Home

User Manual - Quad Industry

Contents

1. 2010 Siemens Protection Devices Limited P20006 Pasa EM ENS siemens russla com 7SG11 Argus User Manual reverse lead 57 5 67 5 reverse lead 152 5 162 5 reverse lag 117 5 127 5 reverse lag 22 5 32 5 forward lag 82 5 92 5 forward lag 172 5 182 5 0 forward lead 82 5 92 5 90 forward lead 7 5 2 5 reverse lead 87 5 97 5 reverse lead 177 5 187 5 E F reverse lag 87 5 97 5 reverse lag 2 5 7 5 forward lag 97 5 107 5 45 forward lead 67 5 77 5 reverse lead 102 5 112 5 reverse lag 72 5 82 5 General Tests Voltage sensitivity can be tested if required by injecting current of twice setting at the Characteristic Angle The voltage should then be increased from zero until operation of the directional element is indicated Operation should occur at less than 2V for phase fault and less than 3 3V for earth fault In Argus relays where the two out of three gate function is available and is enabled then this feature can be checked Provide a reference voltage Vgc and inject current at the characteristic angle into the A pole and check that no FWD operation occurs Repeat injecting FWD operate currents into two poles simultaneously and the Argus should operate This test can be carried out as shown in Figure 4 5 A single phase voltage is applied across two inputs with the third in reverse and a single pha
2. The LC indicates that the instrument is a default instrument Press ENTER to deselect it See section 2 1 2 1 Default Instruments The LCD is stuck at the General Alarms screen and is displaying Trip Circuit Failure Sx x 1 5 The trip circuit failure feature is enabled and is expecting a healthy status input signal Energise the correct Status Input or disable the trip circuit feature if it is not required 2010 Siemens Protection Devices Limited P20006 Pact EM ENS siemens russla com 7SG11 Argus User Manual Observation Action Cannot communicate with the relay Check that all of the communications settings match those used by Reydisp Evolution E g Protocol set to IEC 60870 5 103 Check that the Tx and Rx fibre optic cables are connected correctly Tx gt Rx and Rx Tx Check that all cables modems and fibre optic cables work correctly Set the line idle setting to Light On Examine the Tx port on the back of the relay with the fibre removed and check that it is glowing red If it is not then the communications board on the case may not be aligned correctly with the processor card socket Contact a VA TECH representative WARNING DO NOT LOOK AT THE FIBRE OPTIC TRANSMITTER FOR A PROLONGED TIME Relays will not communicate in a ring Check that the Data Echo setting on all relays is set to ON network Check that all relays are powered up Check
3. Energise the circuit with primary load current eg 22096 of In If the load power is flowing away from the busbars then the directional earth fault element should indicate operation in the forward zone Check that this is the case Reverse the connections either to the current or voltage input and check for operation in the reverse zone If the load power is flowing toward the busbars then the opposite results should be expected Finally de energise the circuit restore normal connections replace the A phase primary fuse and remove the shorting connections from the A phase V T and from the B and C phase C T connections Figure 4 8 shows the test set up and the resultant applied voltages and currents for a simulated earth fault condition using load current 2010 Siemens Protection Devices Limited P20006 Po EM ENS siemens russia com 7SG11 Argus User Manual 4 3 Putting into Service After tests have been performed satisfactorily the Argus should be put back into service as follows Remove all test connections Where possible the Argus settings should be down loaded to a computer and a printout of the settings produced This should then be compared against the required settings It is important that the correct settings group is active if more than one group has been programmed Reset all event waveform and fault records and reset all counters Replace all secondary circuit fuses and links or close m c b s 2
4. A secondary injection timing test circuit is illustrated in Figure 4 3 Table 4 1 shows theoretical values for each characteristic curve with a time multiplier of 1 0 Record the actual results in Table 4 5 and check that the measured times lie within 5 or 30ms of nominal time Table 4 1 IDMTL Timing Characteristic Time in Seconds Curve 2 xls 5 xls NI 10 03 4 28 VI 13 50 3 38 EI 26 67 3 33 LTI 120 00 30 00 DTL 4 2 3 2 Lowset and Highsets Phase Fault poles can have up to two highsets and one lowset also the Earth fault can have up to two highsets and one lowset The following tests should be applied to each element in the scheme The low high set under test should be programmed to operate an output contact which can then be monitored to detect operation of the element Argus 2 and Argus 6 only If the Argus is to be employed for directional protection then all Directional Control settings should be set to OFF during the following tests Pick up and Drop off Programme the current setting for the low high set characteristic to the required level and set its time delay to 0 00 sec Inject a level of current below the setting and increase the current until the output contact operates Record the Pick up level for each pole in Table 4 6 Table 4 7 or Table 4 8 and confirm that in each case it occurs within 5 of the applied setting For high levels of current the thermal limit of the Argus
5. C E F Table 4 8 Highset 2 setting results Highset 2 Error Pole setting Measured pick up 5 of setting Phase A Phase B Phase C E F Table 4 9 Lowset timing results Lowset delay Error coe setting Measured delay 5 or 30 ms of setting Phase A Phase B Phase C E F Table 4 10 Highset 1 timing results Highset 1 Error rae delay setting Measured delay 5 or 30 ms of setting Phase A Phase B Phase C E F Table 4 11 Highset 2 timing results Highset 2 Error coe delay setting Measured delay 5 or 30 ms of setting Phase A Phase B Phase C E F 2010 Siemens Protection Devices Limited P20006 Pad EM ENS SICITCTIS I USSA CIM 7SG11 Argus User Manual SEF REF Table 4 12 Pick up Drop off Results for SEF REF Measured Error Measured Error pick up 5 of setting drop off 295 of Pick up Pole Pick up setting SEF REF Table 4 13 SEF REF Timing Results Error Delay Delay setting Measured delay 45 or 30 ms of setting Timer 1 Timer 142 Timer 2 Lowset 4 4 1 2 Circuit Breaker Fail Table 4 14 Pick up Drop off Results for CBF Level Detector Measured Error Measured Error roe Presup enn pick up 45 of setting drop off 295 of Pick up Phase A Phase B Phase C E F Table 4 15 Circuit Breaker Fail Timing Results Error CBF delay Delay setting Measured delay 596 or 30 ms of
6. Config sub menu Similarly the current display group is controlled by the Display Group setting 2 1 1 1 Password Entry If at any point a password is required the screen will display Enter password and a four character field The password is entered as described for settings changes above On pressing ENTER if the password is correct the user is logged in and editing will be allowed The user will remain logged in for an hour after the last key press after which he she will be logged out and the password must be re entered for further changes To change the password the Change Password setting in the System Config sub menu should be edited If an attempt is made to change the password the user will first be logged out and will have to log in again to prove authenticity After changing the setting the user will be asked to confirm the password by re entering it If no password has been set the text NOT ACTIVE will be shown as the setting value of the Change Password setting If a password has been set the setting value will be shown as either a 7 or 8 digit number If the password is forgotten this 7 or 8 digit number can be communicated to Siemens Protection Devices Limited by an authorised person and the password can be decoded If a password has been set it can be removed by entering the text NONE into the Change Password setting 2 1 1 2 Yes No Confirmation Some settings require further confirmation of change
7. Fault Boundary System Angles sse ene 23 Figure 4 2 Directional Phase Fault Boundary System Angles sse 23 Figure 4 3 Secondary Injection Test Circuit ene nene nre nennen Figure 4 4 Directional Test Circuits oir reti a tta e topo cete lene teca dee lae de coa dana ade c Fa Sae eR Fa dod Figure 4 5 Two out of three Directional Test Circuit nennen emn eene Figure 4 6 Phase to Earth Primary Injection Test Circuit eem Figure 4 7 Phase to Phase Primary Injection Test Circuit Figure 4 8 Resultant Applied Voltages and Currents for a Simulated Earth Fault Condition using Wood H 34 List of Tables Table 3 1 WIE CHIMP SIZES ctr 17 Table 4 1 IDMTL Timing Characteristic Time in Seconds ooononccnnnnoccnnnoccccnanancnnnnno nono nonn nc nano emen 20 Table 4 2 Connections for Directional Polarity oooonoccinnnnnnnnnccccnnnoccnnnononnnononn conan enne 22 Table 4 3 Limits of Operate Pick up Relay Angle Boundaries eene 23 Table 4 4 Picksup Drop ott Results nte tren arrie ni aa anie Raeann aE Rast e aaia teto PA EEEE pd 28 Table 4 5 Timing Characteristic Results sese cnn nor cnn rr rn 28 Table 4 6 Lowset setting results risegen 28 Table 4 7 alls aM RETE IRIS ICEE 29 Table 4 8 FIQGHSET AT MDRPNICISICIEE Im 29 Table 4 9 l owset timing results uite trn caseaccucese
8. achieve the following Get upload a settings file from the Argus Download a settings file to the Argus Change individual settings Get the active group number Set the active group number Monitor for events and display them spontaneously Upload the complete events file from the Argus Clear the events file Upload waveform records from the Argus Trigger waveform recording Clear waveform records Continuously display instruments i e meters counters relay status ARC status etc Get system data hardware and software details from the relay Reset all flags e Send commands to the relay Allows user to access the command set of the Argus which includes synchronise the clock change settings group trip and close circuit breakers enable and disable auto reclose functions and protection elements The Reydisp Evolution software can be used with all Argus and Modular II protection relays supplied by Siemens Protection Devices Limited Use of the Reydisp Evolution software is menu driven with the settings events waveforms instruments and commands all being available in separate menus The settings are displayed in the same order as on the relay fascia 2010 Siemens Protection Devices Limited P20006 Pai EM ENS siemens russla com 7SG11 Argus User Manual Section 3 Installation 3 1 Unpacking Storage and Handling On receipt remove the Argus from the container in which it was received and inspect it for obvious da
