavg MAX Minimum average current value lavg MIN Minimum value MINMIN of the MIN of the phase currents 0 20 In 1 0 2 1 2 In Micrologic 6 Ground fault current measurement Maximum minimum value of the ground fault current lg 0 600 1 IN with 4 pole or 3 pole trip unit with ENCT option Current The accuracy range is indicated for Micrologic trip unit operation in the current range 0 2 In 1 2 In Unbalance Metering Measurement Unit Measurement Accuracy Accuracy Range Range Current phase unbalance measurements I1unbal I2unbal lavg 100 100 2 100 100 I3unbal Maximum values of current phase unbalances Hunbal MAX I2unbal MAX I3unbal MAX Maximum value MAXMAX of the MAX of the phase unbalances Note The unbalance values are signed relative values The unbalance maximum values MAX are not signed absolute values 98 LV434104 06 2008 The Metering Function Voltage Metering
19. Over T image motor 125 0 2 10 5 In 1 3000 s In 60s 15s Micrologic 6 E M trip unit Under T image motor 126 0 2 10 5 In 1 3000 s In 60s 15s Micrologic 6 E M trip unit Over l1 Peak Demand 141 0 2 10 5 In 1 3000 s In 60s 15s Over I2 Peak Demand 142 0 2 10 5 In 1 3000 s In 60s 15s Over I3 Peak Demand 143 0 2 10 5 In 1 3000 s In 60s 15s Over IN Peak Demand 144 0 2 10 5 In 1 3000 s In 60s 15s Lead 145 0 0 1 3000 s 0 40s 10s Lag 146 11 1 1 3000 s 1 40 s 10s Quadrant 1 147 14 1 3000 s 1 40 s 10s 1 The type of alarms associated with monitoring the cos o and PF indicators must always be consistent with the sign convention IEEE or IEC for the PF indicator 114 LV434104 06 2008 Alarms Alarms on a Trip Event Alarms on a Failure Event Alarms on a Maintenance Event Label Code Setting Range Default Setting Thresholds Pick Up Time Delay Thresholds Time Delay or Drop Out Pick Up Drop Out Quadrant 2 148 2 2 1 3000 s 2 40s 10s Quadrant 3 149 3 3 1 3000 s 3 40s 10s Quadrant 4 150 4 4 1 3000 s 4 40s 10s 1 The type of alarms associated with monitoring the cos and PF indicators must always be consistent with the sign convention IEEE or IEC for the PF indicator Label Code SDx Output Priority L
20. Parameter i e when the padlock is locked Readout Scrolling is cyclical The up arrow 1 indicates the selected protection parameter Example Ir pick up selected F tr sd tsd liim 1 For the neutral protection parameters the up arrow is replaced by the down arrow which points to N Example of Readout of the setting values for the long time protection Ir pick up tr time delay and the short time Protection protection Isd pick up Parameter Readout Step Action Using Display 1 Select the Protection parameter D readout mode main screen displayed The long time protection Ir pick up setting value is displayed in amps NAP OENCNNE Ir tr isd tsd li xin 2 Select the long time protection tr c time delay The long time protection tr time delay setting value is displayed in seconds Ir tr isd tsd li xln N WA 2B 3C 3 Select the short time protection Isd O l pick up The short time protection Isd pick up setting value is displayed in amps r tr isd tsd li xin N 1A 2B 3C Neutral The Neutral declaration readout mode is dedicated to this parameter navigation is therefore limited to Declaration the GED key Readout 3 Pole Trip Unit Step Action Using Display 1 Select the Neutral declaration qo readout mode The neutral declaration value is displayed N Neutral protection active 3 RABE pole trip unit with ENCT option declared no
21. Testing the ZSI Function If a number of circuit breakers are installed upstream as with multi source distribution the same principles apply A downstream circuit breaker must be connected to all the circuit breakers installed directly upstream as follows All the commons outputs Z1 inputs Z2 are connected to one another Output Z2 is connected simultaneously to inputs Z3 and or Z4 and or Z5 of all the trip units on the circuit breakers installed upstream Note Management of this configuration does not require any additional relays to ensure the ZSI function is controlled according to the sources in service The table below indicates the characteristics of the inter device pilot wire connection Characteristics Values Impedance 2 7 Q per 300 m Maximum length 300 m Type of cable Shielded twisted Belden 8441 or equivalent Permissible conductor cross section 0 4 2 5 mm Interconnection limit on inputs Z3 Z4 and Z5 to 15 devices downstream devices Interconnection limit on outputs Z1 and Z2 to upstream 5 devices devices Note When using the Compact NSX ZSI function with circuit breakers in the Masterpact and Compact NS ranges an RC filter reference LV434212 must be added by a Masterpact or Compact NS circuit breaker see Compact NSX 100 630 A Catalogue The figure below shows the connection of the LV434212 filter Masterpact LV434212
22. Voltage Unbalance Metering Measurement Unit Measurement Accuracy Accuracy Range Range Phase to phase V12 V23 V31 and phase to neutral V1N V 0 850 V 0 5 70 850 V V2N V3N voltage measurements 1 Maximum values of phase to phase voltages V12 MAX L L V23 MAX L L V31 MAX L L and phase to neutral voltages V1N MAX L N V2N MAX L N V3N MAX L N 1 Maximum value of the MAX phase to phase voltages V12 V23 V31 Minimum values of phase to phase voltages V12 MIN L L V23 MIN L L V31 MIN L L and phase to neutral voltages V1N MIN L N V2N MIN L N V3N MIN L N 1 Minimum value of the MIN phase to phase voltages V12 V23 V31 Average voltage measurements Vavg L L and Vavg L N Maximum value of average values Vavg MAX L L and Vavg MAX L N Minimum value of average values Vavg MIN L L and Vavg MIN L N 1 V1N V2N V3N with 4 pole or 3 pole trip unit with ENVT option The accuracy range is indicated for Micrologic trip unit operation in the voltage range 70 850 V V2Nunb L N V3Nunb L N unbalance measurements 1 Maximum values of phase to phase voltage unbalances V12unb MAX L L V23unb MAX L L V31unb MAX L L and phase to neutral voltage unbalances V1Nunb MAX L L V2Nunb MAX L L V3Nunb MAX L L 1 Maximum values MAXMAX of the MAX of the phase to phase and phase to neutral voltage unbalances 1 Measurement Unit Measurement Accuracy Accuracy Range Ra
23. setting value the protection t ong time delay is actuated Long start motor protection compares the value of the average motor current lavg with the setting value of the protection l ong pick up By default long start motor protection is not active After parameter setting long start motor protection is Active during startup Not active in steady state On starting the average motor current lavg overruns the long start motor protection l ong pick up The protection remains active as long as the average motor current lavg has not fallen below the l ong pick up l Diagram I l Diagram II llong 10 Ir E gt l tlon A IB a 2 1 Motor current 2 Activation of long start motor protection tlong time delay White Protection not active Green Protection active The curve can evolve in one of 2 ways Diagram I The average motor current lavg has not fallen below the l ong pick up before the end of the t ong time delay starting with too big a load Long start motor protection trips e A Activation of protection time delay 10 of Ir pick up is exceeded e B Protection tripped at the end of the time delay Diagram II The average motor current lavg falls below the l ong pick up before the end of the tlong time delay correct starting Long start motor protection does not trip e A Activation of protection time delay 10 of Ir pick up is exceeded e D Deactivation of protection 70 L
24. 3C 2 Select the peak demand to be reset map Ir tr isd tsd li xin N WA 2B 3C 3 Validate the GEGE c Ir tr isd tsd li xin The OK pictogram blinks E EC 4 Confirm the reset c TENES The confirmation OK is displayed for g OK N 1A 2B 3C The ground fault protection test can be performed with the padlock locked amp or unlocked w Step Action Using Display 1 Select the Instantaneous D tr e sd li xin measurement readout mode the most heavily loaded phase is displayed N 1 A 2 B 3 C 2 Select the ground fault current c Ir tr Isd tsd li Ig tg measurement the value is displayed as a of the lg setting N 1 A 2 B 3 C 3 Access the ground fault protection c IEEASEGUINSU test function by pressing OK The tESt pictogram appears and the OK pictogram blinks N 1 A 2 B 3 C 4 Prompt the ground fault protection c PUES test by pressing OK The circuit breaker trips The ground fault protection trip screen is displayed N 4 A 2 B 3 C 5 Acknowledge the ground fault trip ok 7 Pee ED screen by pressing OK The Reset OK pictogram blinks 2 N oreet i 6 Confirm acknowledgment by pressing OK again The confirmation OK is displayed for 2s tr Isd tsd li xln N VA 2B 3C LV434104 06 2008 21 Using Micrologic Trip Units Protection A protection parameter is selected using the gt key This selection is only possible in Readout mode
25. A 2 3 Sections Screen 2 Load profile displays 4 circuit breaker operating hours counters for 4 loading 0 49 610 H Pressing the Y key switches to screen 3 50 79 15H Pressing the ESC key returns to the Maintenance info sub menu 80 89 360 H 90 100 3H Screen 3 Counters displays the values of the WNTIEEN 33 OF operation counter SDE fault counter Operations 17 Close command counter communicating motor mechanism Trip SDE 0 Pressing the ESC key returns to the Maintenance info sub menu Close command 5 162 LV434104 06 2008 Operating Assistance 6 3 RCU Operating Software Description of the RCU Software Presentation List of Recognized Devices Example of Network Architecture The RCU Remote Control Utility software is a help utility for starting an electrical installation including devices connected to the communication network The RCU software installed on a standard PC can be used to Validate communication Monitor the electrical equipment remotely The RCU software takes account of Micrologic trip units on Compact NSX and Masterpact NT NW circuit breakers PM200 300 500 700 800 and PM9C power meters Advantys OTB interface modules The figure below shows an example of communication network architecture consisting of the communicating devices below A Masterpact NW20 circuit break
26. IEC convention but multiplied by the inverse of the sign for the reactive power Q PF re x sign Q and cos ane x sign Q The figures below define the sign for the power factor PF and the cos in all 4 quadrants Q1 Q2 Q3 and Q4 for both conventions IEC Convention Operation in all 4 quadrants Q1 Q2 Q3 Q4 Values of cos o in receiver operation Q1 Q4 Q2 Ae Q1 P 0 Q 0 PF 0 P gt 0 Q 0 PF gt 0 Capacitive L Inductive Lead T E Lag Inductive mm Capacitive P Lag E T Lead P lt 0 Q lt 0 PF 0 P gt 0 Q lt 0 PF gt 0 Q3 Q4 IEEE Convention Operation in all 4 quadrants Q1 Q2 Q3 Q4 Values of cos in receiver mode Q1 Q4 Q2 ha Q1 0 P 0 Q gt 0 PF gt 0 P 0 Q gt 0 PF lt 0 Capacitive L Inductive Lead T E Lag Inductive E Capacitive P Lag dq Lead P 0 Q 0 PF lt 0 P gt 0 Q 0 PF gt 0 Q3 Q4 T Note For a device a part of an installation which is only a receiver or generator the advantage of the IEEE convention is that it adds the type of reactive component to the PF and cos indicators Lead Positive sign for the PF and cos q indicators Lag Negative sign for the PF and cos q indicators 92 LV434104 06 2008 The Metering Function Managing the Power Factor PF and Cos q Minimum and Maximum Values Monitoring the Cos q and Power Factor PF Indicators Managing the PF and cos q indicators consists of Defining critical situations Implementing monitoring of the i
27. Ir 1 For the 40 A rating the IN Ir 2 0 5 parameter setting is not available The setting values of the neutral long time and short time protection time delays are identical to those for the phases The table below details the setting values of the neutral protection pick ups set to OSN according to the phase protection pick up Ir setting and the In rating of the 4 pole trip unit Ir In Values Long Time Pick Up Value Ir IN Short Time Pick Up Value Isd IN Ir In 0 63 1 6 x Ir 1 6 x Isd 0 63 Ir In 1 In In xIsd Ir Selection of the ENCT Option The ENCT option is an external neutral CT for a 3 pole trip unit the Micrologic trip unit and or the need for OSN protection The table below indicates the reference for the ENCT option to be installed according to the In rating of In Rating Neutral Protection Limited to In OSN Protection In 40A LV429521 LV429521 100 LV429521 LV429521 160 LV430563 LV430563 250 LV430563 LV432575 400 LV432575 LV432575 630 LV432575 No 1 1 For the 630 A rating the OSN function is limited to In 2 630 A Using the ENCT Option Step Action 1 Connect the neutral conductor to the ENCT option primary terminals H1 H2 Remove if existing the jumper between terminals T1 and T2 of the Micrologic trip unit Connect the ENCT option secondary terminals T1 T2 to t
28. MIN value of the current for each phase reached for the current period 1 2 The Micrologic E trip unit determines in real time the maximum MAX and minimum MIN value reached by the following electrical quantities organized in groups for the current period 1 The groups of electrical quantities measured in real time are Current 2 Phase and neutral currents average currents and current unbalances Voltage Phase to phase and phase to neutral voltages average voltages and voltage unbalances Power Total power and power for each phase active reactive apparent and distortion Total harmonic distortion The total harmonic distortion THD for both current and voltage Frequency 1 The current period for a group is initialized by the last reset of one the maximum values in the group see below 2 Micrologic A and E trip units also determine the maximum value MAXMAX of the maximum MAX values and the minimum MINMIN value of the minimum values MIN of the phase currents 76 LV434104 06 2008 The Metering Function Resetting Maximum Minimum Values The maximum and minimum values in a group can be reset for the group via the communication option or on the front display module FDM121 see Services Menu p 159 The maximum and minimum values in a group can be reset on the keypad via the menu see Peak Demand Values Reset p 21 for the following groups Currents Voltages
29. Micrologic trip unit The table below uses 2 examples to illustrate the comparison of the phase and neutral currents with the activation limit value of the Ready LED Micrologic 5 2 Trip Unit 40 A Rating 3 Pole Micrologic 5 3 Trip Unit 400 A Rating 4 Pole The limit value is 15 A The limit value is 50 A This limit value can correspond for example Either to the sum of the 5 A phase current intensities 3 balanced phases Or to 7 5 A in 2 phases the current intensity in the third phase is zero Or to 15 A in one phase if the circuit breaker 3 pole e ls installed on a distribution with distributed neutral e Only has one loaded phase on a single phase load The current intensity in the other 2 phases is zero This limit value corresponds for example Either to the sum of the three 15 A phase current intensities and a 5 A neutral current intensity Or to 25 A in 2 phases the current intensity in the third phase and in the neutral is zero Or to 25 A in one phase and in the neutral the current intensity in the other 2 phases is zero LV434104 06 2008 133 Operating Assistance Operation of Pre Alarm and Alarm LEDs Electrical Distribution Protection Operation of Alarm LEDs Motor Protection The pre alarm orange LED and alarm red LED indications are tripped as soon as the value of one of the phase currents exceeds 90 and 105 respective
30. Page Local LED Indication 133 Indication on the Micrologic Display 135 Examples of Using Alarms 140 Alarm Monitoring of the Cos and Power Factor 141 132 LV434104 06 2008 Operating Assistance Local LED Indication Local Indicator LED Operation of the Ready LED The number of LEDs and their meaning depend on the type of Micrologic trip unit Type of Micrologic Description Distribution Ready LED green Blinks slowly when the electronic trip unit is ready to provide gt 215A E gt 90 105 protection 8 Q sQO ur Overload pre alarm LED orange Shows a steady light when the load exceeds X lt 90 of the Ir setting Overload alarm LED red Shows a steady light when the load exceeds 105 of the Ir setting Motor Ready LED green Blinks slowly when the electronic trip unit is ready to provide mS 95 protection l Ss O z TO Overload temperature alarm LED red Shows a steady light when the motor e Ed thermal image exceeds 95 of the Ir setting The Ready LED green blinks slowly when the electronic trip unit is ready to provide protection It indicates that the trip unit is operating correctly Note Activation of the Ready LED is guaranteed for a value equal to the sum of the circuit breaker current intensities for each phase and the neutral above a limit value This limit value is indicated above the Ready LED on the front face of the
31. Power With Harmonics Total Apparent Power The reactive power of the fundamental corresponds to the physical reactive power Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The reactive power for each phase and total reactive power is calculated Only the total reactive power can be calculated Qfund V jl sin where i 1 2 3 phase Qfundtot Qfund Qfund Qfunds Qfundtot Qfundw1 Qfundw2 Qfundw1 and Qfundw2 are the fictional reactive powers calculated by the 2 wattmeter method Distortion power is the quadratic difference between the reactive power with harmonics and the reactive power fundamental Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The distortion power for each phase and the total distortion power is calculated Only the total distortion power can be calculated where i 71 2 3 phase D JQ Qfund Dtot D4 Dj D Dtot Dw1 Dw2 Dw1 and Dw2 are the fictional powers calculated by the 2 wattmeter method The total reactive power with harmonics is not physically significant Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The total reactive power is calculated The total rea
32. Range of Circuit Breakers Upgradability of Trip Units Micrologic 2 5 and 6 trip units can be used on any Compact NSX circuit breaker The table below indicates which devices can be used according to the In rating of the distribution trip units and the circuit breaker size In Rating 40 100 160 250 400 630 Compact NSX100 x x Compact NSX160 x x x Compact NSX250 x x x x Compact NSX400 x 1 x Compact NSX630 x 1 x x 1 Micrologic 2 only Micrologic 2 M and 6 E M trip units can be used on any Compact NSX circuit breaker The table below indicates which devices can be used according to the In rating of the motor trip units and the circuit breaker size In Rating 25 50 80 100 150 220 320 500 Compact NSX100 x x x 1 x 2 Compact NSX160 x x x 1 x 2 x Compact NSX250 x x x 1 x 2 x x Compact NSX400 x Compact NSX630 x x 1 Micrologic 6 E M only 2 Micrologic 2 M only Micrologic 1 3 M trip units can be used on any Compact NSX400 and Compact NSX630 circuit breaker The table below indicates which devices can be used according to the In rating of the motor trip units and the circuit breaker size In Rating 320 500 Compact NSX400 x Compact NSX630 x x Onsite swapping of trip units is simple and safe No connections to make No special tools e g calibrated torque wrench
33. The name of the intelligent functional unit Aircon FDR on the screen example opposite P e O The name of the intelligent functional unit defined with RSU can be up to 45 can characters long but only the first 12 characters are visible on the front display module Ready gt 90 Ir gt 105 EDM121 Ir 250A I2 217A ESC vw A The Open Closed Trip status of the Compact NSX circuit breaker if the BSCM module is present Open on the screen example opposite The status of the LED indicators on the front face The long time protection Ir pick up setting The current intensity of the most heavily loaded phase I2 217 A in the screen example opposite Screen 2 in the Quick View menu displays the following currents OEE o Phase 1 current I1 H 213 Al Phase 2 current I2 12 219A Phase 3 current I3 I3 208 A Neutral current IN IN 2A ESC v A Screen 3 in the Quick View menu displays the following phase to phase voltages Phase 1 to phase 2 voltage V12 Phase 2 to phase 3 voltage V23 Phase 3 to phase 1 voltage V31 ESC v A Screen 4 in the Quick View menu displays the following phase to neutral voltages ONE 7 Phase 1 to neutral voltage V1N V1N 235 V Phase 2 to neutral voltage V2N VEN 232 V Phase 3 to neutral voltage V3N V3N 227 V ESC v A Screen 5 in the Quick View menu displays the following powers He 7 Active power Ptot i
34. Vavg the arithmetic mean of the 3 phase to phase voltages Vavg V12 V23 V31 3 e Phase to neutral Vavg the arithmetic mean of the 3 phase to neutral voltages Micrologic 4 pole or 3 pole trip unit equipped with the ENVT option Vavg VIN V2N V3N 3 LV434104 06 2008 75 The Metering Function Measuring the Current and Voltage Phase Unbalances Maximum Minimum Values Micrologic trip units calculate the current unbalance for each phase 3 values The current unbalance is expressed as a compared to the average current ota ER Ray 3 e Ik unbalance K 8V9 x 100 where k 1 2 3 lavg Nini eerie c ba ae zu I1 lavg 12 lavg I3 lavg 0 gt 0 lt 0 Hh 12 13 lavg Micrologic trip units calculate the Phase to phase voltage unbalance for each phase 3 values Phase to neutral if present voltage unbalance for each phase 3 values The voltage unbalance is expressed as a compared to the average value of the electrical quantity Vavg Vik Vavg 9 Vjk unbalance 96 Vaya x 100 where jk 12 23 31 EN ool Sree es te eo eee ee y 8E y V12 Vavg V23 Vavg V31 Vavg gt 0 lt 0 lt 0 V12 V23 V31 Vavg Note The unbalance values are signed relative values expressed as a The maximum minimum unbalance values are absolute values expressed as a The Micrologic A trip unit determines in real time the maximum MAX and minimum
35. apparent energy Es is always counted positively The calculation selection is determined by the information sought The absolute value of the energy that has crossed the poles of a circuit breaker or the cables of an item of electrical equipment is a relevant parameter for maintenance of an installation The signed values of the energy supplied and the energy consumed are needed to calculate the economic cost of an item of equipment By default absolute energy accumulation mode is configured The parameter setting can be modified using the RSU software see Metering Setup p 124 LV434104 06 2008 85 The Metering Function Resetting Energy The energy meters are arranged in the energy generating set see Real Time Measurements p 75 Meters The energy meters can be reset via the communication option or on the front display module FDM121 see Services Menu p 159 There are 2 additional active energy accumulation meters Epln and EpOut that cannot be reset 86 LV434104 06 2008 The Metering Function Harmonic Currents Origin and Effects of Harmonics Definition of a The number of nonlinear loads present on electrical networks is always increasing which results in a higher level of harmonic currents circulating in the electrical networks These harmonic currents Distort the current and voltage waves Degrade the quality of the distributed energy These distortions if they are si
36. below describes access the screens in the Services menu and resetting groups of measurements in the Reset sub menu Step Action Display 1 Select the Services menu in the Main menu using the Vand A keys Validate selection of the Services menu by pressing the OK key Main menu Pressing the ESC key has no effect 9 Quick view Xe Metering A Alarms lt ESC v OK A 2 The Services menu is displayed Select the Reset sub menu using the Vana A keys md Services ___ Validate selection of the sub menu by pressing the OK key gt Reset Pressing the ESC key returns to the Main menu Set up Maintenance Product ID Language ESC Y OK A 3 The Reset sub menu is displayed with the choice of measurement groups that can be reset 2 screens PS NN Select MIN MAX I using the W and keys to reset all the maximum and Energy minimum values of the currents gt MIN MAX I Validate selection of resetting the MIN MAX I group by pressing the OK key m us Pressing the ESC key returns to the Services menu MIN MAX PF cos o ESC Y OK A 4 A reset request confirmation message is displayed Confirm resetting the MIN MAX I group by pressing the OK key a second time 3 Reset NN Pressing the ESC key returns to the Reset sub menu Reset MIN MAX I ESC OK 5 A MIN MAX I group reset confirmation message is displayed Pressing the OK key returns to the Reset sub menu Reset NN Successful Reset
37. condition for operation in quadrant 1 inductive reactive energy consumed Alarm 121 monitoring of the leading cos on an inferiority condition for operation in quadrant 4 capacitive reactive energy consumed Setting the parameters for monitoring the cos codes 121 and 124 according to IEEE convention using the RSU software Alanis setup Selected alarm Lagging cos XEEE enano cos DELL Alanis setup Selected sarm Nore Lesing cos j ELL sal Code 124 Priety Drop out Pick up value qua 060 HH vee way 080 eetay 8 40 44 dewy 2 10 say 124 Monitoring the lagging cos o 121 Monitoring the leading cos Mechum Cone 121 preety wes e Drop cut Pick up value qun 060 H H oswequa 0 80 amay 3 40 HH mafo adaj Le TES TE zzi oa n3 PN a The 2 alarms defined can each be associated with an SDx module output see Setting the SDx Module Output Parameters p 128 With output Out1 alarm code 124 monitoring of the lagging cos With output Out2 alarm code 121 monitoring of the leading cos On starting the power at t2 since the load is lagging too much output Out1 will be activated 1 The Micrologic trip unit display will indicate Ir tr isd tsd li xln N WA 2 B 3 0 1 The output must be configured in permanent latching mode The Out1 screen can only be acknowledged if the alarm is no longer active After startup of
38. convention will be incorrect if the IEEE convention has been configured and vice versa 94 LV434104 06 2008 The Metering Function 3 2 Measurement Accuracy Tables At a Glance Aim This section presents the measurement accuracy tables for Micrologic A Ammeter and Micrologic E Energy trip units What s in this This section contains the following topics Section Topic Page Measurement Accuracy 96 Micrologic A Real Time Measurements 97 Micrologic E Real Time Measurements 98 Micrologic E Demand Value Measurements 104 Micrologic E Energy Metering 105 LV434104 06 2008 95 The Metering Function Measurement Accuracy Presentation Measurement Accuracy Micrologic trip units provide measurements Via the communication network On the front display module FDM121 in the Services Metering menu see Metering Menu p 155 Some measurements can be accessed on the Micrologic trip unit display see List of Metering Screens p 27 The tables in this chapter indicate the measurements available and specify the following information for each measurement Unit Measurement range Accuracy Accuracy range The trip units comply with the requirements of standard IEC 61557 12 in accordance with Class 1 for current metering Class 2 for energy metering The accuracy of each measurement is defined For a Micrologic tri
39. displayed The Isd pick up setting is expressed in multiples of Ir Ir tr isd tsd li xln N WA 2B 3C 7 Lock the setting The display switches to Setting readout mode on the Isd parameter the pictogram is displayed The Isd pick up setting is expressed as a value 715 A in the example mo Ir tr isd tsd li xin N 1A 2B 3C Unlock the setting The display reverts to Setting mode on the Isd parameter The m pictogram is displayed mo Ir tr isd tsd li xin N WA 2B 3C 26 LV434104 06 2008 Using Micrologic Trip Units List of Metering Screens Micrologic A Ammeter Mode Description of Screens Unit Down Arrows PN Bou d Readout as instantaneous rms value of the A The down arrow indicates the rs 3 phase currents 11 A I2 B and I3 C conductor phase neutral or ground corresponding to the Ground fault current Micrologic 6 Ig Value read Neutral current IN 4 pole or 3 pole with ENCT A option v B cu Readout and resetting of the A The down a eer the Max Reset Ok Maximum li MAX for the 3 phase currents peice p sn ida or Maximum ground fault current Micrologic 6 Ig ground on which the maximum was measured Maximum IN MAX for the neutral current 4 pole A or 3 pole with ENCT option LV434104 06 2008 27 Using Micrologic Trip Units