9. available in the Argus relays and these may be phase fault overcurrent earth fault overcurrent or SEF REF depending on the model 2010 Siemens Protection Devices Limited P20006 Pl EM ENS siemens russia com 7SG11 Argus User Manual 1 3 1 1 Phase fault and Earth fault Overcurrent Phase fault and earth fault inputs each have four independent overcurrent elements Each has a current setting and timing characteristic as illustrated in Figure 1 1 The principal overcurrent element is selectable between IDMTL inverse definite minimum time lag and DTL definite time lag characteristics Four IDMTL curves are available namely normal inverse NI very inverse VI extremely inverse El and long time inverse LTI The IDMTL algorithms operate correctly for developing faults where current varies with time Two independent highsets and an independent lowset are included with shaped instantaneous characteristics and DTL The instantaneous outputs are designed for transient free operation where high values of system X R are experienced Time s IDMTL current setting w time multiplier ys highset 1 current setting ps1 highset 1 time delay setting ps2 highset 2 current setting ps2 highset 2 time delay setting ts lowset current setting t t t l S tis lowset time delay setting Current Figure 1 1 Overcurrent Characteristics 1 3 1 2 Sensitive Earth fault Restricted Earth fault Sensitive earth fault a
10. comms only sse 15 Section Ee I yz At OM LEER 16 3 1 Unpacking Storage and Handling reniei deac eda da ea aata ennemis 16 3 2 Recommended Mounting Position eesssesssseeeenen enne naar rra 16 3 3 Relay DIMENSIONS Me 16 UP ME LT 16 SEM NS 17 3 60 el E Aser 17 Section 4 COMMISSIONING eU 18 AD BeTOre TOS iG CD nn e 18 PNIS CCP 19 4 3 Putting into Service 27 4 4 Commissioning Record Tables cececcesceeesecnetaedecsecaedheeesectecsevecdedeedieceesedeedadeeceeuedeeceedagaadeedeess 28 Section 5 Testing and Maintenance euo di a Hau ou Leg dong ve elle 35 S MB IDE cic HM 35 9 2 VII ci 35 5 3 lg rerfle aoreet 35 5 4 Defect ROD le e aaa 37 2010 Siemens Protection Devices Limited P20006 Pl EM ENS siemens russia carm 7SG11 Argus User Manual List of Figures Figure 1 1 Overcurrent Characteristics eee nennen nennen nennen enne nennen nennen 7 Figure 2 1 Menu Structure for Argus 1 2 4 and 6 Relays sssssesssee eene 13 Figure 4 1 Directional Earth
11. for the forward and reverse zones of each pole Note that if a pole is programmed to operate in one direction only then only the angles for that operating zone need be checked Check that the required directional settings have been correctly applied including the characteristic angles Each directional operate zone has two boundaries of operation at leading and lagging boundaries of with respect to V To find the boundaries of operation for a particular pole inject current and volts at the characteristic angle and check that FWD is indicated Then adjust the phase angle to find the lagging drop off boundary ie lags V giving a negative angle the FWD indicator disappears at the drop off angle Set the angle back until the FWD indicator reappears and adjust the phase angle to find the leading drop off angle positive angle To measure pick up angles set the applied phase angle to be in the reverse zone and reduce the phase angle until FWD is displayed Do for both leading and lagging boundaries The reverse zone boundaries can be found in a similar fashion Initially inject at the characteristic angle plus 180 and check that REV is indicated Then find the pick up and drop off angles at the leading and lagging boundaries Find the boundaries of the operate zones for each pole and record them in Table 4 16 If the test equipment is not accurate enough to measure the boundary then an all or nothing test could be applied to ver
12. highest value is used for alarm and display purposes It is also possible to initiate the I summation algorithm from an external tripping device via the status input if required The trip count and the 1 summation count can be reset by either of two methods e when viewing the appropriate instrument screen and pressing the TEST RESET button e inthe settings menu using appropriate reset setting 1 3 4 Measurements Analogue values can be displayed in primary or secondary quantities on the LCD screen In addition the values can be obtained via the communications port 2010 Siemens Protection Devices Limited P20006 hd EM ENS siemens russia com 7SG11 Argus User Manual Available Instruments e Primary current RMS values on a phase by phase basis indicated by upper case letters e g A B C E SE sensitive earth e Secondary current RMS values on a phase by phase basis indicated by lower case letters e g a b c e o 9 Primary phase voltages Primary phase phase voltages Secondary voltages Apparent power and power factor Real and reactive power WHr forward and reverse VarHr forward and reverse Rolling and Max demand la Ib Ic Rolling and Max demand W Rolling and Max demand Var Direction Autoreclose status Output contacts Status inputs Trip circuit healthy failure Trip counters 1 summation Number of waveform and event records stored Time and date Starters Power on cou
13. minor variations may be noticed A detailed release history for each type is given in the appropriate Diagrams and Parameters document The copyright and other intellectual property rights in this document and in any model or article produced from it and including any registered or unregistered design rights are the property of Siemens Protection Devices Limited No part of this document shall be reproduced or modified or stored in another form in any data retrieval system without the permission of Siemens Protection Devices Limited nor shall any model or article be reproduced from this document unless Siemens Protection Devices Limited consent While the information and guidance given in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the result of negligence or any other cause Any and all such liability is disclaimed 92010 Siemens Protection Devices Limited Si EM ENS siemens russla com 7SG11 Argus User Manual Contents Section 1 Relay DESCHPTON e 4 IPS CLADE 4 1 2 HataWaEe crecer A ERE ERE 4 1 3 sre H 6 Section 27 Operation Gulde reete rrr ERE Rte ert peser LEER IE Renier erben i proe Pintores 12 2 1 User Interface Operation ba 12 2 2 Operation using Reydisp Evolution IEC 60870 5 103
14. must not be exceeded Refer to the performance specification for the Argus which defines the thermal limits Manual testing runs the risk of exceeding the thermal limit When manually testing a high setting it is not considered necessary to establish the exact pick up level and the following procedure is recommended to ensure that the thermal limit is not exceeded 1 Switch on the test supply and quickly raise the current to just below 95 of the set value and then switch off the test supply immediately Switch back on and then off in quick succession to prove non operation Do this five times with a delay between each test of about 10 seconds Test similarly at 10596 of setting to prove operation Switch off reset the trip indication and then switch on and off five times quickly to prove operation for each injection If computer test set is being used then the pick up level and timing can be measured provided that the automatic test is set up to apply pulses of current to avoid exceeding the thermal limit Timing The operating time should be tested with a current of 5 times setting applied and with the required time delay set Output contacts for the Low Highsets must be programmed and a time interval meter connected to the correct terminals The timer should be started by the source and stopped by the Low Highset contacts Each phase should be tested Record the results in Table 4 9 Table 4 10 and Table 4 11 and confirm that the measu
15. overcurrent elements The element can be set to undervoltage or overvoltage with variable hysteresis Overcurrent blocking occurs from each phase independently but a common trip output is provided 1 3 1 5 Cold Load Pickup Argus 4 and Argus 6 only The Argus can apply higher current settings with longer time delays after the circuit breaker has been open for a programmable time On closing of the circuit breaker these higher settings are applied for a programmable time or until the measured current has fallen to normal levels 1 3 1 6 Circuit Breaker Fail The circuit breaker fail function operates by monitoring the current following a trip signal and issues an alarm if the current does not cease within a specified time interval A two stage time delayed output can be used to operate output contacts to retrip the same circuit breaker using a second trip coil or to backtrip an upstream circuit breaker The CBF timer 1 starts to operate following a trip output from any one of the protection algorithms or an external input providing there is current above the circuit breaker fail current setting An output is issued after the CBF timer 1 delay If current is still above the setting CBF timer 2 then begins to operate and will issue a second output after the CBF timer 2 delay 1 3 2 Control 1 3 2 1 Autoreclose Argus 4 and Argus 6 only Integrated auto reclose is available as an ordering option The Argus incorporates a 5 trip 4 close auto