40. indication Output 2 is used to open the contactor For more details on the SDx and SDTAM modules see the Compact NSX circuit breakers User manual The operating mode for the SDx module outputs can be configured as Non latching Latching Time delayed non latching Closed forced Open forced The output S position follows the associated alarm A transitions M 2 Se A LL Alarm Green when activated white when deactivated Output High position activated low position deactivated Alarm activation transition Alarm deactivation transition N NND The position of the output S follows the active transition of the associated alarm A and remains latched irrespective of the alarm state 1 2 id 2 A 31 S A Alarm Green when activated white when deactivated S Output High position activated low position deactivated 1 Alarm activation transitions 2 Alarm deactivation transitions The output S follows the activation transition for the associated alarm A The output returns to the deactivated position after a time delay irrespective of the alarm state 1 2 L A S A Alarm Green when activated white when deactivated S Output High position activated low position deactivated 1 Alarm activation transitions 2 Alarm deactivation transitions The setting range for the time delay via the RSU software is 1 360 s B
41. information on communicating modules refer to the ULP system User manual Remote readout of the circuit breaker status can be accessed by all Compact NSX circuit breakers equipped with a BSCM module The following data is made available via the communication network Open closed position OF Trip indicator SD Electrical fault indicator SDE For more information refer to the Compact NSX circuit breakers User manual The measurement readout can only be accessed with Micrologic 5 and 6 trip units For more information on measurements see The Metering Function p 73 The operating assistance readout can only be accessed with Micrologic 5 and 6 trip units The following operating assistance information is made available Protection and alarm parameter settings see The RSU Parameter Setting Software p 119 History and tables of time stamped events see History and Time Stamped Information p 167 Maintenance indicators see Maintenance Indicators p 168 The circuit breaker remote control can be accessed by all Compact NSX circuit breakers equipped with a BSCM module and a communicating motor mechanism The following commands are made available via the communication network Circuit breaker opening Circuit breaker closing Circuit breaker reset For more information refer to the Compact NSX circuit breakers User manual 166 LV434104 06 2008 Operating Assistance
42. mechanism Close command counter Communicating motor mechanism Configuring the motor reset command Communicating motor mechanism Alarm threshold associated with the close command counter Modbus Interface Option e Interface Reading MOMS addresses Communication parameters setup The Basic prot tab is displayed by default when the user starts RSU The active tab is indicated by a blue pictogram For example this pictogram indicates that the Basic prot tab is the active tab In the example below the user has manually selected a Micrologic 6 2 E trip unit offline mode The Basic prot tab displays a reproduction of the front face of the Micrologic trip unit as well as its protection settings pa Micralogic RSU C WicrolopicWililily HSU_AWata New rsa fe x Ele Remote functions Setup Uveupdete Help Micrologic selection 1 Top und Datibuion MerdegeG2t P info fiec Schneider 1 pm Lva c ES Service II sicco ER Alone EE Outputs IE Breaker 1 0 GH Intertace i 2 S 2 rw s ps 1 m Yo o p Se N vA 20 2 test i A79 e 0 it L hd tsd k la tg IN 704 ASW 385A 000 375A 50A nons OFF 3 13dn G amp h 15r Pt off 1 dn Adin Aat 1 Micrologic selection windows 2 Accessible function tabs 3 Protection settings In the context of this manual only the functions relating to setup of the Micrologic trip unit and the SDx and SDTAM modules are d
43. monitoring is activated B Occurrence of an overload current on the application for example rotor braked due to high viscosity of one of the mixing fluids The Jam motor protection tjam time delay is actuated as soon as the motor current crosses the ljam pick up C End of Jam motor protection time delay Jam motor protection causes the Compact NSX circuit breaker to trip D Application returned to service manually after the motor has cooled and the circuit breaker has closed again The table below describes operation with the SDTAM module diagram II Event Comments A Identical to diagram I B Identical to diagram I C 400 ms before the end of the Jam motor protection time delay the SDTAM module Commands the contactor to open output OUT2 Sends a fault indication output OUT1 Both outputs are activated for a time delay which can be set between 1 and 15 minutes D Application contactor returned to service automatically the time delay allows the motor to cool down The SDTAM module can be set to the OFF position the application is returned to service manually by deactivating the SDTAM module power supply 58 LV434104 06 2008 The Protection Function Long Time Protection Presentation Long time protection on the Micrologic 6 E M trip unit is adapted to protecting all types of motor application against overload currents Operating Long time protection is I t IDMT Pri
44. of MIN MAX I OK 160 LV434104 06 2008 Operating Assistance Setting the The table below shows how to set the contrast on the front display module FDM121 from the Services Contrast menu Step Action Display 1 Select the Services menu in the Main menu using the W and A keys Main menu Validate selection of the Services menu by pressing the OK key o Quick view Pressing the ESC key has no effect A Metering A Alarms ESC Y OK A 2 The Services menu is displayed lt Select the Set up sub menu using the Vana keys Reset Validate selection of the Set up sub menu by pressing the OK key gt Setup Pressing the ESC key returns to the Main menu Maintenance Product ID Language ESC OK A 3 The Set up sub menu is displayed on the Display sub menu lt Validate selection of the Display sub menu by pressing the OK key Pressing the ESC key returns to the Services menu P Display ESC OK A 4 The Display sub menu is displayed S Display Select the Contrast sub menu using the Vana keys aem Validate selection of the Contrast sub menu by pressing the OK key Brightness Pressing the ESC key returns to the Set up sub menu ESC OK A 5 The Contrast sub menu is displayed A Set the contrast using the W and keys 78 Validate the contrast setting by pressing the OK key Pressing the ESC key retur
45. of neutral declaration 3 pole trip unit with ENCT option N Neutral protection active noN Neutral protection not active 32 LV434104 06 2008 Using Micrologic Trip Units Micrologic 6 E M LSIG Protection Parameter Setting Readout Screens Mode Description of Screens Unit Up Down Arrows oo a Ir Long time protection pick up value for the phases A The up arrow indicates 2d the Ir parameter The down arrows indicate the 3 phases CI Long time protection trip class value at 7 2 Ir S The up arrow indicates the Cl parameter Y Type of ventilation The up arrow indicates Auto Natural ventilation by the motor the Y parameter Moto Forced ventilation by a dedicated motor Isd Short time protection pick up value for the phases A The up arrow indicates the Isd parameter The down arrows indicate the 3 phases lunbal Phase unbalance protection pick up value The up arrow indicates expressed as a of the average motor current the lunbal parameter The down arrows indicate the 3 phases tunbal Phase unbalance protection time delay value S The up arrow indicates the tunbal parameter ljam Jam motor protection pick up value if OFF is A The up arrow indicates indicated jam motor protection is not active the ljam parameter The down arrows indicate the 3 phases tjam Jam motor protection time delay value S The up arrow indicates the tjam paramet
46. the Cos o MAX and the Cos q Values According to IEC Convention Setting the Cos o Alarm Parameters According to IEEE Convention Setting the SDx Output Parameters Acknowledging the Out1 Screen The cos MAX value corresponds to the minimum value of the load cos o whether leading or lagging this gives the user information on how the equipment is performing from a cost point of view The value of cos alone cannot be used to define the action to be taken to increase its value should inductances or capacitors be installed The alarm on the cos according to IEC convention integrated in the Micrologic trip unit is used to send an alert if a critical situation occurs This alarm associated with an alarm defining the type of load or the operating quadrant can be used to monitor the 2 critical situations automatically Monitoring of the cos q indicator is applied to management of the workshop described above When the power is started too high a value of cos lagging for example higher than 0 6 results in tariff penalties The capacitive compensation value to be used is determined by the value of the Qfund reactive power When the power is stopped too low a value of cos leading for example less than 0 6 results in tariff penalties The capacitive compensation element must be disconnected 2 alarms monitor the indicators fully Alarm 124 monitoring of the lagging cos q on a superiority
47. the capacitive compensation the alarm is no longer active The Out1 output is acknowledged by pressing the Q9 key twice validation and confirmation 142 LV434104 06 2008 Operating Assistance 6 2 FDM121 Switchboard Display Unit At a Glance Aim This section describes the FDM121 switchboard display unit What s in this This section contains the following topics Section Topic Page The ULP System 144 Description of the Front Display Module FDM121 147 Alarm Processing 150 Main Menu 151 Quick View Menu 152 Metering Menu 155 Alarms Menu 157 Services Menu 159 LV434104 06 2008 143 Operating Assistance The ULP System Definition The ULP Universal Logic Plug system is a connection system which can be used to construct an electrical distribution solution integrating metering communication and operating assistance functions for the Compact NSX circuit breaker COON Oa BRWND Micrologic 5 or 6 trip unit Front display module FDM121 Modbus communication interface module ULP cord NSX cord Modbus network 24 VDC auxiliary power supply Communication gateway EGX or MPS100 Ethernet network 144 LV434104 06 2008 Operating Assistance The ULP system can be used to enhance the Compact NSX circuit breaker functions by Local display of measurements and operating assistance data with the front display module FDM121 A Modb
48. the load this gives the user information on how the equipment is performing from a cost point of view and allows him to install compensation devices if necessary The cos MIN and cos o MAX values can be accessed on the front display module FDM121 The load cos values indicate in real time any correction actions The absolute value of too low a negative cos q 0 4 indicates that capacitors need to be installed to increase the value of the equipment cos q The value of too low a positive cos 0 3 indicates that capacitors need to be removed to increase the value of the equipment cos q The 2 alarms on the cos o according to IEEE convention integrated in the Micrologic trip unit are used to monitor the 2 critical situations automatically The table below gives the history of the cos values of the load of a workshop downstream of a Compact NSX according to IEC convention Time Evolution of the Load IEC Convention Cos o cos q MIN cos MAX t1 28h 00 min Power startup 0 4 0 4 0 4 t2 8h01 min Compensation system startup 4 0 9 4 0 9 0 4 t8 9h20 min Power stops 4 0 3 4 0 9 4 0 3 t4 2 9h 21 min Compensation system stops 4 0 95 4 0 95 0 3 The value of cos alone cannot be used to define the action to be taken to increase its value should inductances or capacitors be installed LV434104 06 2008 141 Operating Assistance Interpreting
49. the protection differs according to the motor operating conditions e During startup diagram I A Activation of startup B Activation of protection time delay as soon as the pick up threshold is crossed C Protection tripped at the end of the fixed time delay of 0 7 s e In steady state diagram II A Activation of startup B Activation of protection time delay as soon as the pick up threshold is crossed C Protection tripped at the end of the adjustable time delay The current unbalance falls below the lunbal pick up before the end of the tunbal time delay Phase unbalance protection does not trip diagram III e B Activation of protection time delay as soon as the pick up threshold is crossed e D Deactivation of protection Note The SDTAM module early tripping protection function can be used to command contactor opening see SDTAM Module Option p 57 The lunbal pick up and the tunbal time delay can be set as follows On the Micrologic trip unit set on the keypad Via the communication option using the RSU software The lunbal pick up setting value is expressed as a of the average current The pick up setting range on the keypad is 10 40 The step is 1 The default pick up setting value is 30 The accuracy range is 10 The tunbal time delay setting value is expressed in seconds The tunbal time delay setting depends on the operating conditions During startup the value of the ti
50. time delay as soon as the pick up threshold is crossed e D Protection disabled Note The SDTAM module early tripping protection function can be used to command contactor opening see SDTAM Module Option p 57 The lund pick up and the tund time delay settings can only be accessed by the communication option using the RSU software see Setting the Protection Parameters p 122 The lund pick up setting value is expressed in multiples of Ir The pick up setting range is 0 3 0 9 Ir The step is 0 01 Ir The default setting is OFF protection not active The accuracy range is 10 The tund time delay setting value is expressed in seconds The time delay setting range is 1 200 s The step is 1 s The default setting value for the time delay is 10 s LV434104 06 2008 69 The Protection Function Long Start Motor Protection Presentation Description Operating Principle Difficult Starting Long start motor protection provides additional protection For machines at risk of difficult starting e High inertia machines e High resistive torque machines e Machines with fluctuating load from steady state Examples of machines with a significant risk of difficult starting Fans compressors To avoid no load starts e Load not present e Machines oversized for the application Long start motor protection is activated as soon as the average motor current lavg exceeds 10 of the Ir
51. to 60 minutes in steps of 1 minute 5 60 mn By default the duration of the fixed metering window is set at 15 minutes At the end of each fixed metering window The demand value over the metering window is calculated and updated Calculation of a new demand value is initialized on a new metering window The duration of the sliding metering window can be specified from 5 to 60 minutes in steps of 1 minute 60s 5 60 mn By default the duration of the sliding metering window is set at 15 minutes At the end of each sliding metering window and then once a minute The demand value over the metering window is calculated and updated Calculation of a new demand value is initialized on a new metering window e By eliminating the contribution of the first minute of the previous metering window e By adding the contribution of the current minute 78 LV434104 06 2008 The Metering Function Synchronized Metering Window Quadratic Demand Value Thermal Image Arithmetic Demand Value Peak Demand Value Resetting Demand Peaks Synchronization is performed via the communication network When the synchronization pulse is received The calculation of the demand value over the synchronized metering window is updated Calculation of a new demand value is initialized Note The interval between 2 synchronization pulses must be less than 60 minutes
52. tsd li arrow moves under tr xin N 1A 2B 3C 4 Set the tr value required on the s A r dr isd tsd li xln keypad N 1A 2B 3C 5 Validate the setting the OK Ir tr sd tsd li xin pictogram blinks 6 Confirm the setting the c Ir tr isd tsd li xin confirmation OK is displayed for 2 s N 1A 2B 3C In Protection parameter setting mode a parameter setting can be expressed as a relative value In Protection parameter setting value readout mode the parameter setting is expressed directly as an actual value for example in amps To determine the actual value of a parameter currently being set as a relative value for example before validating the setting 1 Press the locking unlocking microswitch once the display switches to Readout mode on the parameter currently being set and indicates the actual parameter setting value 2 Press the amp microswitch again the display reverts to Setting mode on the parameter currently being set LV434104 06 2008 25 Using Micrologic Trip Units Example of Verification of a Protection Parameter Setting Value The table below illustrates as an example the verification of the setting value for the short time protection Isd pick up on a Micrologic 5 2 trip unit currently being set Step Action Using Display 1 The display is in Setting mode on the Isd parameter The m pictogram is
53. up Principle Tripping curve E 1 3 4 tsd gt No Parameter Description Ir Long time protection pick up Isd Short time protection pick up tsd Short time protection fixed time delay Setting the Short The Isd pick up and tsd time delay can be set as follows Time Protection On the Micrologic trip unit set on the keypad Via the communication option using the RSU software Isd Pick Up The Isd pick up setting value is expressed in multiples of Ir Setting Value The default Isd pick up setting value is 5 Ir minimum value The pick up setting range on the keypad is 5 13 Ir The step is 0 5 Ir The accuracy is 10 tsd Time Delay The time delay cannot be adjusted Value The non tripping time is 20 ms The maximum breaking time is 60 ms 62 LV434104 06 2008 The Protection Function Instantaneous Protection Presentation Instantaneous protection on Micrologic 6 E M trip units is adapted to protecting all types of motor application against very high intensity short circuit currents Operating Instantaneous protection is fixed the pick up value is determined by the trip unit rating Protection is Principle instantaneous Tripping curve 160 320A i ta O 5 P wl li No Parameter Description In Trip unit setting range The maximum setting corresponds to the trip unit In rating li Inst
54. up G 8 tg Ground fault protection time delay B 9 It ON OFF Ground fault protection I t curve in ON or OFF position a Function B Adjustable Ci Non adjustable Not present The protection parameters can be set as follows On the Micrologic trip unit using the preset dials depending on the protection parameter and the Micrologic type and on the keypad Via the communication option using the RSU software under the Basic prot tab For more information on the protection parameter setting procedure using the RSU software see Setting the Protection Parameters p 122 In addition to the adjustable instantaneous protection Micrologic trip units for electrical distribution protection feature a SELLIM non adjustable integrated instantaneous protection which can improve discrimination In addition to the devices integrated in the Micrologic trip units Compact NSX circuit breakers are equipped with reflex protection piston effect As soon as a very high short circuit current occurs above the instantaneous protection pick up opening of the main contacts creates an electric arc pressure which acts on a piston instantaneously This piston frees the opening mechanism and causes ultra fast circuit breaker tripping LV434104 06 2008 39 The Protection Function Long Time Protection Presentation Long time protection on Micrologic 5 and 6 trip units is adapted to protecting all types of electri
55. 000 3000 kvar 2 3000 3 kvar Qfundtot 3 3000 kvar Maximum value of total fundamental reactive power Qfundtot MAX Minimum value of total fundamental reactive power Qfundtot MIN Only with 4 pole or 3 pole trip unit with ENVT option kvar 1000 1000 kvar 2 1000 1 kvar Distorting power measurements for each phase D1 1 1000 kvar D2 D3 1 Maximum values of distorting powers for each phase D1 MAX D2 MAX D3 MAX Minimum values of distorting powers for each phase D1 MIN D2 MIN D3 MIN Total distorting power measurement Dtot kvar 3000 3000 kvar 2 3000 3 kvar Maximum value of total distorting power Dtot MAX 3 3000 kvar Minimum value of total distorting power Dtot MIN Operating Hectore Measurement Unit Measurement Accuracy Accuracy Range Range Operating quadrant measurement N A 1 2 3 4 N A N A Direction of phase rotation measurement N A 0 1 N A N A Type of load measurement leading lagging N A 0 1 N A N A LV434104 06 2008 101 The Metering Function Energy Quality The accuracy range is indicated for Micrologic trip unit operation Indicators In the current range 0 1 1 2 In In the voltage range 70 850 V Measurement Unit Measurement Accuracy Accuracy Range Range Measurement of 1 00 1 00 2 1 00 0 50 e Power factors PF1 PF2 PF3 and cos 1 co
56. 2 345 7 10 20 30 507010 200300 E Mar E Mar __________ Roflox tripping Micrologic 6 E M motor protection 200 s 88 Bes Bun nan wee BB 05 07 1 a BAS TI 4 M M In The tripping curve is identical to that of Micrologic 6 Ground fault protection is shown separately LV434104 06 2008 181 Tripping and Limitation Curves Compact NSX100 to 630 Reflex Tripping Tripping Curves 1229180 t o 2 FEE H gt of 355 8 5 SSos e 8 Se CEES SE RF 9 Spas 22 9x ge OE i D 9 SLN t gees 22 s 58 SgS S522 ee ges Sine ETR FEEN 100 ab KA rms 60 20 30 40 10 LV434104 06 2008 182 Tripping and Limitation Curves Compact NSX100 to 630 Limitation Curves Limitation Curves The limiting capacity of a circuit breaker is its aptitude to let through a current during short circuit that is less than the prospective short circuit current a A Isc 5 Prospective B Isc peak ne QE Prospective current Prospective Isc 2 Limited Isc peak Actual current Limited Isc ic t The exceptional limiting capacity of the Compact NSX range is due to the rotating double break technique very rapid natu
57. 2 M electronic trip units Micrologic 2 2 M 25A Micrologic 2 2 M 50 220A 4 10000 ES i as jzzizumcin I FERE 80A 9 528 90A Soe E POE 100A ir 50 100A 2000l ee LLLUZILLS i EHI 150A 112 70 150 A i 4000 ain _ A MA 200 100 50 204 10 5 t s 2 1 2 1 osi 02 of 005 002 T 001 571 2 345 710 2030 5070100 200300 571 2 345 7 10 20 30 5070100 200300 Mt i Reflex tripping 176 LV434104 06 2008 Tripping and Limitation Curves Tripping Curves Micrologic 6 2 E M and 6 E M electronic trip units Micrologic 6 2 E M 25A 50A 11225 50A 2 80A 11235 80A 150A 11270 150A 220 A Ir 100 220A G EE EB ki me naa gmn gu m op urs 125A 12 25A ae a HIE t lt 10ms i I liz 15 x In 7 1 2 345 7 10 20 30 5070100 200300 6 4 1 2 345 7 10 20 30 5070100 200300 Reflex tripping liz 17 x In Micrologic 6 E M ground fault protection ogni o 200 s 88 Bes B kin wots BB 05 07 1 20 30 M M gt The tripping curve is identical to that of Micrologic 6 Ground fault protection is shown separately LV434104 06 2008 177 Tripping and Limitation Curves Compact NSX400 to 630 Distribution Protection Tripping Curves Mic
58. 3000 s 0 2 In 60s 15s Under I3 Demand 68 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Under IN Demand 69 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Over lunbal MAX 70 5 60 lavg 1 3000 s 2596 40 s 10s Over Voltage V12 71 100 1100 V 1 3000 s 500 V 40 s 10s Over Voltage V23 72 100 1100 V 1 3000 s 500 V 40 s 10s Over Voltage V31 73 100 1100 V 1 3000 s 500 V 40 s 10s Over Volt Vavg L N 75 100 1100 V 1 3000 s 300 V 5s 2s Under Voltage V12 76 100 1100 V 1 3000 s 320 V 40 s 10s Under Voltage V23 77 100 1100 V 1 3000 s 320 V 40 s 10s Under Voltage V31 78 100 1100 V 1 3000 s 320 V 40 s 10s Over V MAX L L 79 100 1100 V 1 3000 s 300 V 5s 2s Under Volt Vavg L N 80 100 1100 V 1 3000 s 180 V 5s 2s Under V MIN L L 81 100 1100 V 1 3000 s 180V 5s 2s Over Vunb MAX L N 82 2 30 Vavg 1 3000 s 1096 40 s 10s Over Vunbal V12 86 2 30 Vavg 1 3000 s 1096 40 s 10s Over Vunbal V23 87 2 30 Vavg 1 3000 s 1096 40 s 10s Over Vunbal V31 88 2 30 Vavg 1 3000 s 1096 40 s 10s Over Vunb MAX L L 89 2 30 Vavg 1 3000 s 1096 40 s 10s Phase sequence 90 0 1 N A 0 N A N A Under Frequency 92 45 65 Hz 1 3000 s 45 Hz 5s 2s Over Frequency 93 45 65 Hz 1 3000 s 65 Hz 5s 2s Over KW Power dmd 99 1 1000 kw 1 3000 s 100 kw 40s 10s Leading cos IEEE 1 121 0 0 99 1 3000 s 0 80 40 s 10s Lead Lag cos o IEC 1 123 0 0 99 1 3000 s 0 80 40s 10s Lagging cos IEEE 1 124 0 99 0 1 3000 s 0 80 40s 10s
59. ES Service RM Bessie prc ER ass EIE Outputs Pj Pots Ps5 N SA fm 3 4 li t led ted h IN 2 XA 4 192 4 00 004 1100004 0900dn Gir Gdi ft off ISi 15d 0 000 1 Button for downloading information from the trip unit to the PC 2 Button for downloading information from the PC to the trip unit 2 different user profiles are available in the RSU software Commissioning and Schneider Service The Commissioning profile is the default profile when you start the RSU software This profile does not need a password The Schneider Service profile allows the same access as the Commissioning profile plus the firmware updates and password resets The firmware to be downloaded can be accessed on www schneider electric com 120 LV434104 06 2008 The RSU Parameter Setting Software Description of the RSU Software Functions Saving and Printing The RSU software configuration functions can be accessed via different tabs Tab Functions Service Configuring the metering functions Micrologic E Setting the Protection Parameters ie asic prot Configuring pre alarms and the 10 user defined alarms Eg Alarms SRA p Assignment of the two SDx outputs SD Outputs 9 pu FjPasswords Configuring four password levels BSCM Module Option EFlBreakerl O Counters for OF operations and actions on SD and SDE faults Alarm threshold associated with the OF counter Communicating motor
60. GA Irtestace SOx SOX deugnaton L Arngred evert Delay fs 1 30 041 Long tne prot ir Qo Du 2 Gound im prot lg Default The figure below illustrates the Outputs tab for a Micrologic 6 trip unit Assignment of Iv SDX SDX designation Assigned event Mode Delay s the SDx Module SDX Dut 1 Long time prot Ir Outputs SDX Out 2 Gound fault prot Ig The SDx module output assignment depends on the type of Micrologic trip unit installed on the module Both outputs are assigned by default as follows Micrologic 5 trip unit e Output 1 is assigned to the thermal fault indication SDT function e Output 2 is assigned to the long time pre alarm PAL Ir function Micrologic 6 trip unit e Output 1 is assigned to the thermal fault indication SDT function for electrical distribution applications Output 1 is assigned to None for motor feeder applications e Output 2 is assigned to the ground fault indication SDG function 128 LV434104 06 2008 The RSU Parameter Setting Software Assignment of an Alarm to an SDx Module Output The procedure for assigning an alarm to an SDx module output is as follows Step Action 1 Double click on the output Out1 or Out2 to be assigned M SDX SDX designation Assigned event Mode Delay s Long li tl x E POO SDX Out 2 Bound faut pol Ig An Output setup window appears 2 Select the alarm to be assigned to the output from the Alarm dropd
61. IN source Z4 ZSI IN ST short time protection Z5 ZSI IN GF ground fault protection Micrologic 6 Outputs Z3 Z4 and Z5 are only available on Compact NSX400 630 circuit breakers The short time and ground fault protection time delay settings Micrologic 6 for the protections managed by the ZSI function must comply with the rules relating to time discrimination Connection The figures below show the options for connecting devices together Principles Protection Connection Diagram Ground fault and Output Z2 of the trip unit on the downstream circuit short time breaker Q2 is connected to inputs Z4 and Z5 of the protection trip unit on the upstream circuit breaker Q1 Micrologic 6 Short time Output Z2 of the trip unit on the downstream protection circuit breaker Q2 is connected to input Z4 of the trip unit on the upstream circuit breaker Q1 Inputs Z3 and Z5 must be short circuited Ground fault Output Z2 of the trip unit on the downstream protection circuit breaker Q2 is connected to input Z5 of the Micrologic 6 trip unit on the upstream circuit breaker Q1 Inputs Z4 and Z3 must be short circuited Note When the ZSI function is not used downstream inputs Z3 Z4 and Z5 must be short circuited Failure to comply with this principle inhibits setting the short time and ground fault protection time delays 52 LV434104 06 2008 The Protection Function Example of a Multi Source Distribution Characteristics of the Pilot Wire Connection
62. Isd parameter The down arrows indicate the 3 phases Isd IN Short time protection pick up value for the A The up arrow indicates neutral 4 pole or 3 pole trip unit with ENCT option and the Isd parameter neutral protection active The down arrow indicates the neutral tsd Short time protection time delay value S The up arrow indicates The time delay is associated with the It inverse time the tsd parameter curve protection function ON t function active OFF I t function not active li Instantaneous protection pick up value setting for the A The up arrow indicates phases and for the neutral 4 pole or 3 pole trip unit with the li parameter ENCT option and neutral protection active The down arrows indicate the 3 phases Ig Ground fault protection pick up value A The up arrow indicates the Ig parameter The down arrows indicate the 3 phases tg Ground fault protection time delay value S The up arrow indicates The time delay is associated with the I t inverse time the tg parameter curve protection function ON t function active OFF I t function not active es Neutral declaration 3 pole trip unit with ENCT option v 3 p p ption N Neutral protection active noN Neutral protection not active LV434104 06 2008 31 Using Micrologic Trip Units Micrologic 6 LSIG Pr ion SIG orectio Mode Description of Screens Unit Up Down Arrows Paramet
63. Low voltage electrical distribution Compact NSX Micrologic 5 6 Electronic trip units User manual 06 2008 m SD Yi Pt Ne yi P 4 D gt Eo ras Li VL i aD M z Schneider Table of Contents Safety Information 25252 ior metido suce daos tud ats Side tec cts 5 About the B60K i rA gere eee ee tee Tem nv base thease 7 Chapter 1 Using Micrologic Trip Units llle iren 9 The Micrologic Range of Trip Units RII 10 Description of the Micrologic 5 and 6 Trip Units llli 15 Navigation Principle x o eek mtt Gately eet ddp ki Pte Ren Ru Re ee ex n a beg 18 Readout Mode 0 oec en PH eene uh RW ewe e kd ee ee eed 19 Setting Mode ech wha RUDI ot eile Ae bee aia dB era Aneesh aie ence EDU 23 List of Metering Screens 2 0 eee tenet eens 27 List of the Protection Parameter Screens 0 0 0 cette eee eae 29 Chapter 2 The Protection Function llle 35 2 1 Electrical Distribution Application 0 0 ttt teens 36 Electrical Distribution Protection 0 0 0 RI HI III 37 Long Time Protection eo ee Lae tite chee uda Mes fee Rea Rye ie Eu Gee fees 40 Short Time Protection 0 cece e mm 43 Instaritarieous Protectors irag ear a gt Rem RR nbi RAO ERRORS DC eee ake 45 Ground Fault Protection i seise can RR ED e RR LPPYTA pr EI M quereis 46 Neutrals Protection 3E ERROR E EEA E Ea a RR CIAUIR ER sucess RES 48 ZO Function cc cd tot
64. Micrologic trip unit set on the keypad Via the communication option using the RSU software 64 LV434104 06 2008 The Protection Function Ig Pick Up Setting Values Time Delay Setting Values Ground Fault Protection Test The lg pick up setting value is expressed in multiples of In The default Ig pick up setting value is the same as the minimum dial value 0 60 In for trip units rated 25 A 0 30 In for trip units rated 50A 0 20 In for trip units rated gt 50 A Ground fault protection can be deactivated by setting the Ig dial to the OFF position Ground fault protection can be reactivated even with the Ig dial in the OFF position By fine tuning on the keypad Via the communication option The 3 tables below specify the setting values preset by a dial and setting ranges set on the keypad For trip units rated 25 A For trip units rated 50 A For trip units rated gt 50 A On the keypad the step is 0 05 In Rating 25A Type of Setting Value or Setting Range xin Preset by a dial 0 60 0 60 0 60 0 60 0 70 0 80 0 90 1 OFF Setting range on 0 60 0 60 0 60 0 60 0 6 0 7 0 6 0 8 0 6 0 9 0 6 1 0 6 1 OFF the keypad Rating 50 A Type of Setting Value or Setting Range xln Preset by a dial 0 30 0 40 0 50 0 60 0 70 0 80 0 90 1 OFF Setting range on 0 30 0 3 0 4 0 3
65. N Neutral protection not active 3 pole trip unit without ENCT option or with ENCT option not declared Ir tr isd tsd li xin 22 LV434104 06 2008 Using Micrologic Trip Units Setting Mode Setting the Protection Parameters Setting a Protection Parameter Using a Dial The protection parameter settings can be accessed By a dial and fine tuned on the keypad for the main protection parameters On the keypad for all protection parameters A CAUTION RISK OF NO PROTECTION OR NUISANCE TRIPPING Only qualified persons are authorized to modify the protection parameters Failure to follow these instructions can result in injury or equipment damage The up arrow on the display indicates the protection parameter currently being set Setting using a dial or presetting involves the following protection parameters The Ir and Isd pick ups for Micrologic 5 The Ir and lg pick ups for Micrologic 6 Turning a dial z Selection of the screen for the protection parameter assigned to the dial results simultaneously in Unlocking if necessary the padlock the navigation interface is in protection parameter setting mode Setting the protection parameter assigned to the dial to the value indicated on the dial and on screen The protection parameter is fine tuned on the keypad the setting value cannot exceed that indicated by the dial Setti
66. NCT option and the Isd parameter neutral protection active The down arrow indicates the neutral tsd Short time protection time delay value S The up arrow indicates The time delay is associated with the It inverse time the tsd parameter curve protection function ON t function active OFF t function not active li Instantaneous protection pick up value setting for the A The up arrow indicates phases and for the neutral 4 pole or 3 pole trip unit with the li parameter ENCT option and neutral protection active The down arrows indicate the 3 phases ees Neutral declaration 3 pole trip unit with ENCT option xe a dae N Neutral protection active noN Neutral protection not active LV434104 06 2008 29 Using Micrologic Trip Units Micrologic 5 LSI Pr ion F otecho Mode Description of Screens Unit Up Down Arrows Parameter Setting Screens Ord Ir Long time protection pick up setting for the phases A The up arrow indicates the Preset by a dial Ir parameter The down arrows indicate the 3 phases tr Long time protection time delay setting S The up arrow indicates the tr parameter Isd Short time protection pick up setting for the phases Isd Ir The up arrow indicates the Preset by a dial Isd parameter The down arrows indicate the 3 phases tsd Short time protection time delay setting S The up arrow indicates the Activation of the It inverse time curve
67. NSX circuit breakers equipped with the Micrologic 6 E M trip unit can be used to create motor feeders to 2 devices 1 Compact NSX circuit breaker equipped with a Micrologic 6 E M trip unit 1A Short circuit protection 1B Overload protection 1C Ground fault current protection 2 Contactor 3 SDTAM Module Option The Micrologic 6 E M trip unit considers the application to be operating as soon as the 10 of Ir pick up is crossed in a positive direction by the motor current 2 operating states are considered e Startup Steady state The Micrologic 6 E M trip unit considers the application to be in startup mode according to the following criteria Start As soon as the 10 of Ir pick up is crossed in a positive direction by the motor current End As soon as the Id pick up is crossed in a negative direction or at maximum after a td time delay defined as follows e f long start motor protection has not been activated default scenario the Id pick up equals 1 5 Ir and the td time delay equals 10 s non configurable values Exceeding the 10 s time delay does not result in tripping e f long start motor protection see Long Start Motor Protection p 70 has been activated the Id pick up equals l ong and the td time delay equals t ong configurable values Exceeding the t ong time delay results in long start motor protection tripping Note The Micrologic trip unit measurement electronics filters the sub
68. Phase unbalance protection Calculates the current unbalance for each phase compared to the average current expressed as a 96 e lavg 1 LES e Ik unbalance 96 K129 100 where k 4 2 3 lavg Compares the value of the maximum current unbalance with the lunbal protection pick up The diagram below shows a maximum positive unbalance on phase 2 a ng aera er A lt a ee eee E s RENE lt lavg 12 lavg I3 lavg 0 gt 0 lt 0 Hh l2 13 lavg If the maximum current unbalance value is higher than the phase unbalance protection unbal pick up the tunbal time delay is actuated Phase unbalance protection cannot be deactivated Phase unbalance protection is activated during startup and in steady state 66 LV434104 06 2008 The Protection Function Operating Principle Setting the Protection lunbal Pick Up Setting Value tunbal Time Delay Setting Value The figures below illustrate the operating possibilities l Diagram I l Diagram II l Diagram III mE Lym tunbal gt t 1M Motor current 1D Maximum unbalance of the motor phase currents 2A Monitoring by phase unbalance protection during startup diagram 2B Monitoring by phase unbalance protection in steady state diagrams II and III White Not active Green Active The current unbalance does not fall below the lunbal pick up before the end of the tunbal time delay the phase unbalance protection trips The behavior of
69. Product version Identification of the intelligent functional unit modules Language Navigation Navigation within the Main menu is as follows The A and V keys are used to select one of the 4 menus The OK key is used to confirm the selection The ESC key has no effect LV434104 06 2008 151 Operating Assistance Quick View Menu Presentation The Quick View menu presents the information essential for operation divided into a number of screens The number of available screens and their content depend on The type of Micrologic trip unit A or E The number of circuit breaker poles 3 pole or 4 pole The presence of options ENVT or ENCT The screen number and number of available screens are indicated in the top right hand corner of the display Navigation Navigation within the Quick View menu is as follows The A and V keys are used to go from one screen to another The ESC key is used to return to the main menu The key can be used to modify the display mode and to switch to Bar Graph mode see Measurement Display Modes p 156 152 LV434104 06 2008 Operating Assistance Screens in the Quick View Menu The table below shows screens 1 to 7 of the Quick View menu for a Compact NSX 4 pole circuit breaker equipped with a Micrologic E trip unit Screen Description ORC 17 Y Open xL Screen 1 in the Quick View menu displays
70. T E c t where G P QorS T The value of the instantaneous active power P and the reactive power Q can be positive power consumed or negative power supplied according to the operating quadrant see Power Sign and Operating Quadrant p 82 The value of the apparent power S is always counted positively For each type of energy active or reactive a partial energy consumed meter and a partial energy supplied meter calculate the accumulated energy by incrementing once a second The contribution of the instantaneous power consumed for the energy consumed meter E t In consumed E Gin u cin 3600 where Gin Ptot or Qtot consumed t 1 The contribution as an absolute value of the power supplied for the energy supplied meter power supplied is always counted negatively E t Out supplied 13600 where Gout Ptot or Qtot supplied gt Gout u Gout t 1 The calculation is initialized by the last Reset action see Resetting Energy Meters p 86 From the partial energy meters and for each type of energy active or reactive an energy meter provides either of the following measurements once a second The absolute energy by adding the consumed and supplied energies together the energy accumulation mode is absolute E t absolute E t In E t Out The signed energy by differentiating between consumed and supplied energies the energy accumulation mode is signed E t signed E t In E t Out The
71. UTION CAUTION indicates a potentially hazardous situation which if not avoided can result in injury or equipment damage Electrical equipment should be installed operated serviced and maintained only by qualified personnel No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material 2008 Schneider Electric All Rights Reserved LV434104 06 2008 Safety Information 6 LV434104 06 2008 About the Book A q a At a Glance Document Scope Validity Note Related Documents Product Related Warnings User Comments The aim of this manual is to provide users installers and maintenance personnel with the technical information needed to operate the Micrologic trip units in Compact NSX circuit breakers The trip units described in this manual are Micrologic 5 2 A 5 3 A 5 2 E and 5 3 E trip units Micrologic 6 2 A 6 3 A 6 2 E and 6 3 E trip units Micrologic 6 2 E M and 6 3 E M trip units The other trip units in the Micrologic range and the thermal magnetic trip units on Compact NSX circuit breakers are described in the Compact NSX circuit breakers User manual Schneider Electric cannot be held responsible for any errors in this document Please contact us if you have any suggestions for improvements or modifications or if you have found any errors in this publication No part of this document may be reprod
72. Undl displayed 1 Ir Cl 8 Isd lunbal tunbal ljam tjam N 1 A 2 B 3 0 Tripped by long start protection Strt displayed 1 These trip causes can be managed automatically by SDTAM output 2 OUT2 action on the contactor see SDTAM Module Option p 57 LV434104 06 2008 137 Operating Assistance Acknowledging The trip screens are acknowledged by pressing the Z key twice validation and confirmation the Trip Screens A CAUTION RISK OF CLOSING ON ELECTRICAL FAULT Do not close the circuit breaker again without inspecting and if necessary repairing the downstream electrical equipment Failure to follow these instructions can result in injury or equipment damage The fact that a protection has tripped does not remedy the cause of the fault on the downstream electrical equipment Step Action Isolate the feed before inspecting the downstream electrical equipment Look for the cause of the fault Inspect and if necessary repair the downstream equipment Inspect the equipment refastening of connections etc in the event of a short circuit trip a A O Nj Close the circuit breaker again For more information on troubleshooting and restarting following a fault see the Compact NSX circuit breakers User manual Indication on Internal Failure ofthe Micrologic 5 Cause Trip Unit ir tr isd tsd li xin A
73. V434104 06 2008 79 The Metering Function Power Metering Micrologic E Presentation The Micrologic E trip unit calculates the electrical quantities required for power management The instantaneous values of the Active powers total Ptot and per phase in kW Reactive powers total Qtot and per phase in kvar Apparent powers total Stot and per phase in kVA Fundamental reactive powers total Qfundtot and per phase in kvar Distortion powers total Dtot and per phase in kvar The maximum and minimum values for each of these powers The demand values and the peaks for the total Ptot Qtot and Stot powers The cos and power factor PF indicators The operating quadrant and type of load leading or lagging All these electrical quantities are calculated in real time and their value is updated once a second Principle of The Micrologic E trip unit calculates the powers from the rms values of the currents and voltages Power Metering The calculation principle is based on Definition of the powers Algorithms depending on the type of trip unit 4 pole or 3 pole Definition of the power sign circuit breaker powered from the top or underside Calculation The calculation algorithm based on the definition of the powers is explained in Power Calculation Algorithm Algorithm p 83 Calculations are performed taking account of harmonics up to the 15th 80 LV434104 06 2008 The Metering Function
74. V434104 06 2008 The Protection Function Operating Principle No Load Starting Setting the Protection llong Pick Up Setting Value tlong Time Delay Setting Value On starting the average motor current lavg does not exceed the long start motor protection l ong pick up The protection remains active as long as the value of the average current lavg has not fallen below 1096 of the Ir setting value l Diagram III Ilong 10 Ir 1 Motor current 2 Activation of long start motor protection time delay White Protection not active Green Protection active Diagram III The motor current has not fallen below 10 of the Ir setting value before the end of the tlong time delay long start motor protection trips A Activation of protection time delay 10 of Ir pick up is exceeded B Protection tripped at the end of the time delay If the motor current falls back below 10 of the Ir setting value before the end of the protection tlong time delay for example on contactor opening long start motor protection does not trip Note The Micrologic trip unit measurement electronics filters the subtransient state first current peak of approximately 20 ms on contactor closing This current peak is not therefore taken into account when assessing whether the l ong pick up has been crossed The l ong pick up and the t ong time delay settings can only be accessed by the communication option using the RSU s
75. VC cable with a CSA of 10 mm adequately protected by an NSX160F The table above indicates that the permissible stress is 1 32x10 A s All short circuit currents at the point where an NSX160F Icu 35 kA is installed are limited with a thermal stress less than 6x105 A s curve next page Cable protection is therefore ensured up to the limit of the breaking capacity of the circuit breaker LV434104 06 2008 183 Tripping and Limitation Curves Current limiting curves Limited short circuit current kA peak Limited short circuit current kA peak d 300 5 2 EL a eee 200 300 kA rms RC Energy limiting curves Limited energy Limited energy i P 3 amp it HW i Seis ZRIN ZA ERA EEEN WERE ASSEN HENGERBEN ENNES ESSIE Hi SHENH 2E PE REREH Eee 2 34 6 10 20 30 4050 70 100 150200 300 2 oor S 10 20 30 4050 70 100 150200 300 kA rms 184 LV434104 06 2008 LV434104 Micrologic 5 6 electronic trip units User manual Compact NSX CE LV434104 France 3 6 06480 022158 AAV66165 2008 Schneider Electric All rights reserved Schneider Electric Industries SAS 89 boulevard Franklin Roosevelt F 92505 Rueil Malmaison Cedex France Tel 33 0 1 41 29 85 00 http www schneider electric com LV434104 As standards specifications and designs change from time to time please ask for confirmation of the information given in this publicatio
76. alarms see Alarm Processing p 150 Navigation The table below presents an example of viewing the history Step Action Display 1 Select the Alarms menu in the Main menu using the W and A keys Main menu Validate selection of the Alarms menu by pressing the OK key X3 Quick view Pressing the ESC key has no effect Metering A DEMS Services ESC w OK A 2 The Alarms menu is displayed Select the Alarm History sub menu in the Alarms menu using the V ana A gt Alarm History keys Validate selection of the Alarm History sub menu by pressing the OK key Pressing the ESC key returns to the Main menu ESC ww OK A 3 The Alarm History sub menu opens on the most recent alarm screen A Aarm Histo 1 2 occurrence or completion Long fee preti The A and V keys are used to go from one screen to another Pressing the ESC key returns to the Alarms menu Code 16384 5 Nov 2007 x 02 31 03 61 AM ESC V A A REE 2 2 Long time prot Ir Code 16384 5 Nov 2007 A 02 02 4516 AM ESC v A Note If no alarm has occurred the Alarm History sub menu displays the screen below Pressing the Clear key returns to the Alarms menu A REE 1 1 Data Unavailable Clear LV434104 06 2008 157 Operating Assistance Alarm History The figure below shows an example of an alarm history screen Screen A Alarm History 1 3 Long time prot Ir
77. and time delay 4 Deactivation parameters drop out and time delay 5 Priority Level 126 LV434104 06 2008 The RSU Parameter Setting Software Setting an Alarm s Parameters Modifying an Alarm Deleting an Alarm In the Alarm setup screen Step Action 1 Set the priority level in the Priority window using the scroll bar 4 options 2 Set the pick up threshold value and time delay if present in the Pick up value and Pick up delay windows using the scroll bars 3 Set the drop out threshold value and time delay if present in the Drop out value and Drop out delay windows using the scroll bars 4 Confirm the parameter setting by clicking OK the alarm is activated in the dropdown list of assignments with its priority level and the values of its activation and deactivation parameters For parameters with a wide setting range there are two scroll bars Left hand scroll bar for presetting Right hand scroll bar for fine tuning The RSU software monitors the parameter setting ranges and prohibits setting anomalies for example if the pick up threshold is set below the drop out threshold for an alarm with a superiority condition the software sets the thresholds to the same value by default Parameters which have not been set remain at their default value except that modification of the value by the RSU software is mandatory to avoid any anomalies For more details on the list of alarms the setting
78. antaneous protection pick up li Pick up Value The li pick up value is directly determined by the trip unit In rating and is expressed in xln li pick up value according to the Micrologic trip unit In rating accuracy is 10 In Rating A 25 50 80 150 220 320 500 Instantaneous Pick up 425 750 1200 2250 3300 4800 7500 A The non tripping time is 0 ms The maximum breaking time is 30 ms LV434104 06 2008 63 The Protection Function Ground Fault Protection Presentation Ground fault protection on Micrologic 6 E M trip units is adapted to protecting all types of motor application against ground fault currents in the TN S system see Compact NSX circuit breakers User manual Operating Ground fault protection is definite time It can be configured as lg pick up and as tg trip time delay Principle Tripping curve 0 em A 6 7 tg T lg No Parameter Description 0 In Trip unit setting range Minimum setting maximum setting trip unit In rating 6 lg Ground fault protection pick up tg Ground fault protection time delay Setting the The lg pick up can be set as follows Ground Fault On the Micrologic trip unit preset by the Ig dial and fine tuned on the keypad Protection Viathe communication option using the RSU software preset by the Ig dial on the Micrologic trip unit and fine tuned via the RSU software The tg time delay can be set as follows On the
79. asurements etc The full list of measurements displayed depends on the auxiliaries associated with the Compact NSX circuit breaker and the type of Micrologic electronic trip unit Navigation The table below describes access the screens in the Metering menu and selection of voltage measurements Step Action Display 1 Select the Metering menu in the Main menu using the VanA keys Main menu Validate selection of the Metering menu by pressing the OK key daQuick view Pressing the ESC key has no effect Metering A Alarms c Service ESC y OK A 2 The Metering menu is displayed on 2 screens The first screen in the Metering menu displays the following measurements LEE Currents VLL VLN a Voltages PQs Powers E 9 Energies F PF cos o Frequency power factor and cos ESC v OK A The second screen in the Metering menu displays the measurement of Metering Total harmonic distortion THD gt THD i Select the sub menu of measurements to be displayed using the V and amp keys ESC w OK A 3 Select for example the V L L V L N sub menu in the Metering menu using the lt n Vana A keys gt VLLL VL N PQS E F PF cos o ESC v OK A 4 Screen 1 10 in the V L L V L N sub menu is displayed with the phase to phase voltage values The V and keys are used to switch from one screen to another and display all th
80. ated 2 values The table below indicates the direction in which the indicators vary and their value in receiver mode IEEE Convention Operating quadrant Q1 Q4 Direction in which the cos or PFs vary over the operating range Ep cd p ii MIN MAX MIN MAX 0 0 3 0 8 1 Value of the cos or PFs over the operating range 1 0 8 0 4 0 The quality indicator MAX and MIN indicate both critical situations According to the IEC convention critical situations in receiver mode on a capacitive or inductive load are detected but not discriminated one value The table below indicates the direction in which the indicators vary and their value in receiver mode IEC Convention Operating quadrant Q1 Q4 Direction in which the cos or PFs vary over the operating range ee nm MAX MIN MIN MAX Value of the cos or PFs over the operating range 0 0 3 0 8 1 1 40 8 0 4 4 0 The quality indicator MAX indicates both critical situations LV434104 06 2008 93 The Metering Function Selecting the The sign convention for the cos and PF indicators is configured in the RSU software see Metering Sign Convention Setup p 124 for the Cos q and The IEEE convention is applied by default Power Factor PF Note The sign convention selection also determines the alarm selection monitoring of an alarm indicator supposed to be IEC
81. ation of the current wave by means of a single number The limit values below should be taken into consideration THD I Value Comments THD I lt 10 Low harmonic currents No need to worry about malfunctions 10 lt THD I lt 50 Significant harmonic currents Risk of heat rise oversizing of supplies 50 lt THD l High harmonic currents The risks of malfunction degradation dangerous heat rise are almost certain if the installation has not been specifically calculated and sized with this restriction in mind Deformation of the current wave created by a polluting device can lead to deformation of the voltage wave depending on the level of pollution and the source impedance This deformation of the voltage wave is seen by all receivers powered by the supply Sensitive receivers can therefore be disturbed Hence a polluting receiver with a high THD I may not be affected by its pollution but it may cause malfunctions on other sensitive receivers Note THD I metering is an effective way of determining the potential polluters on electrical networks LV434104 06 2008 89 The Metering Function Voltage THD The voltage THD is defined by standard IEC gt 61000 2 2 It is expressed as a of the rms value of harmonic voltages greater than 1 in relation to the rms value of the fundamental voltage first order The Micrologic E trip unit calculates the voltage THD up to the 15th harmoni
82. bus network Thanks to the ULP system the functional unit becomes intelligent since it includes metering functions and or communication functions Functional unit Intelligent functional unit measurements and local display Functional unit intelligent measurements local display and communication 146 LV434104 06 2008 Operating Assistance Description of the Front Display Module FDM121 Presentation The front display module FDM121 displays the measurements alarms and operating data from the ULP modules on the intelligent functional unit such as the Micrologic A or E trip unit in a Compact NSX circuit breaker for example 4 a a Tr em a 1 IE adi LT 2 el ES ike i nh tS lye i 3 art MeL a A n as 3 I SIN AY P IN gt GOV dr 3 4 5 6 Alarm indicator LED LCD screen Navigation keys Functional ground 24 V DC supply terminal block ULP connectors oahAnd For more information on the general characteristics of the front display module FDM121 see the ULP system User manual Table of The front display module FDM121 has the following characteristics Characteristics Dimensions Without supply terminal block 96 x 96 x 33 1 mm With supply terminal block 96 x 96 x 43 2 mm Screen 128 x 128 pixels Viewing angle Horizontal 30 Vertical 60 Operating temperature 10 55