16. that all relays have unique addresses Status inputs do not work Check that the correct DC voltage is applied and that the polarity is correct Check that the status input settings such as the Pick up and Drop off timers and the status inversion function are correctly set Relay instrument displays show small This is normal The relay is displaying calculation noise This will currents or voltages even though the not affect any accuracy claims for the relay System is dead If the above checklist does not help in correcting the problem please contact Siemens Protection Devices Limited 2010 Siemens Protection Devices Limited P20006 Poi EM ENS siemens russla com 7SG11 Argus User Manual DEFECT REPORT Please copy this sheet and use it to report any defect that may occur Customers Name amp Address Contact Name Telephone No Fax No Supplied by Date when installed Site Circuit Software Version Article No Report Required Y N Date Found During During From a System Other please state Commissioning Maintenance Fault Product Name Serial No Copy any message displayed by the relay Describe Defect Describe any other action taken Signature Please print name Date For Siemens Protection Devices Limited use only Date Received Contact Name Reference No Date Date of Reply Date Cleared Acknowledged To
17. 010 Siemens Protection Devices Limited P20006 Patel EM ENS siemens russia com 7SG11 Argus User Manual 4 4 Commissioning Record Tables These tables should be completed during commissioning as a record of the commissioning tests Relay Type Serial Number Substation Feeder Identity Tester Date 4 4 1 Secondary Injection Tests 4 4 1 1 Overcurrent IDMTL DTL Characteristic Table 4 4 Pick up Drop off Results Pick up error Measured Drop off error Pole Pick up setting Measured pick up 44 of 105 drop off 295 of pick up Phase A Phase B Phase C E F Table 4 5 Timing Characteristic Results 2x Is 5x Is Characteristic Pole NI VI El Error Error LTI DTL Delay 5 or Delay 5 or 30 ms 30 ms Phase A Phase B Phase C E F Lowset and Highsets Table 4 6 Lowset setting results A Error Pole Lowset setting Measured pick up 45 of setting Phase A Phase B Phase C E F 2010 Siemens Protection Devices Limited P20006 Pal EM ENS siemens russia corm 7SG11 Argus User Manual Table 4 7 Highset 1 setting results Highset 1 2 Error dis setting Measured pick up 5 of setting Phase A Phase B Phase
18. 4 13 and confirm that the measured delays are within 5 of the set values 4 2 3 4 Circuit Breaker Fail To measure the pick up level temporarily set a status input to operate the external CBF function then invert the input this enables the element The delay time should be set to zero Inject current and record the pick up level in Table 4 14 The 2 stage circuit breaker failure feature should be tested if required by the application If only one of the stages is to be used then only CBF delay 1 need be tested In order to test both stages of the CBF feature then the two CBF delays should be programmed to operate separate output contacts other than the main trip output They should also be programmed with their appropriate delays and current level setting CBF delay 1 is initiated by the main trip output and current above the setting after timing out it generates a trip output of its own and also initiates the CBF delay 2 which subsequently generates a final trip output Connect the main trip output to start a time interval meter Connect the output from CBF delay 1 to stop both the timer and the current source Inject current of 2x setting into any pole and record the first CBF time delay in Table 4 15 Connect the CBF delay 1 output to start the time interval meter Connect the output from CBF delay 2 to stop both the timer and the current source Inject current of 2x setting into any pole and record the second CBF time delay Check tha
19. 7SG11 Argus User Manual 7SG11 Argus Overcurrent Protection Relays Document Release History This document is issue 2010 02 The list of revisions up to and including this issue is Pre release 2010 02 Document reformat due to rebrand 2006 08 Fourth issue VA Tech references replaced by Siemens Protection Devices Ltd 2006 03 Third issue Additional modifications software revision histories updates Second issue Improved CBF function additional metering Modbus protocol extended timers 2004 05 added 2002 12 First issue Software Revision History Since introduction in 1995 Argus overcurrent relays have undergone a number of modifications to improve functionality and features provided The content of this manual is directly applicable to the software versions listed below When used with other versions minor variations may be noticed A detailed release history for each type is given in the appropriate Diagrams and Parameters document Argus 1 and Argus 2 2434H80023 R10 release date November 2005 Argus 2 500 2434H80040 R8 release date November 2005 Argus 4 and Argus 6 2716H80005 R5 release date March 2005 Hardware Release History Since introduction in 1995 Argus overcurrent relays have undergone a number of minor changes to hardware The content of this manual is directly applicable to Argus hardware in Epsilon cases produced since March 2002 When used with earlier versions
20. 8 Is 4 2 7 2 Primary Directional Tests This applies to Argus 2 and Argus 6 relays only General If the Argus being commissioned is directional then the voltage circuits should be tested to ensure correct polarity It is recommended that the Argus be connected to the C T s and V T s with the polarity as shown in the Diagrams and Parameters section of this manual With the polarity connections shown Argus relays will indicate FORWARD direction of current when power is flowing away from the switchboard busbar and REVERSE when flowing into the busbar For an outgoing feeder FORWARD is the normal direction of power flow and for an incoming circuit FORWARD is opposite to the normal direction of power However normal application of directional protection is 2010 Siemens Protection Devices Limited P20006 Pa EM ENS siemens russia com 7SG11 Argus User Manual to initiate a trip when fault current flows away from the busbar For an incomer this requires a parallel supply Source In both cases therefore the FORWARD direction is the trip direction for normal applications Argus 2 and 6 protection elements can be programmed to trip either NON directional FORWARD REVERSE or both TRI STATE operation The FWD and REV TRI STATE operation settings can be user programmed independently to different sets of setting values Phase Directional Element Using a phase sequence indicator first check tha
21. DMTL lt HS1 gt HS2 IA 12 32xln This information scrolls along the bottom line of the display This record can be viewed again later in the Fault Data displays The five most recent faults are stored with the oldest being lost when a new fault occurs The five faults are numbered from 1 to 5 with fault 1 being the most recent 2 1 4 Software Information The identity of the software present in the Argus can be displayed as follows Ensure that the Relay Identifier is displayed on the LCD if necessary press the CANCEL key until it shows Press and hold the CANCEL key then press the TEST RESET key then release the CANCEL key and TEST RESET key together The software article numbers and revisions will now be displayed on the LCD Press any key to return to the Relay Identifier 2 1 5 Operation with Front Cover Fitted When the clear plastic cover is fitted only the down and right TEST RESET keys are accessible using through cover buttons These buttons are recessed to prevent inadvertent operation of the keys Referring to Figure 2 1 it can be seen that all areas of the menu can be accessed using the and keys but that settings cannot be changed since the ENTER key is not accessible Counter instruments can be reset while viewing them by pressing RESET then using and RESET to confirm 2 2 Operation using Reydisp Evolution IEC 60870 5 103 comms only Reydisp Evolution provides the means to
22. Printer to operate from the above PC Optional Use of PC to Facilitate Testing The functions of Reydisp Evolution see section 2 2 can be used during the commissioning tests to assist with test procedures or to provide documentation recording the test and test parameters One method is to clear both the waveform and event records before each test is started then after the tests upload from the Argus the settings events and waveform files generated as a result of application of the tests These can then be saved off to retain a comprehensive record of all tests This method is particularly useful when auto reclose sequences are being checked When testing is completed then the event and waveform records should be cleared and the settings file checked to ensure that the required in service settings are being applied 4 1 2 Precautions Before electrical testing commences the equipment should be isolated from the current transformers and the CTs should be short circuited in line with the local site procedures The tripping and alarm circuits should also be isolated where practical The provision and use of secondary injection test sockets on the panel simplifies the test procedure Ensure that the correct d c auxiliary supply voltage and polarity is applied See the relevant scheme diagrams for the relay connections Check that the nominal secondary current rating of the current transformers has been correctly set on the P F Rating E F Ra
23. al 1 Check the direction of each pole in turn by connecting to the appropriate terminals Table 4 2 shows the polarising quantity for each pole Figure 4 4 shows a directional test circuit for one type of Argus 2 Table 4 2 Connections for Directional Polarity Overcurrent pole Polarising voltage Phase A Vac Phase B VcA Phase C VaB Earth fault 3Vo 2 Inject rated current and apply rated voltage at the CA MTA phase angle setting Then for each pole monitor the directional display in the instrument menu and check that indication of forward current FWD is displayed 3 Repeat all of the above with the current connections reversed Indication should now be given of reverse REV current flow 4 To check the direction of the earth fault element on the Argus AG2xx series or the AG2xx 5xx series when connected Ph Ph the 3Vo must then be applied to the residual voltage input To check the direction of the earth fault element on the AG2xx 5xx series of relays when connected Ph N remove the voltage from the phase under test keeping the voltage healthy on the other two phases Where only single phase equipment is available then reverse voltage must be applied to the phase under test For all of the above tests inject residual current at the MTA into the earth fault input to confirm correct directional operation Boundary of Operation The purpose of this test is to ensure that the operating angles are correct