83. c 15 Vrms Vy rms This factor can in theory be higher than 100 but is in practice rarely higher than 15 The total harmonic distortion THD V can be used to assess the deformation of the voltage wave by means of a single number The limit values below are usually taken into account by energy distribution THD V companies THD V Value Comments THD V lt 5 Insignificant deformation of the voltage wave No need to worry about malfunctions 5 lt THD V lt 8 Significant deformation of the voltage wave Risk of heat rise and malfunctions 8 lt THD V Significant deformation of the voltage wave The risks of malfunction are almost certain if the installation has not been specifically calculated and sized with this restriction in mind Deformation of the voltage wave is seen by all receivers powered by the supply Note The THD V indication can be used to assess the risks of disturbance of sensitive receivers supplied with power Distortion Power When harmonic pollution is present calculation of the total apparent power involves 3 terms D Stot Ptot Qtot Dtot The distortion power D qualifies the energy loss due to the presence of harmonic pollution 90 LV434104 06 2008 The Metering Function Power Factor PF and Cos o Measurement Micrologic E Power Factor PF Cos o Power Factor PF and Cos When Harmonic Currents Are Present The Micrologic E
84. cal distribution application against overload currents It is identical for Micrologic 5 and 6 trip units Operating Long time protection is I t IDMT Principle It incorporates the thermal image function It can be configured as the Ir pick up and as the tr trip time delay Tripping curve 100 2503 0 t4 1 2 tr No Parameter Description 0 In Trip unit setting range The maximum setting corresponds to the trip unit In rating 1 Ir Long time protection pick up 2 tr Long time protection time delay Setting the Long The Ir pick up can be set as follows Time Protection On the Micrologic trip unit preset by the Ir dial and fine tuned on the keypad Via the communication option using the RSU software preset by the Ir dial on the Micrologic trip unit and fine tuned via the RSU software The time delay tr can be set as follows On the Micrologic trip unit set on the keypad Via the communication option using the RSU software 40 LV434104 06 2008 The Protection Function Ir Pick Up Setting Value tr Time Delay Setting Value Thermal Image The long time protection tripping range is 1 05 1 20 Ir according to standard IEC 60947 2 The default Ir pick up setting value is In maximum dial position The table below shows the Ir pick up value preset on the dial In Rating Preset Values of Ir A Depending on the Trip Uni
85. ctive power is calculated Qtot Qfundtot2 Dtot2 Qtot Qfundtot2 Dtot2 Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The total apparent power is calculated The total apparent power is calculated Stot Ptot2 Qtot Stot JPtot Qtot2 84 LV434104 06 2008 The Metering Function Energy Metering Micrologic E Presentation Principle of Energy Calculation Partial Energy Meters Energy Meters Selecting Energy Calculation The Micrologic E trip unit calculates the different types of energy by means of energy meters and provides the values of The active energy Ep the active energy supplied EpOut and the active energy consumed Epln The reactive energy Eq the reactive energy supplied EqOut and the reactive energy consumed EqIn The apparent energy Es The energy values are indicated as an hourly consumption These values are updated once a second The energy values are stored in non volatile memory once an hour Note When there is a weak current through the circuit breaker 15 to 50 A depending on the rating it is necessary to power the Micrologic E with an external 24 VDC power supply to calculate the energies See Micrologic Trip Unit Power Supply p 17 By definition Energy is the integration of the instantaneous power over a period
86. ctor temperature only depends on the l t energy provided by the current The limit temperature is an It IDMT curve For high overcurrents I Isd the phenomenon is identical if the l t ON function of the short time protection has been configured see Pt ON OFF Function p 44 The figure below in double log scales represents a heat rise curve A for an equilibrium temperature 0 and a trip curve B for the limit temperature OL ti A B gt 8 OL 1 Low intensity current zone 2 Low overcurrent zone Micrologic 5 and 6 trip units incorporate the thermal memory function which ensures that the conductors are cooled even after tripping cooling lasts for 20 minutes before or after tripping 42 LV434104 06 2008 The Protection Function Short Time Protection Presentation Short time protection on Micrologic 5 and 6 trip units is adapted to protecting all types of electrical distribution application against short circuit currents It is identical for Micrologic 5 and 6 trip units Operating Short time protection is definite time Principle It incorporates the possibility of an I t inverse time curve function It can be configured as the Isd pick up and the tsd trip time delay Tripping curve t 3 4 tsd No Parameter Description 1 Ir Long time protection pick up 3 Isd Short time protection pick up 4 tsd Short time protection time delay 5 lt Inverse time
87. curve function ON or OFF Setting the Short The Isd pick up can be set as follows Time Protection On the Micrologic trip unit preset by the Isd dial and fine tuned on the keypad Micrologic 5 Via the communication option using the RSU software preset by the Isd dial on the Micrologic trip unit and fine tuned via the RSU software The tsd time delay can be set as follows On the Micrologic trip unit set on the keypad Via the communication option using the RSU software The tsd time delay setting incorporates activation deactivation of the t option Setting the Short The Isd pick up and tsd time delay can be set as follows Time Protection On the Micrologic trip unit set on the keypad Micrologic 6 Via the communication option using the RSU software The tsd time delay setting incorporates activation deactivation of the t option LV434104 06 2008 43 The Protection Function Isd Pick Up Setting Value The Isd pick up setting value is expressed in multiples of Ir tsd Time Delay Setting Value I2t ON OFF Function The default Isd pick up setting value is 1 5 Ir minimum dial value The table below shows the setting values preset by a dial and setting ranges set on the keypad of the Isd pick up Type of Setting Value or Setting Range xlr Preset by a dial 1 5 2 3 4 5 6 Micrologic 5 Setting range on the keypad 1 1 5 1 5 2 1 5 3 1 5 4 11 5 5 1 5
88. e Ir and short time Isd protections Instantaneous protection is identical 100 250 0 10 Tripping curve No Parameter Description 0 In Trip unit setting range The maximum setting corresponds to the trip unit rating In 1 Ir Long time protection pick up 10 IN Neutral protection pick up 4 pole trip unit The IN pick up can be set as follows On the Micrologic trip unit using the keypad Via the communication option using the RSU software 3 pole trip unit Neutral declaration and the IN pick up can be set as follows On the Micrologic trip unit using the keypad Via the communication option using the RSU software LV434104 06 2008 49 The Protection Function Neutral Protection Setting Value Micrologic 5 and 6 trip units incorporate the OSN OverSized Neutral function which enables protection of the neutral conductor to be managed when third order harmonic currents and multiples thereof are present see Harmonic Currents p 87 The table below shows according to the value of the IN Ir parameter the setting values of the neutral long time protection and neutral short time protection pick ups IN Ir Parameter Long Time Pick Up Value Ir IN Short Time Pick Up Value Isd IN OFF N A N A 0 5 1 Ir 2 Isd 2 1 Ir Isd OSN 3 pole ENCT 1 6 x Ir 1 6 x Isd 4 pole 1 6 x Ir limited to In 1 6 x Isd limited to In x Isd
89. e Modifying the setting values when the circuit breaker is open e Displaying measurements when there is a low current through the circuit breaker 15 to 50 A depending on the rating when the circuit breaker is closed e Continuing to display the reason for the trip and the breaking current when the circuit breaker is open The external 24 VDC power supply is available to the Micrologic trip unit once it has been connected to another module in the ULP system Modbus communication interface module front display module FDM121 or maintenance module When the Micrologic trip unit is not connected to a ULP module it can be connected directly to an external 24 V DC power supply with the help of the optional 24 VDC supply terminal block reference LV434210 LV434104 06 2008 17 Using Micrologic Trip Units Navigation Principle Locking Unlocking the Protection Parameter Settings Mode Definition Mode Selection Screensaver The protection parameter settings are locked when the transparent cover is closed and sealed to prevent access to the adjustment dials and the locking unlocking microswitch A pictogram on the display indicates whether the protection parameter settings are locked Padlock locked amp The protection parameter settings are locked Padlock unlocked m The protection parameter settings are unlocked To unlock the protection parameter settings 1 Open the transparent cover 2 Press the
90. e metering screens in the V L L V L N sub menu The key can be used to modify the display mode and to switch to Bar Graph mode The ESC key is used to return to the Metering menu LV434104 06 2008 155 Operating Assistance Measurement The current voltage and power measurements can be displayed in 3 different ways using the context Display Modes sensitive key to switch from one display mode to another The icon represents Bar Graph mode display The X icon represents Dial Graph mode display The 888 icon represents numeric mode display Example The table below presents the 3 current display modes Numeric Mode Bar Graph Mode Dial Graph Mode o co EMEN S 100 120 1 431 A i Posen pe ve 100 120 I2 385 A 2 9 fi a 426 A 100 120 IN 2A I3 426 A gt uM 2A 100 120 IN 2 Al n 4 G ESC v ESC v A M ESC v A 888 Pressing the key switches the Pressing the X key switches the Pressing the 888 key switches the display to Bar Graph mode display to Dial Graph mode display to numeric mode 156 LV434104 06 2008 Operating Assistance Alarms Menu Presentation The Alarms menu is used to view the alarm history The alarm history contains the last 40 occurrence or completion of an alarm events One screen corresponds to one alarm event For more details on the real time display of
91. e s neutral or the ground 8 Phases 1 A 2 B 3 C neutral N and ground Display When the trip unit is powered by an external 24 V DC power supply the Micrologic trip unit display has Backlighting white backlighting that is Low intensity continuously High intensity for one minute after pressing one of the keys on the keypad The display backlighting is Deactivated if the temperature exceeds 65 C Reactivated once the temperature drops back below 60 C If the trip unit is powered by the pocket battery module the display unit is not backlit 16 LV434104 06 2008 Using Micrologic Trip Units Keypad Micrologic Trip Unit Power Supply The 5 button keypad is used for navigation Key Description Selecting the mode Scrolling navigation Navigation back metering or setting the protection parameters Navigation forward metering or setting the protection parameters 00000 Confirmation The Micrologic trip unit is powered with its own current in order to guarantee the protection functions If there is no optional external 24 VDC power supply the Micrologic trip unit only works when the circuit breaker is closed When the circuit breaker is open or the through current is low 15 to 50A depending on the rating the Micrologic trip unit is no longer powered and its display switches off An external 24 VDC power supply for the Micrologic trip unit is optional for
92. e to a setting mode and vice versa The Micrologic display automatically reverts to a screensaver n padlock locked mode 20 seconds after the last action on the keypad In padlock unlocked mode 5 minutes after the last action on the keypad or dials The screensaver displays the current intensity of the most heavily loaded phase Instantaneous measurement readout mode 18 LV434104 06 2008 Using Micrologic Trip Units Readout Mode Measurement Readout Example of Measurement Readout Micrologic E A measurement is read using the P and keys e The 29 keys are used to select the measurement to be displayed on screen The associated navigation arrows indicate the navigation options Oo Possible to press the key d Possible to press the P key EE Possible to press one of the 2 UP keys For the current and voltage measured quantities the navigation key can be used to select the metering screen for each of the phases The down arrow indicates the phase relating to the measurement value displayed Examples Quantity measured on phase 2 R SSSI Quantity measured on all 3 phases N a ag 3c L Press the key successively to scroll through the metering screens Scrolling is cyclical The table below gives the readout values of the 3 phase currents the phase to phase voltage V12 and the total active power Ptot Step Action Using Dis
93. e very low rms values and can therefore be ignored 88 LV434104 06 2008 The Metering Function Metering Energy Quality Indicators Micrologic E Presentation Current THD The Micrologic E trip unit provides via the communication network the measurements and quality indicators required for energy management Reactive power measurement 1 Power factor PF 1 cos o 1 Total harmonic distortion THD Distortion power measurement 1 For more information see Power Metering Micrologic E p 80 and Energy Metering Micrologic E p 85 The energy quality indicators take account of Reactive energy management cos metering to optimize the size of the equipment and or avoid peak tariffs Management of harmonics to avoid degradation and malfunctions during operation These measurements and indicators can be used to implement corrective actions in order to conserve an optimum level of energy quality The current THD is defined by standard IEC 61000 2 2 It is expressed as a of the rms value of harmonic currents greater than 1 in relation to the rms value of the fundamental current order 1 The Micrologic E trip unit calculates the total harmonic current distortion THD up to the 15th harmonic 15 2 5 larms 2 THD L 1 lirms ie The current THD can be higher than 100 The total harmonic distortion THD I can be used to assess the deform
94. eaker Q1 which remains set on its time delay tsd Circuit breaker Q2 trips and eliminates the fault instantaneously if circuit breaker Q2 is not delayed The other users downstream of circuit breaker Q1 are still supplied with power the energy availability is optimized n the event of a fault downstream of circuit breaker Q1 diagram 4 the trip unit on circuit breaker Q1 does not receive a signal from the trip unit on circuit breaker Q2 Time delay tsd is therefore inhibited Circuit breaker Q1 trips and eliminates the fault on the equipment instantaneously The electrodynamic stress created by the short circuit current on the equipment is reduced to the minimum The ZSI function can be used to optimize the availability of energy just like time discrimination and reduce electrodynamic stress on the equipment The ZSI function is applicable to both short time and ground fault protection LV434104 06 2008 51 The Protection Function Using the ZSI Function with Compact NSX Description The Micrologic 5 and 6 trip units are designed to support the ZSI function The figure below explains how the pilot wire is connected to the trip unit Q1 Q3 Z1 Z2 Z30 K z1 x me 2 Z44 No uM RS Z2 Za ah y y N Z3 Z5 Q1 Upstream circuit breaker Q2 Circuit breaker to be wired Q3 Downstream circuit breaker Z1 ZSI OUT source Z2 ZSI OUT Z3 ZSL
95. ection pick up 2 Time discrimination which corresponds to staging of the short time protection pick up 3 Energy discrimination which corresponds to staging of the circuit breaker energy levels this applies for very high intensity short circuit currents t4 ya2 at i The discrimination rules depend on The type of trip unit on the circuit breakers installed upstream and downstream electronic or thermal magnetic The accuracy of the settings LV434104 06 2008 37 The Protection Function Discrimination of Overload Protection Ground Fault Protection Discrimination Discrimination Limit Discrimination Table For overload protection the discrimination rules between electronic trip units are as follows 1 Current discrimination e Aratio of 1 5 between the Ir pick up for long time protection of the trip unit on the upstream circuit breaker Q1 and that of the trip unit on the downstream circuit breaker Q2 is usually sufficient e The tr time delay for long time protection of the trip unit on the upstream circuit breaker Q1 is identical or higher than that of the trip unit on the downstream circuit breaker Q2 2 Time discrimination e A ratio of 1 3 between the Isd pick up for short time protection of the trip unit on the upstream circuit breaker Q1 and that of the trip unit on the downstream circuit breaker Q2 is usually sufficient e The tsd time delay for short time protection of the trip uni
96. er Ig Ground fault protection pick up value A The up arrow indicates the Ig parameter The down arrows indicate the 3 phases tg Ground fault protection time delay value S The up arrow indicates OFF is always indicated the l t inverse time curve protection function is not available on Micrologic 6 E M trip units the tg parameter LV434104 06 2008 33 Using Micrologic Trip Units Micrologic 6 E M LSIG Protection Parameter Setting Screens Mode Description of Screens Unit Up Down Arrows GAA Ir Long time protection pick up setting for the 3 phases A The up arrow indicates an Preset by a dial the Ir parameter The down arrows indicate the 3 phases CI Selection of the long time protection trip class S The up arrow indicates the Cl parameter Y Choice of type of ventilation The up arrow indicates Auto Natural ventilation by the motor active the Y parameter Moto Forced ventilation by a dedicated motor active Isd Short time protection pick up setting for the 3 Isd Ir The up arrow indicates phases the Isd parameter The down arrows indicate the 3 phases lunbal Phase unbalance protection pick up setting 96 The up arrow indicates expressed as a of the average motor current the lunbal parameter The down arrows indicate the 3 phases tunbal Phase unbalance protection time delay setting S The up arrow indicates the tunbal pa
97. er Setting Screens O A Ir Long time protection pick up setting for the phases A The up arrow indicates Preset by a dial the Ir parameter The down arrows indicate the 3 phases tr Long time protection time delay setting S The up arrow indicates the tr parameter Isd Short time protection pick up setting for the phases Isd Ir The up arrow indicates the Isd parameter The down arrows indicate the 3 phases tsd Short time protection time delay setting S The up arrow indicates Activation of the I t inverse time curve short time the tsd parameter protection ON I t inverse time curve active OFF f t inverse time curve not active IN Protection pick up setting for the neutral 4 pole or IN Ir The down arrow indicates 3 pole trip unit with ENCT option and neutral protection the neutral active li Instantaneous protection pick up value setting forthe li In The up arrow indicates phases and for the neutral 4 pole or 3 pole trip unit with the li parameter ENCT option and neutral protection active The down arrows indicate the 3 phases Ig Ground fault protection pick up setting Ig In The up arrow indicates Preset by a dial the lg parameter The down arrows indicate the 3 phases tg Ground fault protection time delay setting S The up arrow indicates Activation of the I t inverse time curve ground fault the tg parameter protection ON ft inverse time curve active OFF f t inverse time curve not active I P Activation
98. er equipped with a Micrologic 6 0 H trip unit A PM850 power meter A Compact NSX160 circuit breaker equipped with a Micrologic 6 2 E M trip unit and a display module FDM121 A Compact NSX400 circuit breaker with communicating motor mechanism and equipped with a Micrologic 6 3 E trip unit An Advantys OTB interface module connected to the OF contacts of non communicating circuit breakers Ethernet TCP IP G a wd rH j Advantys OTB 2 i ce ULP NP net L Masterpact NW20 IT FDM121 4 gt SO 2 Ir zm 2 Le e by eo ae Lr i Compact NSX160 Compact NSX400 LV434104 06 2008 163 Operating Assistance RCU Software The RCU software includes the following functions available depending on which devices are Functions connected Real time display of measurements e The currents for each phase e Voltages e Total powers e Energies Real time display of quality indicators e The power factor PF e The total harmonic distortion for both current and voltage Real time display of maintenance indicators Real time display of circuit breaker open closed trip status Viewing histories trips alarms maintenance operations Open close command for circuit breakers with motor mechanism Reset meters and minimum and maximum values command Command functions are protected by a password Example of RCU The figure below illustrates the current metering screen for a Compact NSX circuit b
99. er lunbal phase 1 9 5 60 lavg 1 3000 s 25 40s 10s Over lunbal phase 2 10 5 60 lavg 1 3000 s 25 40s 10s Over lunbal phase 3 11 5 60 lavg 1 3000 s 25 40s 10s Over Voltage V1N 12 100 1100 V 1 3000 s 300 V 40 s 10s Over Voltage V2N 13 100 1100 V 1 3000 s 300 V 40 s 10s Over Voltage V3N 14 100 1100 V 1 3000 s 300 V 40 s 10s Under Voltage V1N 15 100 1100 V 1 3000 s 180V 40 s 10s Under Voltage V2N 16 100 1100 V 1 3000 s 180V 40 s 10s Under Voltage V3N 17 100 1100 V 1 3000 s 180 V 40s 10s Over Vunbal V1N 18 2 30 Vavg 1 3000 s 1096 40 s 10s Over Vunbal V2N 19 2 30 Vavg 1 3000 s 1096 40 s 10s Over Vunbal V3N 20 2 30 Vavg 1 3000 s 1096 40 s 10s Over total KVA 21 1 1000 kVA 1 3000 s 100 kVA 40s 10s Over direct KW 22 1 1000 kW 1 3000 s 100 kw 40 s 10s Reverse power KW 23 1 1000 kW 1 3000 s 100 kW 40s 10s Over direct KVAr 24 1 1000 kvar 1 3000 s 100 kvar 40s 10s Reverse power KVAr 25 1 1000 kvar 1 3000 s 100 kvar 40s 10s Under total KVA 26 1 1000 kVA 1 3000 s 100 kVA 40s 10s Under direct KW 27 1 1000 kW 1 3000 s 100 kw 40s 10s Under direct KVAr 29 1 1000 kvar 1 3000 s 100 kvar 40s 10s Leading PF IEEE 1 31 0 0 99 1 3000 s 0 80 40s 10s Lead or Lag PF IEC 1 33 0 0 99 1 3000 s 0 80 40 s 10s Lagging PF IEEE 1 34 0 99 0 1 3000 s 0 80 40 s 10s Over THD Current I1 35 0 500 1 3000 s 1596 40 s 10s Over THD Current I2 36 0 500 1 3000 s 1596 40 s 10
100. erminals T1 and T2 of the Micrologic trip unit 4 Declare the ENCT option when setting the protection parameters for the Micrologic trip unit Note If the ENCT option is declared before its installation the Micrologic trip unit develops a fault Enct screen It is therefore mandatory to either install the ENCT option or to connect a jumper between terminals T1 and T2 on the Micrologic trip unit The Enct screen must be cleared by pressing the OK key 2 times validation and confirmation 50 LV434104 06 2008 The Protection Function ZSI Function Presentation Principle of the ZSI Function The ZSI Zone Selectivity Interlocking function is a technique used to reduce the electrodynamic stress on equipment when time discrimination is used The ZSI function improves time discrimination by being selective about the position of the fault A pilot wire links the installed circuit breaker trip units and can be used to manage the trip time delay for upstream circuit breaker Q1 according to the fault position The trip units on circuit breakers Q1 and Q2 have the same time delay settings as with time discrimination Diagram 3 Diagram 4 tsd tsd Q2 rA Q2 l n the event of a fault downstream of downstream circuit breaker Q2 diagram 3 the trip units on circuit breakers Q1 and Q2 detect the fault simultaneously via the pilot wire the trip unit on circuit breaker Q2 sends a signal to the trip unit on circuit br
101. es Micrologic 2 2 and 2 2 G electronic trip units Micrologic 2 2 40 160A Micrologic 2 2 250 A 4 E 40A ir 16 40A pei 5 100 A Ir 36 100A 2 000l 160A Ir 57 160A 2 000 1000 A 500 500 200 200 100 100 50 50 20 20 10 10 5 5 t s t s 2 2 isd 15 10 xir F 1 ul psal eee Be 2 2 1 1 05 05 02 02 01 01 005 005 I I pe a is 15xln e j 571 2 345 710 20 30 5070100 200300 571 2 345 7 10 20 30 5070100 200300 Har itr E Reflex tripping Micrologic 2 2 G 40 160A Micrologic 2 2G 250A P 410000 T 8 A 10000 E 40A 1r216 40A z z p 5o 100A 1 236 100A amp 5000 2000 J 160A Ir 57 160A 2 000 1000 1 000 500 500 200 200 100 100 sof 50 jit tt 20 20 Lui 10 10 T s Se 5 tis EFI t s 2 AN 2 1 14 5 5 2 2 Arr i g a 1 05 is a EREEREER i 05 rr ld Ot i HE 02 01 i rit 01 005 pot tt 005 ETTI Pe FIT d FI TIETITIT m ji 15xin y E 531 2 345 7 10 20 30 50 70100 200300 a i 2345 7 10 20 30 50 70100 200300 Mr M E Ht E Reflex tripping 174 LV434104 06 2008 Tripping and Limitation Curves Tripping Curves Micrologic 5 2 and 6 2 A or E electronic trip u
102. escribed For more information on all functions in particular configuring the BSCM module option the Modbus communication interface option and passwords see the RSU Software Online Help The different settings and data can be saved and printed LV434104 06 2008 121 The RSU Parameter Setting Software Setting the Protection Parameters Presentation Setting the Protection Parameters Presetting the Protection Parameters by a Dial The protection parameter settings can be accessed using the RSU software under the Basic prot tab default tab D Micrologic RSU C WhicrologicWItilityWRSU_AWata New rsa DE R De BRemetefunctoes Setup Uwe update Hep Mescloge tecten z Tipua Dertuten w Moac 626 6 fr mE x fec x Schneider Blectric paise ES Serice Im asie pa E Ama E Dupa E Dreskos 1 0 IA Irtertace m nd ti iy g IN 2904 09D 358A 35A 590A hows OFF idn G6h iS Adi ish d Adi The RSU software screen is exactly the same as the front face of the trip units the setting and navigation principles are identical to those described in the Headout Mode p 19 and Setting Mode p 23 chapters Note Access to the settings is only possible when the padlock is unlocked for more information on unlocking the padlock see Navigation Principle p 18 Note The 2 additional protections on the Micrologic 6 E M trip unit Under load and Long start ca
103. essed with the Mode key The StOP screen becomes the main screen Indication of D9 wnloading the Screen Cause Firmware E G E SEN The Micrologic trip unit is waiting for or in the process of l downloading the firmware using the RSU software duration 3 minutes approx The trip unit protections are still operational MEUS PESCE Access to measurements and settings via the Micrologic trip unit dials or keypad or via the communication option is interrupted If the boot message persists after several download attempts replace the Micrologic trip unit For more details on delivery of and downloading the firmware see Parameter Setting Using the RSU Software p 120 and the RSU Software Online Help LV434104 06 2008 139 Operating Assistance Examples of Using Alarms Presentation The choice of which quantity is to be monitored and the alarm parameter settings are made using the RSU software see Alarm Setup p 126 Alarms on Alarms on superiority condition are dedicated to monitoring Superiority Overvoltages Condition Phase unbalance Micrologic 6 E M Overcurrents Overfrequencies Current unbalance Power overruns Total harmonic distortion THD overruns The value of the drop out threshold must always be lower than the pick up threshold Example Setting the overvoltage monitoring parameters code 79 see Detailed Tables of Alarms p 112 using the RSU s
104. etup Uveupdste Liep Nioniogc neliection Tripura Drood Nig 626 P h s Pm vasiSe e Schneider d Bectric E Seevce DI Gene grt REB Alms EE usos IE Breaker o IF intertace Alem detignation WM Code Pry Pu vel Ure Pu dy Do val Unt 00 dy Aey 4 Pre Algen MPAL h fel 1013 M 30 5 0 5 Pre Alam IPAL Igi PALig 1014 M 0 1 mo 1 Nore 0 Nora i Nore i hore 2 Nore Nore N Nore None None 1 Alarms already activated and set up 2 List of possible alarm assignments 3 Alarm parameters Step Action Select none for a free assignment for example the first available line Double click on none the Alarm setup selection and setting screen appears see below Select the alarm to be activated from the dropdown list in the Alarm setup screen alol Once the alarm has been selected there are 2 possible options The default parameter setting is correct Click on OK the alarm is activated in the dropdown list of assignments with the default parameters The default parameter setting needs to be modified Set the alarm parameters Alarm Setup Alarm setup screen Screen Sotmcted aterm Nore t NE l 2 Come 56 Pronty Medun 5 s M Drop t 4 vse A 250 HH vu 20 FR delay 60 zz day ca 15 adi OK Cancel 1 Alarm name 2 Alarm code 3 Activation parameters pick up
105. f the alarm on a superiority condition is determined using 2 thresholds and 2 time delays The figure below illustrates activation of an alarm on a superiority condition SA SD SA Pick up threshold TA Pick up time delay SD Drop out threshold TD Drop out time delay 1 Alarm pick up zone in green Activation of the alarm on an inferiority condition is determined according to the same principle The figure below illustrates activation of an alarm on an inferiority condition SA Pick up threshold TA Pick up time delay SD Drop out threshold TD Drop out time delay 1 Alarm pick up zone in green The alarm is activated when the associated monitored quantity equals the pick up threshold The alarm is deactivated when the associated monitored quantity is different from the pick up threshold Alarm activation is determined using the pick up drop out thresholds The figure below illustrates activation of an alarm on an equality condition monitoring of quadrant 4 Quadrant 4 SA Pick up threshold SD Drop out thresholds 1 Quadrant 4 alarm pick up zone in green LV434104 06 2008 109 Alarms Management of The alarm time delays are managed by 2 counters that are normally at 0 Time Delays For the pick up threshold the time delay counter is Superiority or Incremented when the activation condition is fulfilled I
106. f the total harmonic phase to phase voltage THD V12 MIN L L THD V23 MIN L L THD V31 MIN L L and phase to neutral voltage THD V1N MIN L N THD V2N MIN L N THD V3N MIN L N distortion 1 Frequency measurement Hz 15 440 Hz 0 2 45 65 Hz Maximum frequency Minimum frequency 1 THD V1N THD V2N THD V3N with 4 pole or 3 pole trip unit with ENVT option 102 LV434104 06 2008 The Metering Function Motor Thermal Image Micrologic 6 E M The accuracy range is indicated for Micrologic trip unit operation in the current range 0 2 In 1 2 In Measurement Unit Measurement Accuracy Accuracy Range Range Motor thermal image measurements Ir 0 100 1 0 100 Maximum value of the motor thermal image Minimum value of the motor thermal image LV434104 06 2008 103 The Metering Function Micrologic E Demand Value Measurements Current Demand and Peak Values Power Demand and Peak Values Measurement Unit Measurement Accuracy Accuracy Range Range Phase l1 I2 I3 and neutral IN current demand values A 0 20 In 1 5 0 2 1 2 In Phase I1 I2 I3 and neutral IN peak current values IN with 4 pole or 3 pole trip unit with ENCT option The accuracy range is indicated for Micrologic trip unit operation In the current range 0 1 1 2 In
107. g the thermal demand but this model takes account of the iron and copper losses The figure below represents the limit curves for the iron and copper components calculated by the Micrologic 6 E M trip unit for class 20 Ws 100004 A B 1000 100 10 Ir 0 xlr A Limit temperature curve for copper B Limit temperature curve for iron C Tripping curve low envelope 60 LV434104 06 2008 The Protection Function Thermal Memory Cooling Fan Micrologic 6 E M trip units incorporate a thermal memory which ensures that the conductors are cooled even after tripping cooling lasts for 20 minutes before or after tripping By default the motor s thermal image is calculated taking account of the fact that the motor is self cooled fan mounted on the shaft end If the motor is force cooled forced ventilation the calculation of the thermal image takes account of the shortest time constants for the cooling calculation The cooling ventilation parameters Auto or moto position are set on the Micrologic trip unit keypad or using the RSU software LV434104 06 2008 61 The Protection Function Short Time Protection Presentation Short time protection on Micrologic 6 E M trip units is adapted to protecting all types of motor application against short circuit currents Operating Short time protection is definite time It can be configured as the Isd pick
108. gic E 91 74 LV434104 06 2008 The Metering Function Real Time Measurements Instantaneous Values Measuring the Neutral Current Measuring the Phase to Neutral Voltages Calculating the Average Current and Average Voltage Micrologic A and E trip units Measure the following in real time and as an rms value e Instantaneous current for each phase and the neutral if present e Ground fault current Micrologic 6 Calculate the average phase current in real time Determine the maximum and minimum values for these electrical quantities Micrologic E trip units Measure the instantaneous phase to phase and phase to neutral voltage if present in real time and as an rms value Calculate the associated electrical quantities from the rms values of the currents and voltages such as Average phase to phase voltage and phase to neutral voltage if present Current unbalances Phase to phase voltage unbalances and phase to neutral voltage unbalances if present Powers see Power Metering Micrologic E p 80 Quality indicators frequency THD I and THD V see Metering Energy Quality Indicators Micrologic E p 89 and Power Factor PF and Cos o Measurement Micrologic E p 91 e Operating indicators quadrants phase rotation and type of load Determine the maximum and minimum values for these electrical quantities Increment in real time 3 energy meters active reactive ap
109. gnificant may result in Malfunctions or degraded operation in the powered devices Unwanted heat rises in the devices and conductors Excessive power consumption These various problems naturally result in additional installation and operating costs It is therefore necessary to control the energy quality carefully A periodic signal is a superimposition of Harmonic The original sinusoidal signal at the fundamental frequency for example 50 Hz or 60 Hz Sinusoidal signals whose frequencies are multiples of the fundamental frequency called harmonics Any DC component This periodic signal is broken down into a sum of terms y t Yo Y y4 2 xsin not 1 where yo Value of the DC component y Rms value of the nth harmonic o Pulsing of the fundamental frequency p Phase displacement of harmonic component n Note The DC component is usually very low even upstream of rectifier bridges and can be deemed to be zero Note The first harmonic is called the fundamental original signal Example of a current wave distorted by harmonic currents H5 250 Hz DAA AAAA 4 1 Irms Rms value of the total current 2 11 Fundamental current 3 13 Third order harmonic current 4 5 Fifth order harmonic current LV434104 06 2008 87 The Metering Function RMS Currents and Voltages Acceptable Harmonic Levels Micrologic E trip units display the rm
110. he maintenance counters embedded in the Micrologic trip unit can be accessed by the communication Unit Counters option Counters are assigned to each type of protection e Long time protection Short time protection Instantaneous protection Ground fault protection Jam motor protection Phase unbalance protection Long start motor protection e Underload motor protection 10 counters are assigned to the alarms associated with measurements These counters are reset if the alarm is reconfigured One counter indicates the number of operating hours This counter is updated every 24 hours 4 counters are assigned to the load profile Each counter counts up the number of operating hours per loading section for example one counter indicates the number of operating hours for the loading section 50 79 of In 6 counters are assigned to the temperature profile Each counter counts up the number of operating hours per temperature section for example one counter indicates the number of operating hours for the temperature section 60 74 C Maintenance counters are used to enter quantitative information about operations performed on the Micrologic trip unit for example number of push to trip tests etc or the status of the Micrologic trip units for example number of Err screens number of protection parameter setting lock unlock operations etc One counter indicates the amount of wear on the circuit breaker contac
111. he thermal state of the conductors to be monitored precisely Example Comparison of the heat rise calculation without thermal image diagram A and with thermal image diagram B A 0 1 3 2 0 Instantaneous current cyclical in the load 1 Conductor temperature 2 Current calculated without thermal image diagram A with thermal image diagram B 3 Long time protection pick up Ir Trip unit without thermal image On each current pulse the trip unit only takes account of the thermal effect on the pulse under consideration No tripping occurs despite the build up in conductor heat rise Trip unit with thermal image The trip unit adds together the thermal effect of successive current pulses Tripping intervenes to take account of the actual thermal state of the conductor LV434104 06 2008 41 The Protection Function Conductor Heat Rise and Tripping Curves Thermal Memory Analysis of the equation of heat rise in a conductor through which a current runs can be used to determine the nature of physical phenomena For low or medium intensity currents I Ir the conductor equilibrium temperature for an infinite time only depends on the current quadratic demand value see Quadratic Demand Value Thermal Image p 79 The limit temperature corresponds to a limit current Ir pick up for trip unit long time protection For low overcurrents Ir lt lt Isd the condu
112. ic Display lle 135 Examples of Using Alarms 6 xara EW eae a Rhee toa UNSER eui doe aie doe id 140 Alarm Monitoring of the Cos o and Power Factor 0 0 0 cece eee ee 141 FDM121 Switchboard Display Unit orse e nea a a a eu a A E a Ee 143 The UEP Systems nie e uM hee a a E E Rede pte cte ege a aE 144 Description of the Front Display Module FDM121 seeeleeeee IA 147 Alarm Processing oerte ai aed VE PEREAT AV NEWER Eee etna de ea ee DR a 150 Main Menu ume ee TDI ER DRM eI ede LE I 151 Quick View Men uota Seek tg ER der qe deu dete E e dede teg eden e ded eta 152 Metering Menu come PEE dah ne ee EISE eae eee ees Gh ER due eren 155 Alarms Ment 5 cire ERROREM ENSE brats Det aerate ths Mien EE d 157 Services MENUS t ho oust oa len aida oe el Sy oe lode dee hahha ede Ade deed 159 RCU Operating Software ens s Se ap Gig Sis pee bce Geom ie poe ood ERE a EA EET NA EEG ARR 163 Description of the RCU Software m 163 The Communication Network 0 0 00 0 cette 165 Compact NSX Circuit Breaker Communication llle 166 History and Time Stamped Information liliis 167 Maintenance Indicators siiras era a a a p A a RR m m mI rn 168 sie Ree ty tt ae ad ati udo pat Se ak A CFL NL esrb es E ree 169 Additional Characteristics 0 000 e cece eee eee eee 171 Compact NSX100 to 250 Distribution Protection 00 cece eee eee 172 Compact NSX100 to 250 Motor Feeder Protection
113. imination performed irrespective of the value of the short circuit current Schneider Electric provides discrimination tables showing the type of discrimination partial or total between each circuit breaker for its entire range of circuit breakers see the Compact NSX 100 630 A Catalogue These coordinations are tested in accordance with the recommendations of standard IEC 60947 2 38 LV434104 06 2008 The Protection Function Protection Functions Setting the Protection Integrated Instantaneous Protection Reflex Protection The figure and table below define the protection functions for Micrologic 5 and 6 Each function is reviewed in detail on the following pages 100 2503 0 100 250A Poo zol 140 89175 lt Ir tr isd tsd li xIn Q O w 125 2005 g pcm ees A 1007 aso E gt a eos ia 2D E N YA 2B 3C 4 eo O CO 1 Micrologic gt No Parameter Description Micrologic 5 6 0 In Trip unit setting range Minimum setting maximum setting trip unit Ci oi In rating 1 Ir Long time protection pick up L m B 2 tr Long time protection time delay a 3 Isd Short time protection pick up Sm a 4 tsd Short time protection time delay a a 5 lt ON OFF Short time protection I t curve in ON or OFF position a a 6 li Instantaneous protection pick up ms B 7 lg Ground fault protection pick
114. intenance alarms OF operation overrun counter threshold and Close command overrun threshold can be modified using the RSU software under the Breaker I O tab Each alarm is given a priority level High priority Medium priority For more details on the use of priority levels see Alarm Processing p 150 LV434104 06 2008 111 Alarms Detailed Tables of Alarms Pre Alarms User Defined Alarms Micrologic A By default these alarms are active and are medium priority Label Code Setting Range Default Setting Thresholds Pick Up Time Delay Thresholds Time Delay or Drop Out Pick Up Drop Out Pick Up Drop Out Pre Alarm Ir PAL Ir 1013 40 100 Ir 1s 90 Ir 85 Ir 1s 1s Pre Alarm Ig PAL Ig 1014 40 100 Ig 1s 90 lg 85 Ig 1s 1s Micrologic 6 trip unit By default user defined alarms are not active and are medium priority Label Code Setting Range Default Setting Thresholds Pick Up Time Delay Thresholds Time Delay or Drop Out Pick Up Drop Out Over Current inst I1 1 0 2 10 In 1 3000 s In 40s 10s Over Current inst I2 2 0 2 10 In 1 3000 s In 40s 10s Over Current inst I3 3 0 2 10 In 1 3000 s In 40s 10s Over Current inst IN 4 0 2 10 In 1 3000 s In 40s 10s Ground Fault alarm 5 10 100 Ig 1 3000 s 40 Ig 40s 10s Micrologic 6 trip unit Under Current i
115. ion 48 ZSI Function 51 Using the ZSI Function with Compact NSX 52 36 LV434104 06 2008 The Protection Function Electrical Distribution Protection Presentation Description Discrimination Between Devices Discrimination Rules Micrologic 5 and 6 trip units on Compact NSX circuit breakers provide protection against overcurrents and ground fault currents for all types of commercial or industrial application Micrologic 5 and 6 trip units offer protection characteristics that comply with the requirements of standard IEC 60947 2 see the Compact NSX circuit breakers User manual The installation rules closely define the protection characteristics to be used taking account of Overcurrents overloads and short circuits and potential ground fault currents Conductors to be protected The presence of harmonic currents Coordination between the devices Micrologic 5 and 6 trip units are designed to satisfy all these requirements Coordination between the upstream and downstream devices especially discrimination is essential to optimize continuity of service The large number of options for setting the protection parameters on Micrologic 5 and 6 trip units improves the natural coordination between Compact NSX circuit breakers see the Compact NSX 100 630 A Catalogue 3 discrimination techniques can be used 1 Current discrimination which corresponds to staging of the long time prot
116. ip The trip unit installed on the circuit breaker is identified by a combination of 4 characters on the front face Micrologic 6 3 E M X Y Z T Identification on Micrologic electronic trip units Protection X Case Y Measurements Z Application T M v v v 1 l 2 Compact NSX 100 A Ammeter Distribution 2 LS 160 250 E Energy G Generator 5 LSI 3 Compact NSX 400 AB Subscriber 6 LSIG 630 Motor Z 16Hz2 3 Examples Micrologic 1 3 M 400 or 630 A Motor Micrologic 2 2 G LSo 100 160 or 250A Generator Micrologic 2 3 LSo 400 or 630 A Distribution Micrologic 2 3 M LSo 400 or 630 A Motor Micrologic 5 2 A LSI 100 160 or 250A Ammeter Distribution Micrologic 5 3 E LSI 400 or 630 A Energy Distribution Micrologic 6 3 E M LSIG 400 or 630 A Energy Motor Definition of LSIG Parameters l Instantaneous L Long time So Short time fixed time delay S Short time G Ground The In rating in amps of a Micrologic trip unit corresponds to the trip unit setting range maximum value The setting range is indicated on the label on the front face of the trip unit this label is visible on the front Units face of the Compact NSX circuit breaker after the trip unit has been fitted Example Micrologic 5 2 A 250 trip unit Setting range 100 250 A In rating 250A 12 LV434104 06 2008 Using Micrologic Trip Units Integrating Micrologic Trip Units on the Compact NSX
117. is J2sin not and n 1 15 Vint Y VinnV2sin not and n 1 15 i t li 2sin not 9 and n 1 where i j 1 2 3 phase 3 pole or 4 pole trip unit with ENVT option Using this data the Micrologic E trip unit calculates the various power ratings according to the sequence described below Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The active power for each phase and total active power is calculated Only the total active power can be calculated 15 P 1 fuji tat Y Vinlinc0S Vin lin T n 1 where i 1 2 3 phase Ptot P4 P P3 Ptot Pw1 Pw2 Pw1 and Pw2 are the fictional active powers calculated by the 2 wattmeter method Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The apparent power is calculated for each phase S V 1 where i 1 2 3 phase Reactive power with harmonics is not physically significant Metering on a 3 Pole or 4 Pole Circuit Breaker With ENVT Option Metering on a 3 Pole Circuit Breaker Without ENVT Option The reactive power with harmonics is calculated for each phase Q S P where i 1 2 3 phase LV434104 06 2008 83 The Metering Function Reactive Powers Distortion Power Total Reactive
118. ive powers for each phase Q1 MAX Q2 MAX Q3 MAX Minimum values of reactive powers for each phase Q1 MIN Q2 MIN Q3 MIN Total reactive power measurement Qtot kvar 3000 3000 kvar 2 3000 3 kvar Maximum value of total reactive power Qtot MAX 3 3000 kvar Minimum value of total reactive power Qtot MIN Only with 4 pole or 3 pole trip unit with ENVT option kVA 1000 1000 kVA 2 1000 1 kVA Apparent power measurements for each phase S1 1 1000 kVA S2 S3 Maximum values of apparent powers for each phase S1 MAX S2 MAX S3 MAX Minimum values of apparent powers for each phase S1 MIN S2 MIN S3 MIN Total apparent power measurement Stot kVA 3000 3000 kVA 2 3000 3 KVA Maximum value of total apparent power Stot MAX 3 3000 kVA Minimum value of total apparent power Stot MIN Only with 4 pole or 3 pole trip unit with ENVT option kvar 1000 1000 kvar 2 1000 1 kvar Fundamental reactive power measurements for each 1 1000 kvar phase Qfund1 Qfund2 Qfund3 1 Maximum values of fundamental reactive powers for each phase Qfund1 MAX Qfund2 MAX Qfund3 MAX Minimum values of fundamental reactive powers for each phase Qfund1 MIN Qfund2 MIN Qfund3 MIN 100 LV434104 06 2008 The Metering Function Measurement Unit Measurement Accuracy Accuracy Range Range Total fundamental reactive power measurement kvar 3
119. key for clearing the alarm pop up screen displayed ONO hWND 150 LV434104 06 2008 Operating Assistance Main Menu Presentation The Main menu offers 4 me System intelligent functional NSX circuit breakers Main menu nus containing the information required for monitoring and using the ULP units The description and content of the menus is set out for the Compact OJ Quick view X Metering A Alarms Services ESC W_ OK A The 4 menus offered in the Main menu are as follows Menu Description ET Quick view Quick View menu The Quick View menu provides quick access to the information essential for operation as Metering menu The Metering menu displays the data made available by the Micrologic trip unit see List of Metering Screens p 27 Current voltage power energy and harmonic distortion measurements Minimum and maximum measurement values ECCE Alarms menu The Alarms menu displays the alarm history of the last 40 alarms detected by the Micrologic trip unit see Detailed Tables of Alarms p 112 and Alarms on a Trip Failure and Maintenance Event p 111 c RIS Services menu The Services menu contains all the FDM121 display module set up functions and the operating assistance information Reset peak demand values energy meters Set up display module Maintenance operation counters load profile etc
120. lack of ENCT option It is therefore mandatory to Ir tr isd tsd li xin either install the ENCT option or to connect a jumper between terminals T1 and T2 on the Micrologic trip unit N WA 2 B 3 C 136 LV434104 06 2008 Operating Assistance Indication of Faults With Micrologic 6 E M For more information on definitions of the fault protections associated with indications see Protection for Motor Feeders p 55 Screen Cause Ir Cl 8 Isd lunbal tunbal Ijam tjam N 1 A 2 B 3IC Tripped by long time protection Up arrow pointing to Ir triP displayed 1 Peak breaking current Isd Ir Cl Isd lunbal tunbal ljam tjam N 1 A 2 B 3 0 Tripped by short time protection Up arrow pointing to Isd breaking value displayed Ir Cl 8 Isd lunbal tunbal ljam tjam N 1 A 2 B 3 0 Tripped by instantaneous protection or reflex protection Inst displayed Ir Cl 8 Isd lunbal tunbal jam tjam N 1 A 2 B 3IC Tripped by ground fault protection Up arrow pointing to lg triP displayed Ir Cl e isd lunbal tunbal Ijam tjam lg tg N 1 A 2 B 3 C Tripped by unbalance protection Up arrow pointing to lunbal triP displayed 1 Ir Cl 8 Isd lunbal tunbal ljam tjam N 1 A 2 B 3IC Tripped by jam motor protection Up arrow pointing to ljam triP displayed 1 Ir Cl Isd lunbal tunbal ljam tjam N 1 A 2 B 3IC Tripped by underload protection
121. locking unlocking microswitch or turn one of the adjustment dials To lock the protection parameter settings press the unlocking microswitch again The protection parameter settings also lock automatically 5 minutes after pressing a key on the keypad or turning one of the dials on the Micrologic trip unit The information that can be accessed on the Micrologic display is split between different modes The modes that can be accessed depend on Whether the protection parameter settings are locked The Micrologic trip unit version 3 pole or 4 pole A mode is defined by a combination of 5 pictograms The tables below show all the possible modes Pictograms Mode Accessible With Padlock Locked o fay Instantaneous measurement readout Kilowatt hour meter readout and reset v Peak demand readout and reset Max Reset Ok o0 B Protection parameter readout Voe 2 Neutral declaration readout 3 pole Micrologic trip unit Pictograms Mode Accessible With Padlock Unlocked a vo w instantaneous measurement readout Kilowatt hour meter readout and reset DUK d Peak demand readout and reset Max Reset Ok OAA Protection parameter setting Da AD Neutral declaration setting 3 pole Micrologic trip unit A mode is selected by successive presses on the button The modes scroll cyclically The unlocking locking microswitch is pressed to switch from a readout mod
122. lue tund Time Delay Setting Value Underload motor protection provides additional protection for detection of motor no load operation Examples of no load operation pump running dry broken drive belt broken geared motor etc Underload motor protection compares the value of the phase current minimum MIN with the setting value of the protection lund pick up If the current value MIN falls below the lund pick up the protection tund time delay is actuated By default underload motor protection is not active After parameter setting underload protection is activated during startup and in steady state The figures below illustrate the operating possibilities l Diagram I l Diagram II 1 Motor current 2 Supervision by underload motor protection White Not active Green Active Diagram I The phase current minimum value MIN does not go above the protection lund pick up before the end of the tund time delay for example a pump operating at no load Underload motor protection trips e A Protection activated change to steady state e B Activation of protection time delay as soon as the pick up threshold is crossed e C Protection tripped at the end of the time delay Diagram II The phase current minimum value MIN goes back and stays above the pick up before the end of the tund time delay for example a pump temporarily running dry The underload motor protection does not trip e B Activation of protection
123. ly of the Ir pick up setting Pre alarm Exceeding the pre alarm threshold at 90 of Ir has no effect on activation of the long time protection Alarm Crossing the alarm threshold at 105 of Ir indicates that the long time protection see Long Time Protection p 40 has been activated with a trip time delay that depends on e The value of the current in the load e The setting of the time delay tr Note If the pre alarm and alarm LEDs keep lighting up it is advisable to carry out load shedding in order to avoid tripping due to a circuit breaker overload The figure below illustrates the information supplied by the LEDs lA 105 Ir 90 Ir gt t 1 Current in the load most heavily loaded phase 2 Thermal image calculated by the trip unit The alarm indication red LED is tripped as soon as the value of the motor thermal image exceeds 95 of the Ir pick up setting Crossing the threshold of 95 of Ir is a temperature alarm long time protection is not activated The figure below illustrates the information supplied by the LED 95 Ir 1 Current in the load 2 Thermal image calculated by the trip unit 134 LV434104 06 2008 Operating Assistance Indication on the Micrologic Display Presentation Stacking Screens Indication of Correct Installation Operation Alarm Indication Indication screens inform the user about the status of the installation Maintena
124. me delay cannot be adjusted and equals 0 7 s n steady state the setting range is 1 10 s The step is 1 s The default time delay setting value is 4 s LV434104 06 2008 67 The Protection Function Jam Motor Protection Presentation Description Operating Principle Setting the Protection ljam Pick Up Setting Value tjam Time Delay Setting Value Jam motor protection provides additional protection in order to Detect overtorque Monitor mechanical failure Detect malfunctions more quickly on machines for which the motor is oversized Examples of machines with a significant risk of jamming conveyors crushers and kneaders fans pumps and compressors etc Jam motor protection compares the value of the average motor current lavg with the setting value of the protection ljam pick up If the average motor current lavg exceeds the ljam pick up the protection tjam time delay is actuated By default jam motor protection is not active After parameter setting jam motor protection is Active in steady state Disabled during startup The figures below illustrate the operating possibilities Diagram I E Diagram II 1 Motor current 2 Monitoring by jam motor protection White Not active startup Green Active steady state Diagram I The average motor current lavg does not fall back below the protection ljam pick up before the end of the tjam time delay jam
125. med motor Jam motor protection trips e A Protection activated change to steady state e B Activation of protection time delay as soon as the pick up threshold is crossed e C Protection tripped at the end of the time delay Diagram II The average motor current lavg falls back and stays below the protection ljam pick up before the end of the tjam time delay occasional overload Jam motor protection does not trip e B Activation of protection time delay as soon as the pick up threshold is crossed e D Protection disabled Note The SDTAM module early tripping protection function can be used to command contactor opening see SDTAM Module Option p 57 The ljam pick up and the tjam time delay can be set as follows On the Micrologic trip unit set on the keypad Via the communication option using the RSU software The ljam pick up setting value is expressed in multiples of Ir The pick up setting range on the keypad is 1 8 Ir The step is 0 1 Ir The default setting value is OFF protection not active The accuracy range is 10 The tjam time delay setting value is expressed in seconds The tjam time delay setting range is 1 30 s The step is 1 s The default setting value for the time delay is 5 s 68 LV434104 06 2008 The Protection Function Underload Motor Protection Presentation Description Operating Principle Setting the Protection lund Pick Up Setting Va
126. microswitch is assigned to locking anda unlocking the protection parameter settings Microswitch 1007 a 59 Ir A nec amp aa E 97 9 9 2B 4 8 Ej 9 z w mg 9 34 1 9 15 0 o IV 2 OFF S 3 isd xir 3 Ig xIn No Description 1 Pick up Ir preset dial for all Micrologic trip unit types 2 Preset dial 2A Micrologic 5 For the short time protection pick up Isd 2B Micrologic 6 For the ground fault protection pick up Ig 3 Microswitch for locking unlocking the protection parameter settings Display The LCD display provides all the information needed to use the trip unit The list of protection parameters is customized according to the Micrologic trip unit type 5 6 or 6 E M 1 2 3 4 5 Ir tr isd tsd li xln l ab m XOH A ANN a 6 Cuni v y y n 7 N 1A 2B 3C a No Description 1 5 pictograms how these are combined defines the mode X Metering lt Readout Protection parameter Setting Q Locking Up arrow pointing to protection parameter currently being set List of protection parameters according to the Micrologic trip unit type e Micrologic 5 Ir tr isd tsd li xin e Micrologic 6 Ir tr isd tsd lixin lg tg uM e Micrologic 6 E M Ir Cl e amp isd lunbal tunbal lam tjam lg tg EADe HI eT 4 Value of the measured quantity 5 Unit of the measured quantity 6 Navigation arrows 7 Down arrow s pointing to the selected phas