24. are made within hour then the user will automatically be logged out re enabling the password feature Note that the password validation screen also displays a numerical code If the password is lost or forgotten authorised personnel can communicate this code to Siemens Protection Devices Limited and the password can be retrieved The Argus is supplied with the password set to NONE which means the feature is de activated 2010 Siemens Protection Devices Limited P20006 Pot d EM ENS siemens russia com 7SG11 Argus User Manual Section 2 Operation Guide 2 1 User Interface Operation The basic settings displays flow diagram is shown in Figure 2 1 This diagram shows the main modes of display Linesman Mode Argus 4 and 6 only Settings Mode Instrument Mode and Fault Data Mode When the Argus leaves the factory all data storage areas are cleared and the settings set to default values as specified in the Argus Overcurrent Technical Reference document When the Argus is first powered on the screen will display the default relay identifier and Factory Settings The identifier can be changed to a user definable identifier or code if the user prefers Once any setting changes have been made the Factory Settings text will be replaced by Relay Settings On each subsequent power on the screen that was showing before the last power off will be displayed The menu system is navigated as shown in Figure 2 1 Note howe
25. cates that DC volts have been applied to the Argus and that the relay is operating correctly If a permanent fault is detected by the internal watchdog then this LED will continuously flash Starter LED This self resetting yellow LED indicates that any pole is measuring current above the IDMTL DTL current setting Trip LED This latching red LED indicates that a trip as defined by customer setting has occurred Such a trip may have been issued by any of the protection functions The user will be given more detailed information concerning the trip from the LCD screen After being energised the LED can be reset by pressing the TEST RESET key or by energising a status input which has been programmed to reset latched relays and the trip LED CB Open LED Argus 4 and Argus 6 only This green LED indicates that the circuit breaker is open CB Closed LED Argus 4 and Argus 6 only This red LED indicates that the circuit breaker is closed Keypad Five keys are provided to control the functions of the Argus by moving around the menu display They are labelled 4 y ENTER CANCEL and gt The gt key is also labelled TEST RESET Only two push buttons are accessible when the front cover is in place These are the and buttons which allow the user to view all displays including settings but not to change setting values 1 2 4 Current and Voltage Inputs Current Inputs Two types of current input are incor
26. cked up when the trip signal was issued for example 25 04 17 25 51 TRIPAE This display is held until the TEST RESET button is pressed upon which the LED turns off and any latched output relays are reset The Argus enters Fault Data Display Mode at which point the fault indication screen is replaced with a more detailed scrolling fault data display Fault 1 lt lt lt fault data gt gt gt This shows date and time of fault the active settings group at the point of trip plus for each pole the elements picked up and the current measured at the time of trip The information scrolls along the bottom line of the display External alarms are also shown in the fault record e g 12 05 04 15 32 47 2525 G1 PHASE ALS lt IDMTL gt HS1 HS2 IA 12 32xln The fault record is viewed in the Fault Data Display Mode of the menu display system and can be viewed again at a later date Fault records are stored for the previous five faults The five displays are numbered from 1 to 5 with fault 1 indicating the most recent record It is necessary to define a fault for these purposes Depending on the application some of the protection outputs may be used for alarm purposes rather than for tripping In such cases it would be undesirable for the Argus to light its TRIP LED and give fault indication Therefore a Fault Trigger setting is included to allow the fault condition to be defined by selecting any combi
27. d Siemens Protection Devices Limited reserves the right to charge for any subsequent repairs 3 2 Recommended Mounting Position The Argus uses a liquid crystal display LCD which is used in programming and for operation The LCD has a viewing angle of x70 and is back lit However the best viewing position is at eye level and this is particularly important when using the built in instrumentation features The LCD contrast will normally be correct for all positions and environments however it can be adjusted if required using the adjustment screw mounted through the fascia to the upper right of the LCD The Argus relay should be mounted on the circuit breaker or panel to allow the operator the best access to the functions 3 3 Relay Dimensions The following drawings are available which give panel cut out and mounting details Refer to the appropriate Diagrams and Parameters part of the documentation for a cross reference of case sizes and models e 2995X10004 Overall Dimensions and Panel Drilling for Epsilon E4 Case e 2995X10006 Overall Dimensions and Panel Drilling for Epsilon E6 Case e 2995X10008 Overall Dimensions and Panel Drilling for Epsilon E8 Case 3 4 Wiring The Argus should be wired according to the scheme requirements with reference to the appropriate wiring diagram Refer to the appropriate Diagrams and Parameters part of the documentation for a cross reference of wiring diagrams and models 3 4 1 Communications Fibre o
28. d Aeg sdunes 7 seDeyo eseud oes uonoajoJd D MBIA O amp NUS seBeyo JUANDA uonoojoJd aseyd aseyd fueulug y soDeyoA eseud Jewld y sjueuno fag eX E o M 0 amp NUS Ssjueuno Kjeulud wajshs Byuo2 uejs s es 9polN epo N sPumes jueuunggsu ig pue snbiy Laser Ayquep aJemyos d edA Aejay G2 sano ejdninuu yym sbunies Jo 1SI susaJos ejdninuu UO SA JO 181 IN e o1 uo usas se Aejdsip uaaJos AAA Key e das yesoy Jajuno9 du1v Jesvo sul TV OHVv WIe 99y Y eso 2 asoj99y 9 dur nox907 3 dip Ajuo sjepoui 9 pue p snbiy Bupom SS onm 0J U02 epeo Jody 2 peos CSD AAA MO epo y uewseurq Rice ee eee 9 pue y snbiy CO CAE cache cta A CREER A ei fee cd A Menu Structure for Argus 1 2 4 and 6 Relays Figure 2 1 P20006 Pat EM ENS 2010 Siemens Protection Devices Limited siemens russla com 7SG11 Argus User Manual Eight settings groups are stored within the Argus Only one of these is active at a time and only one can be displayed at a time Some settings have a common value across all groups If a setting has different values across the groups this is indicated by Gn in the top left of the display while the setting is being displayed where n is the number of the current display group The active group can be switched from one to another using the Active Group setting in the System
29. d for the duration of fault current but with a user programmable minimum time Alternatively outputs can be programmed to operate as latching contacts if required Latched output relays can be reset either by pressing the TEST RESET button by sending an appropriate communications command or electrically via a status input A trip test feature is provided to operate the output contacts 1 2 6 Auxiliary Supply A d c voltage of the appropriate level must be supplied onto the correct terminals on the rear of the case 1 2 7 Communications A pair of fibre optic oT BFOC 2 5 bayonet connectors optimised for glass fibre are fitted to the rear of the case one transmit and one receive These are used as the standard interface for all communications with the Argus An alternative RS485 option is available The Argus is supplied using IEC 60870 5 103 as its default communications Modbus is available via a setting in the communications menu 1 2 8 Terminals These are of a modular design Depending on the model either 1 2 or 3 terminal blocks will be fitted with 28 terminals per block All inputs and outputs except for the serial communications interface are made through these connectors 1 3 Functionality 1 3 1 Protection Argus provides comprehensive overcurrent protection with programmable input and output matrix In addition 8 setting groups enable a flexible approach to protection settings Up to four current measuring inputs are
30. e g Ammeter display of the Primary Load Currents and in addition the TRIP Count The screens of interest to the user e g those required to be presented to a visiting engineer for record purposes can be selected by the user by pressing ENTER when viewing the required screen A Screen Set As Default message will be flashed up and will appear at top right of that screen To cancel a screen default scroll to that screen and press ENTER Screen Cleared As Default will be flashed up and the symbol will be cleared If no button is pressed for the duration of the user set Default Time Delay then each Default Screen is displayed in turn for five seconds each If any General Alarm is raised then the General Alarm screen is presented in the Default Screen sequence The General Alarm screen which has a scrolling display will present one pass of its display Any key press while in default screens will result in a return to the Relay Identifier screen at the top of the menu structure 1 3 5 System Data Data records are available in three forms fault records waveform records and event records 2010 Siemens Protection Devices Limited P20006 Pl EM ENS siemens russia com 7SG11 Argus User Manual 1 3 5 1 Time Stamping All records are stamped with time and date using the Argus real time clock feature If the Argus is de energised then a capacitor provides a back up supply to the real time clock for a li
31. e settings group For setting group change by status input the Settings Group Select setting is used to configure any one or more of the status inputs to select a settings group The selected group is then made active if the status input is energised and remains active for as long as the input remains energised If multiple status inputs are energised the lower or lowest number status input takes precedence For instance if status input 1 activates settings group 5 and status input 3 activates settings group 2 and both status inputs are energised the Argus would operate in settings group 5 Self Monitoring The Argus incorporates a number of self monitoring features listed below each of which initiates a reset sequence that can be used to generate an alarm output In addition the Protection Healthy LED gives visual indication e Power supply watchdog e Microprocessor watchdog e Program memory test using CRC Any failure is detected with sufficient time warning so that the microprocessor can be shut down in a safe and controlled manner Password Feature The programmable password feature enables the user to enter a 4 character alpha numeric code As soon as the user attempts to change a setting the password is requested before any setting alterations are allowed Once the password has been validated the user is said to be logged on and any further changes can be made without re entering the password If no more changes
32. e three phase load current Reverse the connections to the current coils and see that the Argus restrains If the flow of current is such that the Argus should restrain see that in fact it does restrain then reverse the connections to the current coils and see that it operates This test is based on the assumption that the load current has a normal power factor If however the power factor is very low leading or lagging difficulties may be encountered For example a very low leading power factor with power in the forward direction may cause a quadrature connected protection to restrain When the test is complete all connections must be restored to normal If any settings have been changed in proving the direction restore them to the original settings and repeat secondary injection testing as considered necessary Earth Directional Element If the application includes a directional earth element polarised in the normal fashion from the open delta winding of a voltage transformer then the following procedure should be followed Disconnect the A phase primary input to the voltage transformer Where primary fuses exist this can be done by removing the A phase fuse Short circuit the A phase main secondary winding This should be done on the load side of the V T secondary circuit protection eg fuse or miniature circuit breaker MCB Short circuit and disconnect the current transformer secondary winding connections on the B and C phases
33. emens Protection Devices Limited or one of its agents should be contacted see defect report sheet in section 0 If removal of the Argus from its case is required the procedure described in section 3 1 should be followed 5 3 Troubleshooting Table 5 1 Troubleshooting Guide Observation Action Relay does not power up Check that the correct auxiliary DC voltage is applied and that the polarity is correct Relay won t accept the password The Password being entered is wrong Enter correct password If correct password has been forgotten note down the Numeric Code which is displayed at the Change Password screen e g Change password 1234567 To retrieve the password communicate this code to a Siemens Protection Devices Limited Protection Healthy LED flashes General failure Contact Siemens Protection Devices Limited LCD screen flashes continuously The LCD has many possible error messages which when displayed will flash continuously These indicate various processor card faults General failure Contact Siemens Protection Devices Limited Backlight is on but no text can be seen Adjust the contrast Scrolling text messages are unreadable Adjust the contrast Relay displays one instrument after another with no user intervention Default instruments are enabled Remove all instruments from the default list and only add those which are required 120A B 108A E
34. en these terminals and all other terminals connected together and to earth Argus 2 and Argus 6 only Connect together all of the V T terminals and measure the insulation resistance between these terminals and all other terminals connected together and to earth Satisfactory values for the various readings depend upon the amount of wiring concerned Where considerable multi core wiring is involved a reading of 2 5 to 3 0 megohms can be considered satisfactory For short lengths of wiring higher values can be expected A value of 1 0 megohm should not be considered satisfactory and should be investigated Remove temporary connections 4 2 3 Secondary Injection Tests Select the required configuration and settings for the application Note that the Argus may be connected as either a 1A or a 5A rated device The user should check this before commencing secondary testing For all high current tests it must be ensured that the test equipment has the required rating and stability and that the Argus is not stressed beyond its thermal limit 4 2 3 1 IDMTL DTL Characteristics Argus 2 and Argus 6 only If the Argus is to be employed for directional protection then all Directional Control settings should be set to OFF during the following tests Pick up and Drop off This test checks the accuracy of the current setting for the main overcurrent characteristic Note that SEF REF poles are considered later Inject single phase current into
35. en two events This allows for example accurate measurement of the Reclose delay Dead time or the Reclaim delay without external equipment The following information can be easily measured from a single Sequence event record Instantaneous Protection element operate times Circuit Breaker first Trip time Protection Starter element reset time Reclose Dead Time delay Circuit Breaker Close time Delayed Protection operate times Subsequent Circuit Breaker Trip and Close times Subsequent Reclose delays Reclaim delay Overall sequence time Status Interlock timing Also the Waveform Record display for each trip enables time measurements to be made between the analogue waveforms and the digital binary traces of the Status inputs and output relays Measurement of the relative timing of the a c current waveforms and the Circuit Breaker Status contacts provides valuable data on the condition of the Circuit Breaker operate times In addition the Instruments provided by the Argus can be continuously monitored via Reydisp during a test sequence providing information on the state of the Argus and Circuit Breaker during a test sequence 2010 Siemens Protection Devices Limited P20006 Pal EM ENS siemens russla com 7SG11 Argus User Manual The sequence provided by the Argus in response to a permanent fault should be checked to ensure that the programmed sequence is as given for a Phase Fault and is also applicable to Earth Fault and o
36. eset them You will be asked to confirm this using a Yes No confirmation as described in section 2 1 1 2 but TEST RESET can also be used to confirm rather than pressing ENTER 2 1 3 Fault Displays As shown in Figure 2 1 the occurrence of a fault as defined by the Fault Trigger setting will cause the red trip LED to be lit and the trip display will be shown This gives the date DD MM and time HH MM SS of fault and the poles that were active at the time of trip Example 12 05 17 25 51 TRIPAE Pressing the TEST RESET key will extinguish the trip LED reset latched output relays and change the display to the scrolling fault display giving a more detailed fault record On the top line of this display the fault number 1 to 5 is displayed The bottom line gives the date and time of trip DD MM YY HH MM SS ssss the active group and then for each pole of the Argus relay 2010 Siemens Protection Devices Limited P20006 Patel EM ENS siemens russia com 7SG11 Argus User Manual Current at time of trip The voltage at time of trip certain Argus 2 models only Forward or reverse direction of current flow directional relays only Elements which were active above setting at time of trip Elements that operated for the trip to occur are indicated by lt gt around the element Example Fault 1 lt lt lt fault data gt gt gt where fault data is 25 02 01 17 25 51 2525 G1 PHASE A LS I
37. ged with the full date and time and actual event condition every 2 5msec The following events are logged 2010 Siemens Protection Devices Limited P20006 Patel EM ENS siemens russia com 7SG11 Argus User Manual Change of setting though not the actual setting changes Also indication of which group of settings is active Change of state of output relays Change of state of status inputs Change of state of any protection characteristic Trip indication reset Trip test Trip supply failure Circuit Breaker maintenance alarms Circuit breaker failure The event storage buffer holds 500 records When the event buffer is full then any new record overwrites the oldest Event records are stored in RAM with a capacitor providing back up during breaks in auxiliary supply The event record store can be erased when viewing the events stored instrument screen and pressing the TEST RESET button 1 3 6 General Multiple Settings Groups Argus relays provide eight alternative settings groups making it possible to edit one group while the protection algorithms operate using another active group The Argus can then be switched from one group of settings to another to suit alterations in the power system configuration A change of group can be achieved either locally at the fascia remotely via a communications interface command or by energisation of a status input On models with a voltage element this can also be used to chang