127. module in permanent latching Ir tr Isd tsd li xin mode has not been acknowledged see Acknowledgment of Latching Mode p 117 or the acknowledgment request is made when the alarm is still active N 1 A 2B 3 0 Check the cause of the alarm and acknowledge the alarm by pressing the key twice validation and confirmation The main screen current value of the most heavily loaded phase is displayed LV434104 06 2008 135 Operating Assistance Indication of For more information on definitions of the fault protections associated with indications see Electrical Faults With Distribution Protection p 37 Micrologic 5 Screen Cause and 6 Breaking current Ir Tripped by long time protection Up arrow pointing to Ir breaking Ir tr isd tsd li xln value displayed N 1 A 2 B 3 C Peak breaking current Isd Tripped by short time protection Up arrow pointing to Isd breaking Ir tr isd tsd li xln value displayed N 1 A 2 B 3 0 Peak breaking current li Tripped by instantaneous protection or reflex protection Up arrow Ir tr isd tsd li xin pointing to li breaking value displayed N 1 A 2 B 3 0 Tripped by integrated instantaneous protection Up arrow pointing Ir tr isd tsd li xln to li triP displayed N 1 A 2 B 3 0 Micrologic 6 Ir tr Isd tsd li Ig tg Tripped by ground fault protection Up arrow pointing to Ig triP displayed N 1 A 2 B 3IC Tripped due to
128. n XY amp ny Printed on recycled paper Production Sigma Kudos France Publication Schneider Electric Printed 06 2008
129. n only be set using the RSU software When a protection parameter is preset by a dial the dial on the Micrologic trip unit and the virtual dial in the RSU software have to be in an identical position 122 LV434104 06 2008 The RSU Parameter Setting Software Underload and Long Start Motor Protection Setting Micrologic 6 E M The figure below describes the Basic prot tab in the RSU software for the Micrologic 6 E M trip unit HT M crologic RSU C WicrologscVHilityVcsu AVataWew rsa Fin Bante fuctis Senp Ureuodste Help Mad Poezen P S w z s py ree pm vensn E Service BB Base pret ER Atome ZI Outs I 6er I etae Uerder ood oer A CL Y md eerte low tor y li lad td 3X0A NWA 0020 153n no Sar Molt iron 1 Padlock unlock button The table below illustrates the Underload and Long start motor protection settings Screen Action Unlock the padlock Under load Select the Under load window on the left of the screen jos a 2 dropdown lists can be used to set the underload protection e Select the pick up value from the dropdown list marked xlr 10 s e Select the time delay from the dropdown list marked s Unlock the padlock Long start Select the Long start window on the left of the screen H B m 2 dropdown lists can be used to set the long start motor protection e Select the pick up value from the dropdown list marked xl
130. n internal failure on the Micrologic trip unit whether fleeting or permanent has occurred without the circuit breaker tripping the failure does not affect the trip unit protection functions N 1 A 2 B 3 0 A CAUTION RISK OF INCORRECT INFORMATION Replace the Micrologic trip unit at the next maintenance interval Failure to follow these instructions can result in injury or equipment damage Acknowledging The Err screen is acknowledged by pressing the key twice i validation and confirmation which the Err Screen brings up the main screen The measurements and settings can still be accessed with the Mode key The Err screen becomes the main screen if the failure is permanent 138 LV434104 06 2008 Operating Assistance Indication on Internal Fault of the Micrologic Trip Unit Acknowledging Screen Cause Ir tr isd tsd li xin N 1A 2 B 3 0 A serious internal fault has occurred in the Micrologic trip unit This fault trips the circuit breaker A CAUTION RISK OF UNPROTECTED EQUIPMENT Replace the Micrologic trip unit immediately Failure to follow these instructions can result in injury or equipment damage The St0P screen cannot be acknowledged using the key the StOP Screen e It is no longer possible to close the Compact NSX circuit breaker The measurements and settings can no longer be acc
131. n kW Ptot 127 kw i Reactive power Qtot in kvar et 13KVAT Apparent power Stot in kVA Stot 129 kVA ESC v A HEE 57 Screen 6 in the Quick View menu displays the following energies Active energy Ep in kWh E 11318 kWh P Reactive energy Eq in kvarh Ed 257 kVArh Apparent energy Es in kVAh Es 13815 kVAh ESC w A Ee 7 Screen 7 in the Quick View menu displays The frequency F in Hz F 50 Hz The power factor PF PF ue The cos o Cos o 0 81 ESC w A LV434104 06 2008 153 Operating Assistance Number of The examples below illustrate the number of screens available according to the type of Micrologic trip Available unit and or the type of Compact NSX circuit breaker Screens If the Compact NSX circuit breaker type is 4 pole equipped with a Micrologic type A trip unit screens 1 and 2 are available If the Compact NSX circuit breaker type is 4 pole equipped with a Micrologic type E trip unit screens 1 to 7 are available f the Compact NSX circuit breaker type is 3 pole without ENCT option on screen 2 the IN current is not available If the Compact NSX circuit breaker type is 3 pole without ENVT option equipped with a Micrologic type E trip unit screen 4 is not available 154 LV434104 06 2008 Operating Assistance Metering Menu Presentation The Metering menu is used to display current voltage energy me
132. n the Trip Unit In Rating and the Dial Position 25A 12 14 16 18 20 22 23 24 25 50A 25 30 32 36 40 42 46 47 50 80A 35 42 47 52 57 60 63 72 80 150A 70 80 90 100 110 120 133 140 150 220 A 100 120 140 155 170 185 200 210 220 320 A 160 180 200 220 240 260 280 300 320 500A 250 280 320 360 380 400 440 470 500 The accuracy range is 5 20 Fine tuning is performed on the keypad in steps of 1 A The setting range maximum is the preset value displayed by the dial The setting range minimum is the minimum preset value Example A Micrologic 6 E M trip unit In 2 500 A is preset by the dial at 470 A The fine tuning range on the keypad is 250 470 A The trip class corresponds to the value of the trip time delay for a current of 7 2 Ir according to standard IEC 60947 4 1 The class is set via the keypad using any of the 4 defined values 5 10 20 and 30 The default class setting value is 5 minimum value The table below shows the value of the trip time delay depending on the current in the load for all 4 trip classes Current in the Load Trip Class CI 5 10 20 30 tr Trip Time Delay s 1 5 Ir 120 240 400 720 6 Ir 6 5 13 5 26 38 7 2 Ir 5 10 20 30 The accuracy range is 20 0 The model representing heat rise and cooling in a motor load is identical to that used for the conductors It is constructed according to the algorithm for calculatin
133. n the zone corresponding to a key this key is inactive for the menu displayed 1 For more information on the display modes see Measurement Display Modes p 156 The supply terminal block has 2 points per terminal to simplify if necessary distribution of the power supply to other front display modules FDM121 in the board The front display module FDM121 has two identical ULP link connectors RJ45 in parallel which allows the intelligent functional unit modules to be connected in any order Note When the second ULP link connector is not used it must be closed with a line terminator ref TRV00880 LV434104 06 2008 149 Operating Assistance Alarm Processing Presentation Alarm Indication Alarm Pop up Screen The front display module FDM121 Indicates in real time the occurrence of a high or medium priority alarm e Associated with a measurement e Associated with a trip failure or maintenance event Indicates in the Alarms menu the history of the last 40 alarms that have occurred or completed see Alarms Menu p 157 For more information On the list of alarms see Detailed Tables of Alarms p 112 and Alarms on a Trip Failure and Maintenance Event p 111 On alarm activation and setup by the RSU software see Alarm Setup p 126 Alarms are displayed on the front display module FDM121 according to their order of occurrence The last active alarm to occ
134. nce interventions should be executed according to the priority level Configured alarms high medium low or no priority Or pre defined trip and failure events high or medium priority When a number of events arrive simultaneously they are stacked according to their criticality level 0 no criticality to 4 high criticality Criticality Screen 1 0 Main screen 1 Outx alarm screen 2 Err internal failure screen 3 Stop internal fault screen 4 Trip screen 1 The screens and their acknowledgment procedure are described below Example An alarm on a voltage measurement Outx then an internal failure Err have occurred 1 The screen displayed is the internal failure Err screen After acknowledging the internal failure Err screen the alarm Outx screen is displayed After acknowledging the internal failure Outx screen the main screen is displayed 1 The stacking example corresponds to 3 criticality levels 0 for the main screen 1 for the Outx screen and 2 for the internal failure Err screen The same acknowledgment sequence should be performed if the internal failure Err occurred before the voltage measurement Outx Screen Cause phase 2 The main screen displays the current value of the most heavily Ir tr isd tsd li xin loaded phase N WA 2B 31C Circuit breaker with SDx module option Screen Cause Outx An alarm configured on the SDx
135. nciple It incorporates the motor thermal image function It can be configured as the Ir pick up and as the trip class Cl Tripping curve 0 t 1 2 30s 20s 4 10s J 5s pal No Parameter Description 0 In Trip unit setting range The maximum setting corresponds to the trip unit rating In 1 Ir Long time protection pick up 2 Cl Long time protection trip class according to standard IEC 60947 4 1 Note The SDTAM module early tripping protection function can be used to command contactor opening see SDTAM Module Option p 57 Setting the Long The Ir pick up can be set as follows Time Protection On the Micrologic trip unit preset by the Ir dial and fine tuned on the keypad Via the communication option using the RSU software preset by the Ir dial on the Micrologic trip unit and fine tuned via the RSU software The trip class Cl can be set as follows On the Micrologic trip unit set on the keypad Via the communication option using the RSU software LV434104 06 2008 59 The Protection Function Ir Pick Up Setting Value Trip Class CI Setting Value Motor Thermal Image The long time protection tripping range is 1 05 1 20 Ir according to standard IEC 60947 2 The default Ir pick up setting value is In maximum dial value The Ir pick up is preset by a dial In Rating Preset Values of Ir A Depending o
136. ndicators in accordance with the definition of critical situations Situations are said to be critical when the values of the indicators are around 0 The minimum and maximum values of the indicators are defined for these situations The figure below illustrates the variations of the cos indicator with the definition of the cos MIN MAX and its value according to IEEE convention for a receiver application 0 LQ i 012 IN cos 1 1 1 COS 9 0 0 Q4 Q4 Arrows indicating the cos variation range for the load in operation Critical zone 0 for highly capacitive devices shaded green Critical zone 0 for highly inductive devices shaded red Minimum position of the load cos lagging red arrow Variation range of the value of the load cos lagging red Maximum position of the load cos leading green arrow Variation range of the value of the load cos leading green MAX cos o oc5o0mwv PF MAX or cos o MAX is obtained for the smallest positive value of the PF or cos indicator PF MIN or cos o MIN is obtained for the largest negative value of the PF or cos indicator Note The minimum and maximum values of the PF and cos q indicators are not physically significant they are markers which determine the ideal operating zone for the load According to the IEEE convention critical situations in receiver mode on a capacitive or inductive load are detected and discrimin
137. ndow using the scroll bars in the Interval dropdown list the duration can be selected from 5 to 60 minutes in steps of 1 minute The calculation window type must be sliding window The table below illustrates the parameter settings for the cos o and power factor PF indicators in the Services tab Screen Action Metering setup Power sign Total active Power 0 000 kw Power factor convention IEEE X Select the sign convention in the Power factor sign window The default parameter setting for the sign convention is the IEEE convention Energy The table below illustrates the energy accumulation mode setup in the Services tab necumulauen Screen Action Mode Setup Select the energy accumulation mode in the Energy accu mode window Bed eri Absolute energy The energies supplied and consumed are counted positively Window type Signed energy The energy supplied is valued negatively the energy consumed is valued sliding v positively Interval min The default parameter setting for the energy accumulation mode is absolute energy mode 5 Energy acc mode absolute X LV434104 06 2008 125 The RSU Parameter Setting Software Alarm Setup Presentation Activating an Alarm Alarm selection and setup can be accessed using the RSU software under the E Alarms tab VA Micrologic RSU C WicrologicVUtilityNRSU AXDataWew rsa Die Remote functions S
138. nferiority Decremented if the activation condition is no longer fulfilled before the end of the pick up time delay Conditions If the deactivation condition is reached the pick up time delay counter is reset and the drop out time delay counter is incremented For the drop out threshold the same principle is used Example Management of the time delay on an overvoltage alarm code 79 see Detailed Tables of Alarms p 112 viv 4 1 2 3 4 1 Evolution of the voltage 2 Pick up time delay counter at 5 s 3 Drop out time delay counter at 2 s 4 Overvoltage alarm pick up zone in green The alarm pick up time delay counter trips when the 500 V threshold is crossed by the voltage It is incremented or decremented according to the value of the voltage in relation to the threshold The alarm drop out time delay counter trips when the voltage drops back below the 420 V threshold 110 LV434104 06 2008 Alarms Alarms on a Trip Failure and Maintenance Event Presentation Alarm Setup Alarm Priority Level Alarms on a trip failure and maintenance event are always active They can be accessed Via the communication network On the front display module FDM121 see FDM121 Switchboard Display Unit p 143 Certain alarms can be assigned to an SDx module output see Setting the SDx Module Output Parameters p 128 The parameters of alarms on a trip and failure event are fixed and cannot be modified The parameters of the 2 ma
139. ng a All the protection parameter settings can be accessed on the keypad The user can navigate through the Protection protection parameter settings by means of the and 9e keys Ks a onthe amp The key can be used to select the parameter to be set eypa e The up arrow indicates the selected parameter e The down arrows indicate that all phases are set to the same value except for the neutral protection setting e Scrolling is cyclical The protection parameters are set on the keypad by means of the keys The associated navigation arrows indicate the setting options 4 Possible to press the key increases the setting value EE Possible to press the key reduces the setting value BEEN Possible to press one of the 2 a keys Validation and Confirmation of a Protection Parameter Setting The value of a protection parameter set on the keypad must be 1 Validated by pressing the key once the OK pictogram blinks on the display 2 Then confirmed by pressing the 9 key again the text OK is displayed for 2 s Note Setting using a dial does not require any validation confirmation action LV434104 06 2008 23 Using Micrologic Trip Units Example of Presetting a Protection Parameter Using a Dial The table below illustrates presetting and setting the long time protection Ir pick up on a Micrologic trip unit 5 2 rated 250 A Step Action U
140. nge Phase to phase voltage V12unb L L V23unb L L 96 Vavg L L 100 100 196 100 100 V31unb L L and phase to neutral voltage V1Nunb L N Vavg L N 1 V1N V2N V3N with 4 pole or 3 pole trip unit with ENVT option Note The unbalance values are signed relative values The unbalance maximum values MAX are not signed absolute values LV434104 06 2008 99 The Metering Function Power Metering The accuracy range is indicated for Micrologic trip unit operation In the current range 0 1 1 2 In In the voltage range 70 850 V In the cos range 1 0 5 and 0 5 1 Measurement Unit Measurement Accuracy Accuracy Range Range Only with 4 pole or 3 pole trip unit with ENVT option kW 1000 1000 kW 2 1000 1 kW Active power measurements for each phase P1 P2 1 1000 kW P3 Maximum values of active powers for each phase P1 MAX P2 MAX P3 MAX Minimum values of active powers for each phase P1 MIN P2 MIN P3 MIN Total active power measurement Ptot kW 3000 3000 kW 2 3000 3 kW Maximum value of total active power Ptot MAX 3 3000 kW Minimum value of total active power Ptot MIN Only with 4 pole or 3 pole trip unit with ENVT option kvar 1000 1000 kvar 2 1000 1 kvar Reactive power measurements for each phase Q1 1 1000 kvar Q2 Q3 Maximum values of react
141. nits Micrologic 5 2 and 6 2 A or E 40 160A Micrologic 5 2 and 6 2 A or E 250 A 40A ir2 16 40A 100A ir2 36 100A 160 A Ir 56 160 A omur isd 1 5 10 x Ir isd 1 5 10xir 5 7 1 2 345710 205710 20 30 50 57 1 2345 710 2057 10 20 30 50 I it Al in lH Mat o Main Reflex tripping Micrologic 6 2 A or E ground fault protection 40A ig 204 40A 19702 i I ji i e f The tripping curve is identical to that of Micrologic 5 Ground fault protection is shown separately LV434104 06 2008 175 Tripping and Limitation Curves Compact NSX100 to 250 Motor Feeder Protection Tripping Curves MA magnetic trip units MA2 5 MA100 MA150 and MA220 4 10000 410000 amp 5000 5000 2 000 2000 t 1000 1000 500 500 200 200 100 100 50 50 20 20 10 10 5 5 t s t s 2 2 1 1 5 5 2 2 1 1 Tii 05 05 fe 02 02 Le 01 01 B 005 005 001 001 571 2 345 7 10 2030 5070100 200300 571 2 345 7 10 20 30 5070100 200300 o 1H 7 Reflex tripping Micrologic 2
142. ns to the Display sub menu ESC v OK A LV434104 06 2008 161 Operating Assistance Choice of Language Maintenance Sub Menu Screens The table below shows how to choose the language on the front display module FDM121 from the Services menu Step Action Display 1 Select the Services menu in the Main menu using the W and keys Main menu Validate selection of the Services menu by pressing the OK key o Quick view Pressing the ESC key has no effect A Metering A Alarms ESC Y OK A 2 The Services menu is displayed 8S Services Select the Language sub menu using the Wand A keys Reset Validate selection of the Language sub menu by pressing the OK key Set up Pressing the ESC key returns to the Main menu Maintenance Product ID p Language ESC Y OK A 3 The Language sub menu is displayed lt NN Select the desired display language using the Van A keys Chinesa Validate selection of the language by pressing the OK key English UK Pressing the ESC key returns to the Services menu English US b French Spanish ESC Y OK A The table below presents the maintenance screens available Screens Description lt A 0 3 Pressing the W key switches to screen 2 Rate 996 Screen 1 Contact wear displays the amount of wear on the circuit breaker contacts Pressing the ESC key returns to the Maintenance info sub menu
143. nst I1 6 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current inst I2 7 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current inst I3 0 2 10 In 1 3000 s 0 2 In 40s 10s Over Current lavg 55 0 2 10 In 1 3000 s In 60s 15s Over I MAX 1 2 3 56 0 2 10 In 1 3000 s In 60s 15s Under Current IN 57 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current lavg 60 0 2 10 In 1 3000 s 0 2 In 60s 15s Under I MIN 1 2 3 65 0 2 10 In 1 3000 s 0 2 In 60s 15s 112 LV434104 06 2008 Alarms User Defined Alarms Micrologic E By default User defined alarms are not active Alarms 1 to 144 are medium priority Alarms 145 to 150 are low priority Label Code Setting Range Default Setting Thresholds Pick Up Time Delay Thresholds Time Delay or Drop Out Pick Up Drop Out Over Current inst 11 1 0 2 10 In 1 3000 s In 40s 10s Over Current inst I2 2 0 2 10 In 1 3000 s In 40s 10s Over Current inst I3 3 0 2 10 In 1 3000 s In 40s 10s Over Current inst IN 4 0 2 10 In 1 3000 s In 40s 10s Ground Fault alarm 5 10 100 Ig 1 3000 s 40 lg 40s 10s Micrologic 6 trip unit Under Current inst 11 6 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current inst I2 7 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current inst I3 8 0 2 10 In 1 3000 s 0 2 In 40s 10s Ov
144. ode main screen displayed N 1A 2 18 3C 2 Select the Ep active energy meter OQO Ir tr isd tsd li xin The value displayed is 11 3 MWh in the example this corresponds to 10 MWh 1300 kWh approximately N WA 2 B 3C c 3 Specify the measurement O Ir tr dsd tsd li xin The value displayed is 1318 kWh in the example the full energy meter value is 11318 kWh N 1A 2B 3C 4 Return to the energy meter normal oS r tr isd tsd li xin display The display reverts automatically after 5 minutes N WA 2B 3C Er Meter The energy meters can be reset with the padlock locked amp or unlocked m ese Step Action Using Display 1 Select the Measurement readout Mode Ir tr isd tsd li xIn and reset energy meter mode main screen displayed N WA 2B 3C 2 Select the energy meter to be reset OQ Ir tr ded tsd li xin emerge 1458 om Validate me eels od Ir tr sd tsd li xin The OK pictogram blinks MA 2 A No 4 Confirm the reset Ir tr asd tsd li xin The confirmation OK is displayed for 2s N WA 2B 3C 20 LV434104 06 2008 Using Micrologic Trip Units Peak Demand Values Reset Ground Fault Protection Test Micrologic 6 The peak demand values can be reset with the padlock locked f or unlocked ai Step Action Using Display 1 Select the Readout and reset peak D Pa e eian demand values mode main screen displayed N WA 2B
145. odo ren Oe ate dte vore seed V odd dete teres 51 Using the ZSI Function with Compact NSX sssssseseseseee eee eee 52 2 2 Motor Feeder Application 0 0 cee ee nee nn 54 Protection for Motor Feeders 0000 eee hm 55 Long Time Protection hob ohne eh eS a aed ei we Pacey aes i we ee 59 Short Time Protection 1 0 0 0 cece e mm 62 Instantaneous Protection mv RR oe ee epee be poe Re pees wile eed EE ER 63 Ground Fault Protections ier kl rure ux Eheu bed ect aed be ba yi pe i ts 64 Phase Unbalance Protections eicae m edina eee eee 66 Jam Motor Protection zoe nb EI Mb ged laa hee pach Pee d uode pave eck Pardee eee ed 68 Underload Motor Protection irnar ienaa eee I xn 69 Long Start Motor Protection 00 ccc hh 70 Chapter 3 The Metering Function llle 73 3 1 Measurement Techniques 00 eee ee Im 74 Real Time Measurements 06 cee eee ene I hn 75 Calculating Demand Values Micrologic E lslileleeeeeee tenet eee 78 Power Metering Micrologic E 0 ee IH IH I 80 Power Calculation Algorithm ilssseeeeeeeeeee mr 83 Energy Metering Micrologic E leise 85 Harmonic GUtrents i tebe e ecbvRwa lE owed m Eid dnce Eh acea 87 Metering Energy Quality Indicators Micrologic E 0 cece eee eee eee 89 Power Factor PF and Cos o Measurement Micrologic E 0 0 cece eee 91 3 2 Measurement Accuracy Tables
146. oftware Presentation Using the RSU Software Offline Mode Online Mode User Profiles The RSU Remote Setting Utility software is a Micrologic utility designed to help the operator To check and or configure e Protection parameters Metering parameters Alarm parameters Assignment of the SDx module outputs BSCM module parameters Modbus interface module parameters To modify passwords To save these configurations To edit configurations To display trip curves To download the firmware The RSU software can be used In standalone mode directly on the Micrologic trip unit by means of the test port For this type of use you need a standard PC and the maintenance module Via the communication network For more details see the RSU Software Online Help Offline mode can be used to configure the protection metering and alarm functions of the Micrologic trip unit in the RSU software For more details on offline mode see the RSU Software Online Help Online mode can be used to Perform the same configuration functions as offline mode Download information from or to the Micrologic trip unit For more details on online mode see the RSU Software Online Help 2 buttons located on the right of the screen activate the data transfer FARSU Compact NSX Rev 2 007F C WicrologicVUtilityNRSU AWMataWew rsa Eie Remote functions Setup jveupdale Help Maciologec selection Sch id PANJLVAZXMS oe 1
147. oftware Selected alarm Lagging cos EEE over VMAX L4 Code 78 Prixety High 1 Pick up Drop cut 5 v 500 EE value v 420 4 swoj ef emves f2 asemi 3 E 1 Priority level High 2 Drop out threshold 420 V 3 Drop out time delay 2 s 4 Pick up time delay 5 s 5 Pick up threshold 500 V Alarms on The value of the drop out threshold must always be higher than the pick up threshold Inferiority Alarms on inferiority condition are dedicated to supervision of Condition Undervoltages Underloads Micrologic 6 E M Underfrequencies Alarms on The measurements associated with alarms on an equality condition correspond to a load status Equality Operating quadrant Condition Leading or lagging reactive power Example Setting the parameters for monitoring a quadrant code 150 see Detailed Tables of Alarms p 112 using the RSU software Alanns setup Selected alarm Legging cos EEE ousdrare 4 Code 150 Preety Lo Pick up 1 1 Pick up threshold Quadrant 4 The drop out thresholds are quadrant values other than 4 140 LV434104 06 2008 Operating Assistance Alarm Monitoring of the Cos and Power Factor Managing the Cos q and Power Factor PF Indicator Maximum and Minimum Values Electrical Distribution Monitored According to IEEE Convention Interpreting the Cos q MIN MAX and the Cos Values According to IEEE Convention Electrical Distribution Monitored Acc
148. oftware see Setting the Protection Parameters p 122 The l ong pick up setting value is expressed in multiples of Ir The pick up setting range is 1 8 Ir The step is 0 1 Ir The default setting is OFF protection not active The accuracy range is 10 The t ong time delay setting value is expressed in seconds The t ong time delay setting range is 1 200 s The step is 1 s The default setting value for the time delay is 10 s LV434104 06 2008 71 The Protection Function 72 LV434104 06 2008 The Metering Function At a Glance Aim This chapter describes the metering function of Micrologic 5 6 and 6 E M trip units What s in this This chapter contains the following sections 2 Chapter Section Topic Page 3 1 Measurement Techniques 74 3 2 Measurement Accuracy Tables 95 LV434104 06 2008 The Metering Function 3 1 Measurement Techniques At a Glance Aim This section describes the measurement characteristics and techniques used by Micrologic trip units What s in this This section contains the following topics Section Topic Page Real Time Measurements 75 Calculating Demand Values Micrologic E 78 Power Metering Micrologic E 80 Power Calculation Algorithm 83 Energy Metering Micrologic E 85 Harmonic Currents 87 Metering Energy Quality Indicators Micrologic E 89 Power Factor PF and Cos Measurement Microlo