38. ify the correct direction indication 2010 Siemens Protection Devices Limited P20006 Pot EM ENS siemens russia com 7SG11 Argus User Manual Figure 4 1 Apply residual voltage either directly to input or by reducing voltage of faulted phase Adjust the phase angle of the residual current relative to the voltage Verify directional pick up and drop off at points A B Cand D Alternatively Verify correct directional indication at points a b c and d C A 80 100 80 100 Directional Earth Fault Boundary System Angles With balanced 3 phase system quantities Adjust the phase angle of the currents relative to the voltages Verify directional pick up and drop off at points A B C and D Alternatively Verify correct directional indication at points a b c and d C A 809 1009 80 100 Figure 4 2 Directional Phase Fault Boundary System Angles Table 4 3 Limits of Operate Pick up Relay Angle Boundaries Operate PU Operate PU Pole CA Direction limits I wrt V Pole CA Direction limits I wrt V A B C forward lag 37 5 47 5 E F forward lag 127 5 137 5 45 forward lead 127 5 137 5 45 forward lead 37 5 47 5 reverse lead 42 5 52 5 reverse lead 132 5 142 5 reverse lag 132 5 142 5 reverse lag 42 5 52 5 30 forward lag 52 5 62 5 65 forward lag 147 5 157 5 forward lead 112 5 122 5 forward lead 17 5 27 5
39. imited P20006 Pad EM ENS siemens russia corm 7SG11 Argus User Manual phase shifting 240V FTN transformer A B C EF a c supply T a A gcn 82 83 81 79 A Y YN Borer 83 81 82 80 time interval meter ots C START SYM phase o E F or SEF REF angle TAAA meter auxiliary d c supply O 4 p O Z a 53 49 45 25 o STOP 54 50 146 26 Figure 4 3 Secondary Injection Test Circuit Figure 4 4 Directional Test Circuit f YYX 4 phase shifting transformer 240V a c LV YA supply E F or SEF REF O primary injection test source Figure 4 5 Two out of three Directional Figure 4 6 Phase to Earth Primary Injection Test Circuit Test Circuit A B C 333 E F or SEF REF 3 o primary injection test source Figure 4 7 Phase to Phase Primary Injection Test Circuit 2010 Siemens Protection Devices Limited P20006 Pace EM ENS siemens russia corm 7SG11 Argus User Manual End 1 Direction of load power flow M P A phase fuse removed A phase fuse removed dn oe 4123 LO ac C phase I P 3 pole directional phase fault and directional earth fault 53e 543 forward A phase I P l V ef reverse phase fau
40. ings While a setting or other editable value e g in Linesman mode is being displayed on the screen the ENTER key can be pressed to edit the setting value If the Argus is password protected the user will be asked to enter the password as described below If an incorrect password is entered editing will not be permitted While a setting is being edited flashing characters indicate the edit field Pressing the up and down keys will increment and decrement the value of the field within the valid limits of the setting If the up and down keys are held on the rate of scrolling will increase On a multi field setting e g text settings or CT ratios pressing the right key will move the edit point to the next field Once editing is complete pressing ENTER stores the new setting value into the non volatile memory The setting change is effective immediately unless any protection element is operating above setting in which case the change becomes effective when no elements are operating If during editing the CANCEL key is pressed the edit mode is exited the setting change is discarded and the original value is redisplayed 2010 Siemens Protection Devices Limited P20006 Pai EM ENS siemens russla com 7SG11 Argus User Manual jueunoJeAQ sn iy ainjonyg nuejw 60000 d S yned p yned yneJ z yned bynes Ce epo eyeq 1ney So 0 SANIUOP JOJ jueuinoop sJyejeurejeg pue sBumes eje
41. le of running Microsoft Windows 98 or greater and it must have a standard RS232 port a USB RS232 adaptor or a suitable PCMC1A RS232 adaptor can be used in order to drive the modem The Reydisp communications package can then be used to interrogate the relay using the IEC 60870 5 103 protocol For remote communications more specialised equipment is required see Section 4 Communications Interface in the Technical Reference section of this manual 2010 Siemens Protection Devices Limited P20006 Patol EM ENS siemens russla com 7SG11 Argus User Manual Section 4 Commissioning 4 1 Before Testing 4 1 1 Test Equipment 500V Insulation resistance test set 1 Secondary injection current source rated 10A or greater 2 Time interval meter 3 Primary injection equipment 4 A d c supply with nominal voltage within the working range of the Argus d c auxiliary supply rating 5 A d c supply with nominal voltage within the working range of the Argus d c status input rating Additionally for Argus 2 and 6 relays the following equipment is required Variable voltage source 6 Phase shifting transformer 7 Phase Sequence Indicator Alternatively items 1 2 4 5 6 and 7 can be replaced by a computer programmable V amp source universal test set Additional equipment for general tests and for testing the communications channel Portable PC with an RS232 to fibre optic converter and suitable interface cable or via RS485 input
42. lt element reverse forward V ol le earth fault element Earth fault I P 26 I po Vos T Von 3 pole directional phase fault and directional earth fault AL E Vos Vos forward phase fault element reverse 26 V Earth fault I P pol e 46 forward End 2 92 B phase l P Direction RTs ie E power flow ces A phase I P XXX i LAT Note that the terminal numbers in this diagram refer to an Argus AG2 4x5 4x6 The terminals x x x available on other models may be different however the principle remains the same LOAD Figure 4 8 Resultant Applied Voltages and Currents for a Simulated Earth Fault Condition using Load Current 2010 Siemens Protection Devices Limited P20006 Dh EM ENS siemens russia com 7SG11 Argus User Manual Section 5 Testing and Maintenance Argus relays are maintenance free with no user serviceable parts 5 1 Periodic Tests During the life of the Argus it should be checked for operation during the normal maintenance period for the site on which the product is installed It is recommended the following checks tests are carried out 1 Visual inspection of the metering display 2 Operation of output contacts 3 Secondary injection of each element 5 2 Maintenance Failure of the Argus will be indicated by the Protection Healthy LED being off or flashing A message may also be displayed on the LCD In the event of failure Si
43. mage It is recommended that the Argus relay not be removed from the case To prevent the possible ingress of dirt the sealed polythene bag should not be opened until the Argus is to be used If damage has been sustained a claim should immediately be made against the carrier also inform Siemens Protection Devices Limited When not required for immediate use the Argus should be returned to its original carton and stored in a clean dry place The Argus relay contains static sensitive devices These devices are susceptible to damage due to static discharge and for this reason it is essential that the correct handling procedure is followed The Argus relay s electronic circuits are protected from damage by static discharge when it is housed in its case When the relay has been withdrawn from the case static handling procedures should be observed as follows e Before removing the Argus from its case the operator must first physically touch the case to ensure that he she is at the same potential e The Argus relay must not be handled by any of the terminals on the rear of the chassis e Argus relays must be packed for transport in an anti static container e Ensure that anyone else handling the Argus is at the same potential As there are no user serviceable parts in the Argus relay then there should be no requirement to remove any modules from the chassis If any modules have been removed or tampered with then the guarantee will be invalidate
44. mited period Time and date can be set either via the fascia using appropriate commands in the System Configuration Menu or via the communications interface In the latter case Argus relays connected in a communications network can be synchronised by a global command Synchronising pulses can be received via a status input To use this feature one of the status inputs must be assigned to the Clock Sync feature in the Status Configuration Menu Additionally the Clock Sync Period setting in the System Configuration Menu should be set either to Seconds or to Minutes as appropriate depending on the period of the synchronising signals expected from the controlling device If Seconds are selected then energisation of the selected status input will result in the clock being synchronised to the nearest second with milliseconds set to zero If Minutes are selected then the clock is synchronised to the nearest minute with seconds and milliseconds set to zero 1 3 5 2 Fault Records The last 5 fault records are available from the Argus fascia with time and date of trip measured quantities and type of fault When issuing a trip output under fault conditions the Argus illuminates its TRIP LED stores a fault record and displays the fault indication screen The fault indication screen displays a summary of the fault record giving immediate simple information on what has occurred It displays date DD MM time HH MM SS and the poles which were pi
45. nation of output relays as tripping outputs The TRIP LED and the fault record storage will be triggered when any of the selected output relays are energised Note that a trip output can still be generated even if the fault trigger setting is not used but no trip indication is given Fault records are stored in non volatile memory 1 3 5 3 Disturbance Recorder The waveform record feature stores analogue and digital information for all current inputs status inputs and output relays On some relays voltage signals are also stored The Waveform Trigger setting is used to enable the waveform record feature Waveform storage is triggered by operation of any function selected in the waveform trigger setting In addition a record can be triggered remotely via a status input or via the serial communications interface Waveforms are stored in a 1 second rolling time window The 1 second data window has a settable pre fault triggering capability There is capacity to store five waveform records with any new record over writing the oldest All records are time and date stamped Waveform records are stored in RAM with a capacitor providing back up during breaks in auxiliary supply The waveform record store can be erased when viewing the waveforms instrument screen and pressing the TEST RESET button 1 3 5 4 Sequence of Event Records The Argus event recorder feature allows the time tagging of any change of state Each event is log
46. nd restricted earth fault protection schemes are achieved with identical internal functionality They incorporate filtering for rejection of second third and higher harmonics of the power system frequency Two DTL timers and a lowset characteristic are provided The lowset does not have an independent current setting in this case The delayed reset function operates on the two DTL timers 1 3 1 3 Directional Control Argus 2 and Argus 6 only Directional elements are available for phase fault and earth fault as an ordering option Bi directional elements provide independent characteristic current and time settings for each direction of each overcurrent stage In models with three phase fault directional elements single phase or two out of three directional decisions are available In most models the phase fault characteristic angles are selectable from 30 and 45 the earth fault characteristic angle is selectable from 0 15 45 and 65 In Argus 2 models with voltage and power measurement the phase fault and earth fault characteristic angles are selectable to any angle between 90 and 90 in 1 steps 2010 Siemens Protection Devices Limited P20006 Pl EM ENS siemens ruszia carm 7SG11 Argus User Manual 1 3 1 4 Voltage Protection Certain Argus 2 models only A three phase voltage element with definite time delay is provided which can be used to provide a trip or alarm output or can be set to block any of the
47. nimum of five output relays is provided Three of these have change over contacts the remainder have normally open contacts Each contact can be tested individually by the trip test feature which causes each output relay to be pulsed for the user programmable minimum dwell time or they can be checked during commissioning by testing the feature to which they are assigned Note A quick method of energising an output relay permanently so that wiring can be checked is to temporarily map the output relay being tested to the Protection Healthy signal as this is permanently energised the mapped relay will be held energised and normally open contacts will be closed Remember to deselect the output relays from the Protection Healthy signal following the test 4 2 7 Primary Injection Tests Primary injection tests are essential to check the ratio and polarity of the transformers as well as the secondary wiring 4 2 7 1 Primary Current Tests Use the circuit shown in Figure 4 6 to check the current transformer ratio and the C T connections for phase to earth fault current Inject a current of sufficient magnitude for the Argus relay ammeters to display These levels should be compared with the ammeters connected in series with the Argus The secondary current is Primary current CT ratio Use the circuit shown in Figure 4 7 to check the current transformer ratio and the C T connections for phase to phase fault Record the results in Table 4 1
48. nter Instruments marked are not available in all models consult ordering information and the appropriate Diagrams and Parameters document Note The rolling demand measurements can be configured to measure over a rolling window with the following ranges OFF 0 25 0 5 1 0 1 5 5 0 6 0 12 0 16 00 24 0 hours General Alarm Screens The Argus has an independent display function that provides up to five General Alarm screens each of which may be programmed by the user to display a message associated with an external alarm Within the System Configuration Menu each General Alarm message can be text edited by the user to display up to 13 characters Also each General Alarm can be user mapped to any status input via the Status Configuration Menu so that on energisation of that input the associated alarm message is automatically displayed Where more than one General Alarm is raised then the display will scroll right to left to show all energised screens sequentially with screens separated by a sign If required more than one alarm may be mapped to a single status input allowing long messages to be displayed Default Instrumentation Screens The menu presentation of the various instruments allows the user to view a single screen at a time However for in service use it is desirable that a small number of high interest user selectable screens are presented automatically by default without user intervention
49. on the display and which can be altered This allows the settings in one group to be altered while the protection continues to operate on a different unaffected group The Active Settings Group and the Edit View Group are selected in the System Configuration Menu Elsewhere in the settings menu system those settings that can be altered for different groups are indicated by the symbols G1 G2 etc in the top left of the display All other settings are common to all groups 4 2 Tests 4 2 1 Inspection Ensure that all connections are tight and correct to the wiring diagram and the scheme diagram Record any deviations Check that the Argus is correctly programmed and that it is fully inserted into the case Refer to Section 2 Operation Guide for information on programming the Argus 4 2 2 Insulation Tests Connect together all of the C T terminals and measure the insulation resistance between these terminals and all other terminals connected together and to earth Connect together the terminals of the DC auxiliary supply circuit and measure the insulation resistance between these terminals and all other terminals connected together and to earth Connect together the terminals of the DC status input circuits and measure the insulation resistance between these terminals and all other terminals connected together and to earth Connect together the terminals of the output relay circuits and measure the insulation resistance betwe
50. one of the current inputs Slowly increase the current until the I gt ls LED yellow operates and record the pick up current in Table 4 4 Reduce the current until the LED goes out and record this as the Drop off level Repeat this test for each pole Check that all measured Pick up current levels are within 105 4 of the applied setting Check that the Drop off levels are 29596 of the measured Pick up value 2010 Siemens Protection Devices Limited P20006 Pot d EM ENS siemens russia com 7SG11 Argus User Manual Note Depending upon the applied settings a TRIP could occur if the current is on for longer than the operating time This may be undesirable while measuring Pick up and Drop off levels The Fault Trigger setting in the data storage menu can be used to disable tripping indication temporarily during this test also the Low and High Set elements may need to be temporarily turned OFF in order to prevent unwanted instantaneous operations Timing This test checks the accuracy of the main time delay characteristic IDMTL DTL Select the current setting characteristic type and time multiplier setting as required Then inject current at multiples of the setting The correct output contact must be programmed for the phase fault and earth fault elements A time interval meter must be connected to the correct terminals The timer should be started by the source and stopped by the trip contacts Each pole should be tested
51. porated within the Argus range One type of input is used for phase fault and earth fault protection while the other is used for sensitive earth fault and restricted earth fault protection The current inputs can be configured for operation with either 1A or 5A transformers The appropriate connections are required on the terminal blocks and the CT rating must be set as required Voltage Inputs Argus 2 and Argus 6 only Voltage inputs are used for setting the direction of the overcurrent elements and up to 4 voltage inputs are provided In most models voltage inputs for the phase voltages must be connected phase phase while a separate open delta VT must provide the neutral voltage In some models however the option is given to connect 3 voltage inputs in a star configuration Each voltage input is capable of being connected to VTs with a nominal 63 5V or 110V secondary voltage 1 2 5 Status Inputs and Output Relays Four configurations of digital I O are available e 1 status input 7 output relays 3 changeover 4 normally open e 3 status inputs 5 output relays 3 changeover 2 normally open e 5 status inputs 11 output relays 3 changeover 8 normally open 2010 Siemens Protection Devices Limited P20006 ed EM ENS siemens russia com 7SG11 Argus User Manual e 9 status inputs 7 output relays 3 changeover 4 normally open Single pole Argus relays are only available with 1 status input and 7 output relays Status In
52. ptic ST BFOC 2 5 bayonet connectors 2 per Argus Glass fibre is recommended for all but the shortest distances When installing fibre ensure that the fibre s bend radii comply with the recommended minimum for the fibre used typically 50mm is acceptable for single fibres 2010 Siemens Protection Devices Limited P20006 Patel EM ENS siemens russla com 7SG11 Argus User Manual An option for RS485 electrical interface is available A maximum of 256 devices can be connected using 120 ohm screened twisted pair wire ie Belden 3105A or similar terminated with a suitable flat blade or pin connector The last device in the circuit must be terminated with the termination link as show in section P20008 Diagrams amp Parameters this connects the internal 120 ohm terminating resistor 3 5 Fixings 3 5 1 Crimps Davico ring tongue with 90 deg bend Table 3 1 Wire crimp sizes Wire Size Davico 0 25 to 1 6mm DVR1 4 90deg 10 to 2 6mm DVR2 4 90deg 3 5 2 Panel Fixing Screws Kit ZA0005 062 comprising of e Screw Pan Head M4x10mm Black ZB5364 101 2off e Nut M4 2103F11040 2off e Lock washer 2104F70040 2off Two kits are required for the R4 R6 and R8 case sizes 3 6 Ancillary Equipment The Argus can be interrogated locally or remotely by making connection to the fibre optic terminals on the rear of the case For local interrogation a portable PC with a fibre to RS232 modem is required The PC must be capab