149. ong time prot Ir 16384 Yes High Short time prot Isd 16385 Yes High Instant prot li 16386 Yes High Ground fault Ig 16387 Yes High Integ instant prot 16390 No High Trip unit fail Stop 16391 Yes High Instant vigi prot 16392 No High Reflex tripping 16393 No High Phase unbalance 16640 Yes High Jam motor prot 16641 Yes High Under load mtr prot 16642 Yes High Long start mtr prot 16643 Yes High Trip indicator SD 1905 Yes Medium Label Code SDx Output Priority BSOM failure Stop 1912 Yes High BSOM failure Err 1914 Yes Medium Label Code SDx Output Priority OF operation overrun 1916 Yes Medium Close command overrun 1919 Yes Medium LV434104 06 2008 115 Alarms Operation of SDx and SDTAM Module Outputs Assigned to Alarms Presentation SDx Module Output Operating Modes Operation in Non Latching Mode Operation in Latching Mode Operation in Time delayed Non Latching Mode 2 alarms can be assigned to the 2 SDx module outputs The 2 outputs can be configured using the RSU software Outputs tab and are activated or deactivated by the occurrence or completion of An alarm associated with a measurement see Alarms Associated with Measurements p 108 An alarm on a trip failure and maintenance event see Alarms on a Trip Failure and Maintenance Event p 111 The 2 outputs on the SDTAM module Micrologic M cannot be configured Output 1 is assigned to motor thermal fault
150. or 3 minutes each time a navigation key is pressed The backlighting blinks every 250 ms when a prohibited ULP functional unit configuration is detected for example if 2 identical modules are part of the same ULP functional unit The backlighting blinks once a second when test mode is active 148 LV434104 06 2008 Operating Assistance Navigation Keys 24 V DC Supply Terminal Block ULP Link Connectors The 5 navigation keys provide quick and intuitive navigation 1234 5 Escape Down Validation OK Up Context sensitive key aaron The navigation zone identifies which navigation options are available using the keys depending on the menu displayed The table below lists the navigation options offered by the 5 keys on the front display module FDM121 Key Definition Icon Description Escape key ESC Exits a menu or a sub menu and returns to the previous menu N94 ws Down key v Used to point to the desired measurements or to go from one screen to the a next Validation key OK Validates selection of a menu option Up key A Used to point to the desired measurements or to go back to the previous My screen A Context Displays measurements in Bar Graph mode 1 Y sensitive key Clear Clears an alarm pop up screen clears and LED goes off V s Displays measurements in Dial Graph mode 1 888 Displays measurements in numeric mode 1 When no icon is displayed i
151. ording to IEC Convention Monitoring of the cos and power factor PF indicators depends on the sign convention selected for the power factor PF see Power Factor PF and Cos o Measurement Micrologic E p 91 IEEE or IEC convention Note The alarm type associated with the indicators for example leading PF IEEE code 31 or lead or lag PF IEC code 33 must be consistent with the sign convention selected IEEE or IEC for the PF indicator in the RSU software see Metering Setup p 124 The IEEE convention is the default selection The maximum value of the PF MAX or cos o MAX indicator is obtained for the smallest positive value of the PF or cos q indicator The minimum value of the PF MIN or cos MIN indicator is obtained for the largest negative value of the PF or cos q indicator The example below describes monitoring of the energy quality by the cos indicator The table below gives the history of the cos values of the load of a workshop downstream of a Compact NSX according to IEEE convention Time Evolution of the Load IEEE Convention Cos o cos q MIN cos o MAX t128h00 min Power startup 0 4 0 4 0 4 t2 8h01 min Compensation system startup 0 9 0 4 0 9 t3 9h20 min Power stops 4 0 3 0 4 0 3 t4 9h21 min Compensation system stops 0 95 0 4 0 3 The cos o MIN and cos MAX values indicate the cos variation range for
152. own list in the Output setup window The dropdown list contains all the alarms on a trip failure and maintenance event as well as the alarms associated with measurements activated in the Alarms tab see Alarm Setup p 126 Output setup Selected output SOX Out 2 Alam lor operation ovenun vs EEE OK 3 Output setup Selected output SDX Out 2 Alam lor operation overtun Mote fea OK If necessary set the time delay LV434104 06 2008 129 The RSU Parameter Setting Software 130 LV434104 06 2008 Operating Assistance At a Glance Aim This chapter describes how to use the information and functions providing operating assistance for the electrical equipment available with Micrologic 5 6 and 6 E M trip units and the associated tools RCU software and FDM121 display module What s in this This chapter contains the following sections Chapter Section Topic Page 6 1 Micrologic Trip Unit Indicators 132 6 2 FDM121 Switchboard Display Unit 143 6 3 RCU Operating Software 163 6 4 The Communication Network 165 LV434104 06 2008 131 Operating Assistance 6 1 Micrologic Trip Unit Indicators At a Glance Aim This section describes the supervision and monitoring options for an installation using the Micrologic trip unit local indicators LEDs and LCD display What s in this This section contains the following topics Section Topic
153. p unit powered in normal conditions Atatemperature of 23 C 2 C For a measurement taken at a different temperature in the temperature range 25 C to 70 C the derating coefficient for temperature accuracy is 0 05 per C The accuracy range is the part of the measurement range for which the defined accuracy is obtained the definition of this range can be linked to the circuit breaker load characteristics 96 LV434104 06 2008 The Metering Function Micrologic A Real Time Measurements Current Metering Measurement Unit Measurement Range Accuracy Accuracy Range Phase 11 12 I3 and neutral IN current measurements 1 Maximum current values of phases l1 MAX I2 MAX I3 MAX and the neutral IN MAX 1 Maximum value MAXMAX of the MAX of the phase currents Minimum current values of phases 11 MIN 12 MIN I3 MIN and neutral IN MIN 1 Minimum value MINMIN of the MIN of the phase currents Average current lavg measurements Maximum average current value lavg MAX Minimum average current value lavg MIN 0 20 In 1 0 2 1 2 In Micrologic 6 Ground fault current measurement Maximum minimum value of the ground fault current Ig 0 600 1 IN with 4 pole or 3 pole trip unit with ENCT option LV434104 06 2008 97 The Metering Function Micrologic E Real Time Measurements Current Metering Measurement Unit
154. parent using the total power real time values see Power Metering Micrologic E p 80 The sampling method used takes account of the values of the harmonic currents and voltages up to the 15th order The sampling period is 512 microseconds The values of the electrical quantities whether measured or calculated in real time are updated once a second Micrologic 4 pole or 3 pole trip units with ENCT option measure the neutral current For a 3 pole trip unit the neutral current is measured by adding a special current transformer on the neutral conductor ENCT option for the transformer definition see the Compact NSX 100 630 A Catalogue For a 4 pole trip unit the neutral current is measured systematically The neutral current is measured in exactly the same way as the phase currents Micrologic 4 pole or 3 pole trip units with ENVT option measure the phase to neutral voltages V1N V2N and V3N For a 3 pole trip unit it is necessary to e Connect the wire from the ENVT option to the neutral conductor e Declare the ENVT option configured using the RSU software For 4 pole trip units the phase to neutral voltages are measured systematically The phase to neutral voltages are measured in exactly the same way as the phase to phase voltages Micrologic trip units calculate the Average current lavg the arithmetic mean of the 3 phase currents lavg I1 12 13 3 Average voltages e Phase to phase
155. play 1 Select the Instantaneous D Ir tr isd tsd li xin measurement readout mode the most heavily loaded phase is displayed Read the value of current 12 NOTAT AM 2 Select the next current c Ir tr lsd tsd li xin measurement current I3 Read the value of current I3 N 1A 2B 3C 3 Select the next current c Ir tr isd tsd li xin measurement current l1 Read the value of current I1 N VA 2B 3C 4 Select the phase to phase voltage O Ir tr isd tsd li xin V12 measurement Read the value of voltage V12 N 1A 2B 3C 5 Select the Ptot power QO r tr isd tsd li xin measurement Read the Ptot active power N 1A 2B 3C LV434104 06 2008 19 Using Micrologic Trip Units Energy Meter Readout Micrologic E Full Energy Meter Readout Energy meters change measurement unit automatically For active energy Ep displayed in kWh from 0 to 9999 kWh then in MWh For reactive energy Eq displayed in kvarh from 0 to 9999 kvarh then in Mvarh For apparent energy Es displayed in kVAh from 0 to 9999 kVAh then in MVAh When energies are indicated in MWh or Mkvarh or MVAN the values are displayed on 4 digits The Micrologic trip unit incorporates the option of full energy meter readout The table below gives the full readout values of the Ep active energy meter Step Action Using Display 1 Select the Readout and reset the Co Ir tr isd tsd li xIn energy meter m
156. r 10 s e Select the time delay from the dropdown list marked s LV434104 06 2008 123 The RSU Parameter Setting Software Metering Setup Presentation The metering setup and selection of calculation modes can be accessed using the RSU software under the Service tab V Micrologic RSU C WicrologicVUHDTy AR SU AWataView rsa pe Remote funvers Seta Ureusdete He Mictologic selection Top ure Dinta e Mereloge 626 p emlwanwe Service I Basic pese ER airs TIE aces IL Book 10 Gy intestine Metecing setup Power son Ta Lena Nevina Normas voksa Cunert demand Power demand Window type Window ype Steading sir EI Interval interval nn m hs aj Erag acc mode ebore Voltage Too T Flog 2014 51 ENVT Option The table below illustrates the ENVT option parameter settings in the Services tab Setup 3 Pole Screen Action Device Check the declaration box for the ENVT option in the Metering setup External Neutral Cre demand Voltage Tap window IS The content of Modbus 3314 register is described in the Modbus Compact NSX User Slidding manual Interval min 15 4 External Neutral Voltage Tap T Reg 3314 31 Note The ENCT option parameter can be set directly on the Micrologic trip unit screen and or using the RSU software under the Basic prot tab Power Setup The table below illu
157. ral repulsion of contacts and the appearance of two arc voltages in series with a very steep wave front Ics 100 Icu The exceptional limiting capacity of the Compact NSX range greatly reduces the forces created by fault currents in devices The result is a major increase in breaking performance In particular the service breaking capacity Ics is equal to 100 of Icu The Ics value defined by IEC standard 60947 2 is guaranteed by tests comprising the following steps m break three times consecutively a fault current equal to 100 of Icu m check that the device continues to function normally that is o it conducts the rated current without abnormal temperature rise o protection functions perform within the limits specified by the standard o suitability for isolation is not impaired Longer service life of electrical installations Current limiting circuit breakers greatly reduce the negative effects of short circuits on installations Thermal effects Less temperature rise in conductors therefore longer service life for cables Mechanical effects Reduced electrodynamic forces therefore less risk of electrical contacts or busbars being deformed or broken Electromagnetic effects Fewer disturbances for measuring devices located near electrical circuits Economy by means of cascading Cascading is a technique directly derived from current limiting Circuit breakers with breaking capacities less than the prospective short ci
158. rameter ljam Jam motor protection pick up setting ljam Ir The up arrow indicates if OFF is indicated jam motor protection is not active the ljam parameter The down arrows indicate the 3 phases tjam Jam motor protection time delay setting S The up arrow indicates the tjam parameter Ig Ground fault protection pick up setting lg In The up arrow indicates Preset by a dial the lg parameter tg Ground fault protection time delay setting S The up arrow indicates the tg parameter The down arrows indicate the 3 phases 34 LV434104 06 2008 The Protection Function At a Glance Aim What s in this Chapter This chapter describes the protection function of Micrologic 5 6 and 6 E M trip units This chapter contains the following sections Section Topic Page 2 1 Electrical Distribution Application 36 2 2 Motor Feeder Application 54 LV434104 06 2008 35 The Protection Function 2 1 Electrical Distribution Application At a Glance Aim This section describes the protection characteristics of Micrologic 5 and 6 trip units dedicated to protecting electrical distribution applications What s in this This section contains the following topics Section Topic Pads Electrical Distribution Protection 37 Long Time Protection 40 Short Time Protection 43 Instantaneous Protection 45 Ground Fault Protection 46 Neutral Protect
159. ranges and default settings see Detailed Tables of Alarms p 112 Under the FB Alarms tab Step Action 1 Double click on the alarm in the Alarms tab Modify the parameters in the dropdown list in the Alarm setup screen Set the drop out threshold value and time delay if present in the Drop out value and Drop out delay windows using the scroll bars Confirm by clicking OK the new alarm parameters appear in the right hand side of the dropdown list Under the FB Alarms tab Step Action 1 Double click on the alarm in the Alarms tab Select none from the dropdown list in the Alarm setup screen Confirm by clicking OK none appears in place of the alarm in the dropdown list LV434104 06 2008 127 The RSU Parameter Setting Software Setting the SDx Module Output Parameters Presentation All alarms on a trip failure and maintenance event and all alarms associated with a measurement activated beforehand in the Alarms tab can be assigned to an SDx module output The SDx module output parameter settings can be accessed using the RSU software under the I Outputs tab V Micrologic RSU C WicrologicVUHDTy ARS AWataView rsa pe Eemetefuxtbers Seta Qweupdese He Mocsologc section e J Rc ge Tap wa Ounbuted Mesdoge 62 4 Electric P N LV4SIR6 j Ei Service BB Basic cece El Aloma E 0s Breaker 1 0
160. rcuit current may be installed downstream of a limiting circuit breaker The breaking capacity is reinforced by the limiting capacity of the upstream device It follows that substantial savings can be made on downstream equipment and enclosures Current and energy limiting curves The limiting capacity of a circuit breaker is expressed by two curves which are a function of the prospective short circuit current the current which would flow if no protection devices were installed m the actual peak current limited current m thermal stress A s i e the energy dissipated by the short circuit in a conductor with a resistance of 1 Q Example Whatis the real value of a 150 kA rms prospective short circuit i e 330 kA peak limited by an NSX250L upstream The answer is 30 kA peak curve next page Maximum permissible cable stresses The table below indicates the maximum permissible thermal stresses for cables depending on their insulation conductor Cu or Al and their cross sectional area CSA CSA values are given in mm and thermal stresses in A s CSA 15mm 25mm 4mm 6mm 10mm PVC Cu 2 97x10 8 26x10 2 12x10 4 76x105 1 32x10 Al 5 41x10 PRC Cu 4 10x10 1 39x10 2 92x10 6 56x10 1 82x10 Al 7 52x10 46 mer PVC Cu 3 4x10 8 26x10 1 62x10 3 31x10 Al 1 39x10 3 38x10 6 64x10 1 35x107 PRC Cu 4 69x10 1 39x10 2 23x10 4 56x10 Al 1 93x10 4 70x10 9 23x10 1 88x10 Example Is a Cu P
161. reaker Screen BM RCU 2 11 f Fichier Entr es d port es Setup Langue Aide DEP Clim Compact NSX IA um Paw Etwh THD Dives 12 378 A Using the RCU For all information on using the RCU software refer to the RCU Software Online Help Software 164 LV434104 06 2008 Operating Assistance 6 4 The Communication Network At a Glance Aim This chapter describes the supervision and monitoring options for an installation using the data transmitted by the communication network What s in this This section contains the following topics Section Topic Page Compact NSX Circuit Breaker Communication 166 History and Time Stamped Information 167 Maintenance Indicators 168 LV434104 06 2008 165 Operating Assistance Compact NSX Circuit Breaker Communication Presentation Remote Readout of the Circuit Breaker Status Remote Readout of the Measurements Remote Readout of the Operating Assistance Information Circuit Breaker Remote Control Compact NSX circuit breakers are integrated in a communication network created using Modbus protocol Modbus communication offers the options of Reading remotely e The circuit breaker status e Measurements e Operating assistance information Controlling the circuit breaker remotely For more information on the Modbus communication network see the Modbus Compact NSX User manual For more
162. rologic 2 3 5 3 and 6 3 A or E electronic trip units Micrologic 2 3 250 400A Micrologic 2 3 630 A E 4 10000 T T E 410000 E 5 000 250A Ir 63 250A 5 000 d P 400 A ir 144 400A 3 1 000 A bs Sak SBS Saas SS Ss SE a 1 000 500 500 200 200 100 100 soj 50 20 20 10 10 sj a 5 t s tis 2 M 2 isd215 10xlr TET FTETTPEHEHIHI 1 5 5 2H 2 1 1 05 05 02 02 01 01 005 005 Ee i 12 xin Sa 1 2 345 7 10 20 30 50 70100 200300 Ga 2 345 7 10 20 30 50 70100 200300 a Ilr _ ir E Reflex tripping Micrologic 5 3 and 6 3AorE 400A Micrologic 5 3 and 6 3 Aor E 630 A P 410000 2 3 5 000 H 2 000 1000 500 200 100 16s 50 20 10 l t s lt isd 1 5 10xir 2 Ed ran N 1 5 2 1 05 02 01 005 l L i teeh P 15 12 In liz 15 11 In 7 1 2345 710 205 7 10 20 30 50 D T 1 2 348710 205 7 1 0 20 30 50 Mae rT 1 in em I it re i a a Reflex tripping 178 LV434104 06 2008 Tripping and Limitation Curves Tripping Curves Micrologic 6 3 A or E electronic trip units cont Micrologic 6 3 A or E ground fault protection D8114772 2 000 Il 40A Ig70 4 1xIn 1000 40A Ig 0 2 1xIn t s 002 001 05 07 1 2 DAS F 1 2345 710 20 30 1 In The tripping curve is identical to that of Mic
163. rologic 6 Ground fault protection is shown separately LV434104 06 2008 179 Tripping and Limitation Curves Compact NSX400 to 630 Motor Feeder Protection Tripping Curves Micrologic 1 3 M and 2 3 M electronic trip units Micrologic 1 3 M 320A ces pani 88 Beg B wan odd 888 8 1 is 15xIn 5 7 1 2345 7 10 20 30 5070100 200300 I 4d __________ gt EE Reflex tripping Micrologic 2 3 M 320A Eg 320A 320 A Ir 160 Corners 1 10 ms T liz 15xIn 20 30 50 70100 200300 2 345 7 10 Mar 57 1 Reflex tripping Micrologic 1 3 M 500A BP Thermal withstand 1 A 4 1 M3 3 5 7 1 2 3457 10 20 30 5070100 200300 A 1l i I i i 500A ir 250 500A i f i TSS liz 13 xIn 20 30 50 70100 200 300 E L dr fe c 9 1 2 345 7 10 180 LV434104 06 2008 Tripping and Limitation Curves Tripping Curves Micrologic 6 3 E M and 6 E M electronic trip units Micrologic 6 3 E M 320 A I HEH TS 500 A 1r2250 500A P 410000 SEH j E i i J TT 320A 1r2160 320A T s t lt 10ms i 15xIn FIT TT TT HTTTII 571 2 345 7 0 20 30 5070100 200300 571
164. rotection if It is reduced in size compared to the phases Non linear loads generating third order harmonics or multiples thereof are installed It may be necessary to switch off the neutral for operational reasons multiple source diagram or safety reasons working with power off To summarize the neutral conductor can be Non distributed 3 pole circuit breaker Distributed not switched off and not protected 3 pole circuit breaker Distributed not switched off but protected 3 pole circuit breaker with ENCT option Distributed switched off and protected 4 pole circuit breaker Compact NSX trip units are suitable for all protection types Compact NSX Possible Types Neutral Protection 3 pole circuit breaker 3P 3D None 3 pole circuit breaker with ENCT 3P 3D None option 3P 3D N 2 Half neutral 3P 3D N Full neutral 3P 3D OSN Oversized neutral 4 pole circuit breaker 4P 3D None 4P 3D N 2 Half neutral 4P 4D Full neutral 4P 4D OSN Oversized neutral P Pole D Trip unit N Neutral protection 48 LV434104 06 2008 The Protection Function Operating Principle Setting the Neutral Protection Neutral protection has the same characteristics as those for phase protection Its pick up can be configured in proportion with the long time Ir and short time Isd protection pick ups It has the same trip time delay values as the long tim
165. rows indicate Maximum Vij MAX for the 3 phase to phase the phases between voltages which the maximum V Maximum ViN MAX for the 3 phase to neutral MAX L L or L N was voltages 4 pole or 3 pole with ENVT option measured Readout and resetting of the maximum P MAX ofthe kW The down arrows indicate active power the 3 phase conductors Readout and resetting of the maximum S MAX ofthe kVA apparent power Readout and resetting of the maximum Q MAX ofthe kvar reactive power 28 LV434104 06 2008 Using Micrologic Trip Units List of the Protection Parameter Screens Micrologic 5 LSI Protection Mode Description of Screens Unit Up Down Arrows Parameter Readout Screens oo i Ir Long time protection pick up value for the phases A The up arrow indicates ios the Ir parameter The down arrows indicate the 3 phases Ir IN Long time protection pick up value for the neutral A The up arrow indicates 4 pole or 3 pole trip unit with ENCT option and neutral the Ir parameter protection active The down arrow indicates the neutral tr Long time protection time delay value at 6 Ir S The up arrow indicates the tr parameter Isd Short time protection pick up value for the phases A The up arrow indicates the Isd parameter The down arrows indicate the 3 phases Isd IN Short time protection pick up value for the A The up arrow indicates neutral 4 pole or 3 pole trip unit with E
166. s 2 0 50 1 00 COS 3 for each phase Only with 4 pole or 3 pole trip unit with ENVT option e Total power factor PF and cos o Maximum values e Per phase of power factors PF1 MAX PF2 MAX PF3 MAX and cos o 1 MAX cos q 2 MAX cos o 3 MAX Only with 4 pole or 3 pole trip unit with ENVT option e Of the power factor PF MAX and cos o MAX Minimum values e Ofthe power factors PF1 MIN PF2 MIN PF3 MIN and cos o 1 MIN cos 2 MIN cos 3 MIN for each phase Only with 4 pole or 3 pole trip unit with ENVT option e Ofthe total power factor PF MIN and cos MIN Measurement of the total harmonic current distortion Ifund 0 gt 1000 10 0 50096 THD for each phase THD I1 THD I2 THD I3 Maximum values of the total harmonic current distortion THD for each phase THD I1 MAX THD I2 MAX THD I3 MAX Minimum values of the total harmonic current distortion THD for each phase THD I1 MIN THD I2 MIN THD I3 MIN Measurement of the total harmonic phase to phase Vfund L L 0 gt 1000 5 0 500 voltage THD V12 L L THD V23 L L THD V31 L L Vfund L N and phase to neutral voltage THD V1N L N THD V2N L N THD V3N L N distortion 1 Maximum values of the total harmonic phase to phase voltage THD V12 MAX L L THD V23 MAX L L THD V31 MAX L L and phase to neutral voltage THD V1N MAX L N THD V2N MAX L N THD V3N MAX L N distortion 1 Minimum values o
167. s The default tg time delay setting value is 0 s with l t OFF Table of tg setting values with the It OFF ON option expressed in second s and the associated non tripping and breaking times expressed in milliseconds ms Parameter Value tg with I t OFF s 0 0 1 0 2 0 3 0 4 tg with 1 t ON s 0 1 0 2 0 3 0 4 Non tripping time ms 20 80 140 230 360 Maximum breaking time ms 80 140 200 320 500 Ground fault protection is a short circuit protection like short time protection The same operating principle applies as for the I t function see Short Time Protection p 43 The ground fault protection test can be performed on the keypad of the Micrologic trip unit see Ground Fault Protection Test Micrologic 6 p 21 This test can be used to check the trip unit s electronic tripping function LV434104 06 2008 47 The Protection Function Neutral Protection Presentation Neutral protection on Micrologic 5 and 6 trip units is adapted to protecting all types of electrical distribution applications against overload and short circuit currents It is available on 4 pole trip units 3 pole trip units with ENCT option It is identical for Micrologic 5 and 6 trip units Description The neutral conductor if it is distributed and identical to the phases in size i e full neutral is normally protected by the phase protection The neutral must have specific p
168. s Over THD Current I3 37 0 500 1 3000 s 1596 40 s 10s Over THD V1N 38 0 500 1 3000 s 596 40 s 10s Over THD V2N 39 0 50096 1 3000 s 596 40 s 10s Over THD V3N 40 0 500 1 3000 s 596 40 s 10s Over THD V12 41 0 500 1 3000 s 596 40 s 10s Over THD V23 42 0 50096 1 3000 s 596 40 s 10s Over THD V31 43 0 500 1 3000 s 596 40 s 10s Over Current lavg 55 0 2 10 In 1 3000 s In 60s 15s Over MAX 1 2 3 56 0 2 10 In 1 3000 s In 60s 15s 1 The type of alarms associated with monitoring the cos and PF indicators must always be consistent with the sign convention IEEE or IEC for the PF indicator LV434104 06 2008 113 Alarms Label Code Setting Range Default Setting Thresholds Pick Up Time Delay Thresholds Time Delay or Drop Out Pick Up Drop Out Under Current IN 57 0 2 10 In 1 3000 s 0 2 In 40s 10s Under Current lavg 60 0 2 10 In 1 3000 s 0 2 In 60s 15s Over 11 Demand 61 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Over I2 Demand 62 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Over I3 Demand 63 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Over IN Demand 64 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Under MIN 1 2 3 65 0 2 10 In 1 3000 s 0 2 In 60s 15s Under 1 Demand 66 0 2 10 5 In 1 3000 s 0 2 In 60s 15s Under I2 Demand 67 0 2 10 5 In 1
169. s values of currents and voltages see Real Time Measurements p 75 The total rms current I ms is the square root of the sum of the square of the rms currents of each harmonic oo 2_ 2 2 2 lims ems we F lorms tit Inrms T The total rms voltage V ms is the square root of the sum of the square of the rms voltages of each harmonic E 2 2 2 2 Vims E gt Vnrms T E Vorms Varms 1 The acceptable harmonic levels are stipulated by various standards and statutory regulations Electromagnetic compatibility standard adapted to low voltage public networks IEC 61000 2 2 Electromagnetic compatibility standards e For loads below 16 A IEC 61000 3 2 e For loads higher than 16 A IEC 61000 3 4 Recommendations from energy distribution companies applicable to the installations The results of international studies have revealed a consensus on the typical harmonic values that should ideally not be exceeded The table below lists the typical harmonic values for voltage as a of the fundamental Odd Harmonics That Are Not Odd Harmonics That Are Even Harmonics Multiples of 3 Multiples of 3 Order n Value as a V4 Order n Value as a V4 Order n Value as a V4 5 696 3 596 2 296 7 596 9 1 596 4 196 11 3 596 15 0 396 6 0 596 13 396 gt 15 0 2 8 0 5 17 2 10 0 596 gt 19 1 5 gt 10 0 2 Note Harmonics of a high order n gt 15 hav
170. sd 1i 3000A Ir Class Isd li 3300A o ois se oos 4 us ise oae ET pon hase ono 3 o7 ie eS m e e ciass A xlo xir dr isd A xir W 72r Isd Micrologic 2 2 100 A trip unit Micrologic 2 2 M 220 A trip unit 10 LV434104 06 2008 Using Micrologic Trip Units Description of Micrologic trip units 5 and 6 are designed to provide multiple functions the Micrologic 5 Protecting the electrical distribution system or specific applications and 6 Trip Units Metering instantaneous values metering demand values for electrical quantities Kilowatt hour metering Operating assistance peak demand values customized alarms operation counters etc e e e Communication Front faces of Micrologic trip units for distribution and motor protection Compact NSX 250 and 630 circuit breakers 3 pole Micrologic 5 2 A 250 trip unit 4 pole SDx and SDTAM indication modules Compact NSX communicating intelligent functional unit with ULP system consisting of A Modbus communication interface B Front display module FDM121 C Compact NSX circuit breaker equipped with a Micrologic trip unit a BSCM module and the NSX cord 6 Micrologic maintenance interface oc 0NvxuNz For more information on the maintenance interface indication and communication modules refer to the Compact NSX circuit breakers User manual LV434104 06 2008 11 Using Micrologic Trip Units Identification In Rating of Micrologic Tr
171. short time tsd parameter protection ON ft inverse time curve active OFF f t inverse time curve not active IN Protection pick up setting for the neutral 4 pole or IN Ir The down arrow indicates 3 pole trip unit with ENCT option and neutral protection the neutral active li Instantaneous protection pick up value setting for the li In The up arrow indicates the phases and for the neutral 4 pole or 3 pole trip unit with li parameter ENCT option and neutral protection active The down arrows indicate the 3 phases Ne Activation of neutral declaration 3 pole trip unit with X Pd Spole trip ENCT option N Neutral protection active noN Neutral protection not active 30 LV434104 06 2008 Using Micrologic Trip Units Micrologic 6 LSIG Protection Parameter Readout Screens Mode Description of Screens Unit Up Down Arrows oo a Ir Long time protection pick up value for the phases A The up arrow indicates 2d the Ir parameter The down arrows indicate the 3 phases Ir IN Long time protection pick up value for the neutral A The up arrow indicates 4 pole or 3 pole with ENCT option and neutral protection the Ir parameter active The down arrow indicates the neutral tr Long time protection time delay value at 6 Ir S The up arrow indicates the tr parameter Isd Short time protection pick up value for the phases A The up arrow indicates the
172. sing Display 1 Set the Ir dial to the maximum value lt a gt Irt sd sd lain the padlock unlocks automatically zzz ff The down arrows indicate all 3 phases the setting is identical on each phase Ri UES 2 She 2 Turn the Ir dial to the setting above r tr isd tsd li xin n Baa N 1A 2B 3C 3 Presetting is complete f the pick up setting value is correct exit the setting procedure no validation is required The long time protection Ir pick up is set at 175 A f the pick up setting value is not suitable fine tune it on the keypad 4 Setthe exact value required for Ir on COO Ir tr isd tsd li xin the keypad in steps of 1 A N WA 2 B 3C 5 Validate the setting the OK Ir tr isd tsd li xin pictogram blinks 6 Confirm the setting the confirmation OK is displayed for 2s Ir tr isd tsd li xin N WA 2B 3C 24 LV434104 06 2008 Using Micrologic Trip Units Example of Setting a Protection Parameter on the Keypad Verification of the Protection Parameter Setting Value The table below illustrates setting the long time protection tr time delay on a Micrologic 5 2 trip unit Step Action Using Display 1 Unlock the protection settings if the Ir tr isd tsd li xin 9 pictogram is displayed t N 1 A 2B 3C 2 Select the Protection parameter D setting mode tr isd tsd li xin N WA 2B 3C 3 Select the tr parameter the up c tr sd
173. ston effect As soon as a very high short circuit current occurs above the instantaneous protection pick up opening of the main contacts creates an electric arc pressure which acts on a piston instantaneously This piston frees the opening mechanism and causes ultra fast circuit breaker tripping The SDTAM module early tripping function can be used to command contactor opening 400 ms before the calculated circuit breaker tripping in the case of Long time protection Phase unbalance protection Jam motor protection Underload motor protection The contactor can be closed again automatically or manually depending on the parameter setting of the SDTAM module see the Compact NSX circuit breakers User manual The figures below illustrate operation of the Jam motor protection without the SDTAM module diagram I and with the SDTAM module diagram II Diagram I Diagram II 1 Compact NSX circuit breaker status White Open Green Closed Black Tripped 2 Contactor status SD contact in the contactor coil White Open Green Closed 3 Motor current 4 Monitoring by jam motor protection White Not active startup Green Active steady state LV434104 06 2008 57 The Protection Function Analysis of Operation The table below describes operation without the SDTAM module diagram I Event Comments A Application motor switches to steady state Jam motor protection
174. strates the choice of power sign in the Services tab Screen Action In the Metering setup Power sign window select the power sign eena setup The power running through the circuit breaker from top to bottom is counted positively In The power running through the circuit breaker from top to bottom is counted negatively P The default value of the power sign is Total active Power ooo kw Power factor convention IEEE E 124 LV434104 06 2008 The RSU Parameter Setting Software Demand Values Setup Quality Indicator Setup The table below illustrates the parameter settings for the demand values calculation windows in the Services tab Screen Action Power demand Window type sliding Interval min Bs 4j Energy acc mode absolute v 2 dropdown lists can be used to set the parameters for calculating the power demand value in the Power demand window Select the type of calculation window in the Window type dropdown list fixed window sliding window synchronized window Indicate the duration of the calculation window using the scroll bars in the Interval dropdown list the duration can be selected from 5 to 60 minutes in steps of 1 minute Current demand Window type Slidding Interval min 15 4 External Neutral Voltage Tap T Reg 3314 31 Current demand setup In the Current demand Interval window indicate the duration of the calculation wi
175. t In Rating and the Dial Position 40A 18 18 20 23 25 28 32 36 40 100A 40 45 50 55 63 70 80 90 100 160A 63 70 80 90 100 110 125 150 160 250A 100 110 125 140 150 175 200 225 250 400 A 160 180 200 230 250 280 320 360 400 630A 250 280 320 350 400 450 500 570 630 The accuracy range is 5 20 Fine tuning is performed on the keypad in steps of 1A The setting range maximum is the preset value displayed by the dial The range minimum is 0 9 times the minimum preset value for the 400 A rating the setting range minimum is 100 A or 0 625 x Ir Example A Micrologic 5 2 trip unit rated In 250 A is preset by the dial at 140 A The minimum preset value is 100 A The fine tuning range on the keypad is 90 140 A The setting value displayed is the value of the trip time delay for a current of 6 Ir The default tr time delay setting value is 0 5 minimum value i e 0 5 seconds at 6 Ir The table below shows the value of the trip time delay in seconds according to the current in the load for the setting values displayed on screen Current in the Setting Value Load 0 5 1 2 4 8 16 tr Trip Time Delay s 1 5 Ir 15 25 50 100 200 400 6 Ir 0 5 1 2 4 8 16 7 2 Ir 0 35 0 7 1 4 2 8 5 5 11 The accuracy range is 20 0 The model representing the conductor heat rise is constructed according to the calculation of a thermal image It allows t
176. t of the trip unit indicate its operational state Isd x Ir The number of LEDs and their meaning depend on the type of Micrologic trip unit Type of Micrologic Trip Description Unit Distribution Ready LED green Blinks slowly when the electronic trip unit is ready to provide gt gt 15A _ gt 90 gt 105 protection 8 O5 wu Overload pre alarm LED orange Shows a steady light when the load exceeds X q 90 of the Ir setting Overload alarm LED red Shows a steady light when the load exceeds 105 of the Ir setting Motor Ready LED green Blinks slowly when the electronic trip unit is ready to provide gt gt 30A ge protection l S Q S 96 TO Overload temperature alarm LED red Shows a steady light when the motor Y Ed thermal image exceeds 95 of the Ir setting Micrologic trip units feature a test port specifically for maintenance actions see Compact NSX circuit breakers User manual This port is designed for Connecting a pocket battery module for local testing of the Micrologic trip unit Connecting the maintenance module for testing setting the Micrologic trip unit and or for installation diagnostics LV434104 06 2008 15 Using Micrologic Trip Units Set of 2 Dials Both dials are assigned to presetting the protection parameters The
177. t on the upstream circuit breaker Q1 is higher than that of the trip unit on the downstream circuit breaker Q2 e Ifthe upstream circuit breaker is in position l t OFF the downstream circuit breakers must not be in position I t ON 3 Energy discrimination e Energy discrimination is provided by the circuit breaker design and build characteristics The discrimination limit can only be guaranteed by the manufacturer e For circuit breakers in the Compact NSX range a ratio of 2 5 between the upstream circuit breaker Q1 and that of the downstream circuit breaker Q2 guarantees total discrimination For ground fault protection only the rules for time discrimination should be applied to the protection Ig pick up and tg time delay Aratio of 1 3 between the lg pick up for ground fault protection of the trip unit on the upstream circuit breaker Q1 and that of the trip unit on the downstream circuit breaker Q2 is usually sufficient The tg time delay for ground fault protection of the trip unit on the upstream circuit breaker Q1 is higher than that of the trip unit on the downstream circuit breaker Q2 If the upstream circuit breaker is in position It OFF the downstream circuit breakers must not be in position I t ON Depending on the staging of circuit breaker ratings and protection parameter settings discrimination can be Limited partial discrimination up to a value Is of the short circuit current Total total discr
178. taneous Protection Presentation Operating Principle Setting the Instantaneous Protection li Pick Up Setting Value Instantaneous protection on Micrologic 5 and 6 trip units is adapted to protecting all types of electrical distribution application against very high intensity short circuit currents It is identical for Micrologic 5 and 6 trip units Instantaneous protection is definite time It can be configured as li pick up and without a time delay Tripping curve 1002503 0 UA No Parameter Description In Trip unit setting range The maximum setting corresponds to the trip unit In rating li Instantaneous protection pick up The li pick up can be set as follows On the Micrologic trip unit set on the keypad Via the communication option using the RSU software The li pick up setting value is expressed in multiples of In The default li pick up setting value is 1 5 In minimum value The table below shows the setting ranges and steps according to the Micrologic trip unit In rating Tip Hii in Rating e ucapen S ENCORE i ts 100 A and 160 A 1 5 15 In 0 5 In 50Aand400A i amp 12 OB 0007 a IS 8n The accuracy range is 10 The non tripping time is 10 ms The maximum breaking time is 50 ms LV434104 06 2008 45 The Protection Function Ground Fault Protection Presentation Operating Principle Setting the Ground Fa
179. the following topics Chapter Topic Page The Micrologic Range of Trip Units 10 Description of the Micrologic 5 and 6 Trip Units 15 Navigation Principle 18 Readout Mode 19 Setting Mode 23 List of Metering Screens 27 List of the Protection Parameter Screens 29 LV434104 06 2008 Using Micrologic Trip Units The Micrologic Range of Trip Units Presentation Micrologic trip units are used on the Compact NSX range of circuit breakers The range of Micrologic trip units consists of 2 families of electronic trip unit Micrologic 1 and 2 trip units without display Micrologic 5 and 6 trip units with display Description of Micrologic trip units are grouped by application A distinction is made between distribution and motor the Micrologic 1 applications and 2 Trip Units In the distribution application Micrologic 2 trip units are adapted to protecting conductors in commercial and industrial electrical distribution In the motor application e Micrologic 1 3 M trip units are adapted to short circuit protection of motor feeders e Micrologic 2 M trip units are adapted to protecting motor feeders on standard applications The thermal trip curves are calculated for self cooled motors The class is set via dials The Micrologic 1 and 2 trip units are described in the Compact NSX circuit breakers User manual Folio o Micrologic 2 2 els ral amp Micrologic 2 2 M lo Ir I
180. tion Ground Fault Protection Test The lg pick up setting value is expressed in multiples of In The default lg pick up setting value is the same as the minimum value read on the dial 0 40 In for trip units rated 40 A 0 20 In for trip units rated 40 A Ground fault protection can be deactivated by setting the Ig dial to the OFF position Ground fault protection can be reactivated even with the Ig dial in the OFF position By fine tuning on the keypad Via the communication option The 2 tables below specify the setting values preset by a dial and setting ranges set on the keypad For trip units rated 40 A For trip units rated higher than 40 A On the keypad the step is 0 05 In Rating 40 A Type of Setting Value or Setting Range xin Preset by a dial 0 40 0 40 0 50 0 60 0 70 0 80 0 90 1 OFF Setting range onthe 0 40 0 40 0 4 0 5 0 4 0 6 0 4 0 7 0 4 0 8 0 4 0 9 0 4 1 0 4 1 OFF keypad Rating gt 40 A Type of Setting Value or Setting Range xin Preset by a dial 0 20 0 30 0 40 0 50 0 60 0 70 0 80 1 OFF Setting range onthe 0 20 0 2 0 3 0 2 0 4 0 2 0 5 0 2 0 6 0 2 0 7 0 2 0 8 0 2 1 0 2 1 OFF keypad The accuracy range is 10 The tg time delay setting value is expressed in seconds The non tripping and breaking times are expressed in millisecond
181. tion pick up jo 6 Ig Ground fault protection pick up Gm 7 tg Ground fault protection time delay m lunbal Phase unbalance protection pick up ESL tunbal Phase unbalance protection time delay a Function W Adjustable LI Non adjustable Each function is reviewed in detail on the following pages 56 LV434104 06 2008 The Protection Function Additional Protection Setting the Protection Reflex Protection SDTAM Module Option Example of Using the SDTAM Module The Micrologic 6 E M trip unit incorporates additional protection functions for motor applications Protection Default Activation Default Setting SDTAM Activation Jam motor prot OFF ljam OFF tjam 5 s Yes Under load OFF lund OFF tund 10 s Yes Long start mtr prot OFF llong OFF tlong 10 s No The additional protections are activated for startup or steady state or in both cases The protection parameters can be set as follows On the Micrologic trip unit using the preset dials depending on the protection parameter and the Micrologic type and on the keypad Via the communication option using the RSU software under the Basic prot tab For more information on the protection parameter setting procedure using the RSU software see Setting the Protection Parameters p 122 In addition to the devices integrated in the Micrologic trip units Compact NSX circuit breakers are equipped with reflex protection pi
182. tputs in latching mode are active The first alarm message Outi or Out2 is displayed on the screen until the alarm is actually acknowledged the output s active position is acknowledged after the alarm is deactivated After acknowledgment of the first alarm the screen displays the second alarm message Out2 or Out1 until the second alarm is actually acknowledged After both acknowledgments the display returns to the screensaver Output 1 SD2 OUT1 normally open is assigned to indicating thermal faults Output 2 SD4 OUT2 normally closed is used to open the contactor They are activated 400 ms before the circuit breaker trips in the case of Long time protection Phase unbalance protection Jam motor protection Micrologic 6 E M Underload protection Micrologic 6 E M LV434104 06 2008 117 Alarms 118 LV434104 06 2008 The RSU Parameter Setting Software At a Glance Aim This chapter describes the protection parameter settings and setting the metering and alarm parameters using the RSU software What s in this This chapter contains the following topics Chapter Topic Page Parameter Setting Using the RSU Software 120 Setting the Protection Parameters 122 Metering Setup 124 Alarm Setup 126 Setting the SDx Module Output Parameters 128 LV434104 06 2008 119 The RSU Parameter Setting Software Parameter Setting Using the RSU S
183. transient state first current peak of approximately 20 ms on contactor closing This current peak is not therefore taken into account when assessing whether the Id pick up has been crossed LV434104 06 2008 55 The Protection Function Steady State The Micrologic 6 E M trip unit considers the application to be in steady state according to the following criteria Start As soon as startup ends End As soon as the 10 of Ir pick up is crossed in a negative direction by the motor current Operating The diagram below shows the 2 operating states for a motor application Diagram Compact NSX circuit breaker status green ON position Contactor status green ON position Current in the motor application Operating states A Startup B Steady state the active states are shown in green AovM2 Protection The figure and table below define the protection functions for Micrologic 6 E M trip units Functions 0 D 160 320A Micrologic 6 3 E M 30 z ER si WS e um pe MAS ss No Parameter Description Function 0 In Trip unit setting range Minimum setting maximum setting trip unitIn O rating 1 Ir Long time protection pick up L m 2 CI Long time protection trip class L 3 Isd Short time protection pick up S nm 4 tsd Short time protection time delay n 5 li Instantaneous protec
184. trip unit calculates the power factor PF from the total active power Ptot and the total apparent power Stot _ Ptot PF 7 Stot This indicator qualifies The oversizing to be applied to an installation s power supply when harmonic currents are present The presence of harmonic currents by comparison with the value of the cos see below The Micrologic E trip unit calculates the cos from the total active power Pfundtot and the total apparent power Sfundtot of the fundamental first order Pfundtot um Sfundtot This indicator qualifies use of the energy supplied If the supply voltage is not too distorted the power factor PF is expressed as a function of the cos and the THD I by PF S 989 JA THD 2 The graph below specifies the value of PF cos as a function of the THD I PF cos o i 1 2 08 a m 0 50 100 150 THD I By comparing the 2 values it is possible to estimate the level of harmonic pollution on the supply LV434104 06 2008 91 The Metering Function Sign for the 2 sign conventions can be applied for these indicators Power Factor PF IEC convention The sign for these indicators complies strictly with the signed calculations of the and Cos o powers i e Ptot Stot and Pfundtot Sfundtot IEEE convention The indicators are calculated in accordance with the
185. ts as a When this figure reaches 100 the contacts must be changed 168 LV434104 06 2008 Appendices At a Glance What s in this Appendix The appendix contains the following chapters Chapter Chapter Name Page A Additional Characteristics 171 LV434104 06 2008 169 Appendices 170 LV434104 06 2008 Additional Characteristics At a Glance Aim This chapter reproduces the tripping and limitation curves from part E of the Compact NSX 100 630 A Catalogue What s in this This chapter contains the following topics Chapter Topic Page Compact NSX100 to 250 Distribution Protection 172 Compact NSX100 to 250 Motor Feeder Protection 176 Compact NSX400 to 630 Distribution Protection 178 Compact NSX400 to 630 Motor Feeder Protection 180 Compact NSX100 to 630 Reflex Tripping 182 Compact NSX100 to 630 Limitation Curves 183 LV434104 06 2008 171 Tripping and Limitation Curves Compact NSX100 to 250 Distribution Protection Tripping Curves TM magnetic trip units
186. uced in any form or by any means whatsoever electronic mechanical or photocopying without the prior authorization of Schneider Electric The data and illustrations in this documentation by no means imply any kind of contractual obligation We reserve the right to modify our products in line with our policy of continuous development The information given in this document may be modified without notice and must not be interpreted as binding on Schneider Electric Title of Documentation Reference Number Compact NSX Circuit Breakers User manual LV434101 Modbus Compact NSX User manual LV434107 ULP system User manual TRV99101 Compact NSX 100 630 A Catalogue LVPED208001EN You can download these publications and other technical information from our website at www schneider electric com All relevant local safety regulations must be followed when installing and using this product For safety reasons and to ensure conformity with the documented system data only the manufacturer is authorized to repair the components We welcome your comments about this document You can reach us by e mail at techoub schneider electric com LV434104 06 2008 About the Book 8 LV434104 06 2008 Using Micrologic Trip Units At a Glance Aim This chapter describes the navigation principles for Micrologic 5 6 and 6 E M trip units What s in this This chapter contains
187. ule FDM121 Not signed when reading the Micrologic LCD display Compact NSX circuit breakers can be powered from either the top usual scenario considered to be the default position or from the underside the sign for the power running through the circuit breaker depends on the type of connection Note By default the Micrologic E trip unit signs as positive the powers running through the circuit breaker supplied from the top with loads connected from the underside If the circuit breaker is powered from the underside the powers must be signed as negative The Power sign parameter can be modified using the RSU software see Metering Setup p 124 82 LV434104 06 2008 The Metering Function Power Calculation Algorithm Presentation Input Data Active Powers Apparent Powers for Each Phase Reactive Powers With Harmonics for Each Phase The algorithms are given for both calculation methods 2 wattmeters and 3 wattmeters The power definitions and calculation are given for a network with harmonics All the calculated quantities are delivered by the Micrologic E trip unit on screen and or via the communication network With the 2 wattmeter calculation method it is not possible to deliver power metering for each phase The input data are the voltages and currents for each phase for more information on calculating harmonics see Harmonic Currents p 87 15 vit gt V
188. ult Protection Ground fault protection on Micrologic 6 trip units is adapted to protecting all types of electrical distribution application against ground fault currents in the TN S system For more details on ground fault currents see the Compact NSX circuit breakers User manual Ground fault protection is definite time It incorporates the possibility of an I t inverse time curve function It can be configured as Ig pick up and as tg trip time delay Tripping curve 100 250 0 tA tg l l lg di No Parameter Description 0 In Trip unit setting range Minimum setting maximum setting trip unit In rating 7 Ig Ground fault protection pick up 8 tg Ground fault protection time delay 9 t Ground fault protection I t curve in ON or OFF position The lg pick up can be set as follows On the Micrologic trip unit preset by the Ig dial and fine tuned on the keypad Via the communication option using the RSU software preset by the Ig dial on the Micrologic trip unit and fine tuned via the RSU software The tg time delay can be set as follows On the Micrologic trip unit set on the keypad Via the communication option using the RSU software The tg time delay setting incorporates activation deactivation of the t option 46 LV434104 06 2008 The Protection Function Ig Pick Up Setting Value tg Time Delay Setting Value It ON OFF Func
189. ur replaces the previous alarm even if it is still active or has not been acknowledged Alarms are recorded in the alarm history see Alarms Menu p 157 Alarm indication on the display module depends on their priority level Priority Real Time Indication History Alarm Clearance From the Display High LED blinking Yes The LED stops blinking and the pop up screen disappears Pop up screen after the Clear validation key is pressed Medium LED steady ON Yes The LED goes off after the alarm history has been viewed Low Yes None No Note The indication of successive high priority alarms is cleared by pressing the Clear validation key a number of times in succession the number of times corresponds to the number of active alarms in reverse chronological order of their occurrence The indication of all medium priority alarms is cleared when the history is viewed An alarm pop up screen is displayed spontaneously on occurrence of a high priority alarm The figure below shows an example of an alarm pop up screen Over Current inst I3 Code 3 4 Oct 2007 AN 04 08 46 000 pm co NOUA O Na Clear Alarm number in order of occurrence Number of alarms recorded in the front display module FDM121 Alarm name Alarm code Date of occurrence of the alarm Symbol for occurrence of the alarm Alarm occurrence time in hours minutes seconds and milliseconds Clear
190. us communication link for access and remote monitoring with the Modbus communication interface module Test setup and maintenance functions with the maintenance module and the LTU and RSU software Thanks to the ULP system the Compact NSX circuit breaker becomes a metering and supervision tool to assist energy efficiency and can be used to Optimize energy consumption by zone or by application according to the load peaks or priority zones Manage the electrical equipment better LV434104 06 2008 145 Operating Assistance Intelligent Functional Unit A functional unit is a mechanical and electrical assembly containing one or more products to perform a function in a switchboard incoming protection motor command and control The functional units are modular and are easily installed in the switchboard Built around each Compact NSX circuit breaker the functional unit consists of A dedicated plate for installing the Compact NSX circuit breaker An escutcheon on the front face to avoid direct access to live parts Prefabricated links to the busbars Devices for creating the connection on site and running the auxiliary wiring through The ULP system can be used to enhance the functional unit with a front display module FDM121 for a display of all the measurements and operating assistance data supplied by the Micrologic 5 or 6 trip units and or a Modbus communication interface module for a link to a Mod
191. ware under the Alarms tab see Alarm Setup p 126 Alarm setup consists of Selecting the alarm priority level Setting the alarm activation thresholds and time delays The alarm description tables indicate for each of the alarms The parameter setting range thresholds and time delays The default setting values See Detailed Tables of Alarms p 112 Each alarm is given a priority level High priority Medium priority Low priority No priority Alarm indication on the front display module FDM121 depends on the alarm priority level see Alarm Processing p 150 The priority level of each alarm can be set by the user according to the urgency of the action to be taken By default alarms are medium priority except for alarms associated with operating indicators which are low priority see Detailed Tables of Alarms p 112 Activation of an alarm associated with a measurement is determined directly by Positive crossing of the associated measurement pick up threshold superiority condition Negative crossing of the associated measurement pick up threshold inferiority condition Equality with the associated measurement pick up threshold equality condition The type of monitoring is predetermined by the RSU software 108 LV434104 06 2008 Alarms Alarm on Superiority Condition Alarm on Inferiority Condition Alarm on Equality Condition Activation o
192. y default the time delay setting is 5 s 116 LV434104 06 2008 Alarms Operation in Open or Closed Forced Mode Acknowledgmen t of Latching Mode Special Features of Latching Mode Assignment of the SDTAM Module Outputs In Open forced mode the output remains in the deactivated position irrespective of the alarm state In Closed forced mode the output remains in the activated position irrespective of the alarm state Note Both these modes can be used for debugging or checking an electrical installation Latching mode is acknowledged via the Micrologic trip unit keypad by pressing the key twice 1 2 3 4 L r 1 A _ L S dr tr isd tsd li xin lw tr isd ted i an Ir tr isd tsd li xin A Alarm Green when activated white when deactivated S Output High position activated low position deactivated Step Event Action Information on the Display 1 Alarm activation The message Outi is displayed Alarm deactivation The Out1 message is still displayed Acknowledgment of active position of the output press The message OK is displayed the GP key twice to confirm 4 The screensaver is displayed If the acknowledge request is made when the alarm is still active Acknowledgment of the output active position has no effect Keypad navigation is possible The screensaver returns to the Out1 message If 2 alarms associated with 2 ou

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