53. puts Status inputs can be programmed to perform one or more of the following functions Switch to an alternative settings group Trigger the storage of a waveform record Trigger a textual fault record Trigger operation of the 1 summation and trip count features Inhibit operation of any one or more protection functions Monitor the health of the tripping circuit Synchronise the real time clock Reset of latched output contacts Reset of counter instruments Start an auto reclose sequence Register a general alarm Initiate an external circuit breaker fail condition Additionally each input can be independently programmed to operate with time delayed pick up and or time delayed drop off The status inputs have a default pick up delay setting of 20ms which provides security against operation in the presence of an a c input voltage If instantaneous operation is preferred then the pick up delay should be set to zero It is also possible to invert the operation of a status input If an input is configured to be inverted then any function assigned to that input becomes active upon de energisation of the input Output Relays Outputs are user programmable to operate from any or all of the protection characteristics In addition they can be programmed to generate outputs from the 1 summation alarm the trip counter alarm the status inputs and the self monitoring feature watchdog In their normal mode of operation output contacts remain energise
54. r Sensitive Earth Fault If the scheme requires the Argus to provide Auto Reclose initiated by a Status input then the SA Sequence should be checked The response to a Transient fault should be checked Record the results of the sequence test in Table 4 17 4 2 5 Status Inputs The operation of the status input s can be monitored on the Status Input display shown in Instruments Mode Inject the required supply voltage into each status input and check for correct operation Depending on the application each status input may be programmed to perform a specific function each status should be checked to prove that its mapping and functionality is as set Where the pick up and or drop off timers associated with a status input are set to user scheme required delays these delays should be checked either as part of the scheme logic or individually To check a status pick up time delay temporarily map the status to an output relay that has a normally open contact Use an external timer and time the interval between status energisation and closure of the output contacts To measure the drop off delay map to an output relay that has a normally closed contact time the interval between status de energisation and closure of the output contacts Note The time measured will include an additional delay typically less than 20ms due to the response time of the status input and the operate time of the output relay 4 2 6 Output Relays A mi
55. reclose sequence that can be initiated by an internal or external signal For each type of protection trip phase fault earth fault SEF or external a separate sequence of instantaneous and delayed trips is available Programmable dead times and reclaim times with a wide setting range and integrated sequence co ordination enable virtually all distribution auto reclose schemes to be achieved 1 3 3 Plant Monitoring 1 3 3 1 Trip Circuit Supervision An Argus relay can monitor its associated trip circuit by configuring one of its status inputs using the Trip Circuit Fail setting and connecting the input into the trip circuit refer to the applications guide for details of how this is achieved Indication is then given instantaneously of Trip Circuit Failure should a fault be detected this display also identifies which input has detected the fault Since the status inputs can be programmed to operate output contacts an alarm output can also be generated from the trip circuit supervision feature 1 3 3 2 Circuit Breaker Maintenance The summation feature and the trip counter provide circuit breaker condition monitoring Alarm outputs with programmable settings are available for both features This information is accessed either from the front panel or via the communications interface The values of current used for the summation are those measured at the time of issuing a trip signal An 1 sum is generated for each phase element and the
56. red delays are within 5 of the set values 2010 Siemens Protection Devices Limited P20006 Poll EM ENS siemens russia com 7SG11 Argus User Manual 4 2 3 3 SEF REF Pick up and Drop off For Argus relays with the SEF REF element fitted then the current setting should be checked for this pole This can be achieved in the same manner as the IDMTL DTL Characteristic Pick up Drop off tests Record the results in Table 4 12 Confirm that the measured Pick up level is within 5 of the set value and that Drop off occurs at 295 of the measured Pick up value Timing The timers used in the SEF REF mode are operated sequentially Separate contacts must be configured for timer 1 and timer 2 in order that operation of each timer is checked Set the operating time on timer 1 to the required time and connect a time interval meter to the contact configured for timer 1 Inject a current at least three times the setting and record the time Set the operating time on timer 2 to the required time and connect a time interval meter to the contact configured for timer 2 Inject a current at least three times the setting and record the time The operating time is the addition of time 1 and time 2 Subtract time 1 from time 1 2 to get the operating time for timer 2 Note that the SEF REF pole has an additional available timer that is referred to as the lowset delay this should be tested if required by the application Record the results in Table
57. report a problem please return this completed form to Siemens Protection Devices Limited PO Box 8 Hebburn Tyne amp Wear NE31 1TZ England Telephone 44 0 191 401 7901 Fax 44 0 191 401 5575 2010 Siemens Protection Devices Limited P20006 Pati EM ENS siemens Trussia com
58. rimps and are secured using M4 screws 1 2 2 Front Cover After the Argus has been commissioned it is sealed by fixing a clear plastic cover over the front This allows the user to see the entire front of the relay but only allows access to the and buttons allowing all of the menus to be viewed but not changed The only action which is permitted is to reset the Fault Data Display latched output relays and the trip LED by using the TEST RESET function of the button 1 2 3 User Interface Fascia The user interface is designed to provide a user friendly method of entering settings and retrieving data from the Argus relay Relay Information The Reyrolle logo appears in the top left corner of the Argus At the top right an information label is provided which contains the range name Argus 1 Argus 2 Argus 4 or Argus 6 model number serial number and nominal ratings of energising quantities 2010 Siemens Protection Devices Limited P20006 zd EM ENS siemens russia com 7SG11 Argus User Manual Liquid Crystal Display A 2 line 16 character backlit liquid crystal display LCD is used to present settings instruments and fault data in a textual format The display backlighting is turned off to conserve power if no pushbuttons are pressed for 5 minutes After an hour the whole display is de activated except in the case of the instruments which remain visible permanently Protection Healthy LED This green LED indi
59. se current at characteristic angle is injected through all three poles in series This applies one pole FWD and the other two poles REV reverse the current direction to give two poles FWD and one pole REV Further tests may be required to check that the directional control settings have been correctly applied where these are complex Similarly if different threshold and delay settings have been applied for forward and reverse operation then these should be tested Such additional tests should be specified according to the particular requirements of the scheme 4 2 4 Auto Reclose Sequences These tests apply to Argus 4 and Argus 6 relays only The Auto Reclose sequences to be applied in service should be set up and proved for each of the fault types As detailed in section 4 1 1 it is suggested that a portable Personal Computer PC with Reydisp Evolution installed be connected to the Argus via an RS232 to Fibre Optic Modem and Fibre optic cables This will greatly facilitate the testing and documentation of the results of the various tests applied to the Scheme Reydisp Evolution can display the complete chronological event record generated by a full multi shot Auto Reclose sequence for post test analysis it is often difficult on site to keep track of protection and circuit breaker operations during a sequence test The analysis function provided on the event record display enables the user to make time difference comparisons betwe
60. setting Delay 1 Delay 2 2010 Siemens Protection Devices Limited P20006 Padi EM ENS siemens russia corm 7SG11 Argus User Manual 4 4 1 3 Directional Tests These tests apply to Argus 2 and Argus 6 relays only Table 4 16 Directional Boundaries of Operation Forward Reverse CA J Pole M T A Lag point C Lead point A Lag point B Lead point D Pick up Drop off Pick up Drop off Pick up Drop off Pick up Drop off A B C E F 4 4 2 Autoreclose Sequences These tests apply to Argus 4 and Argus 6 relays only Table 4 17 Auto reclose Sequences and settings Sequence setting Phase fault Earth fault SEF Status ARC IN OUT Line Check trip Protection Trip 1 Reclose delay 1 Protection Trip 2 Reclose delay 2 Protection Trip 3 Reclose delay 3 Protection Trip 4 Reclose delay 4 Protection Trip 5 Delayed Delayed Delayed Shots to Lockout Highset 1 Trips to Lockout Highset 2 Trips to Lockout Transient fault 2010 Siemens Protection Devices Limited P20006 Padi EM ENS siemens russia corm 7SG11 Argus User Manual 4 4 3 Primary Injection Tests Table 4 18 Primary Injection Results Phase Primary Secondary current injected current A B C E A B B C B E 2010 Siemens Protection Devices L
61. sissetesave sceansuneaavact ieassutetssesuessneideestguarta teeters BEES 29 Table4 10 Highset 1 timing results ci cit a e a ie it aaa Rude 29 Table 4 11 Highset 2 timing results iniinis irinna cesnaneesneveceendues eeetecneeseee 29 Table 4 12 Pick up Drop off Results for SEF REF sse nennen eene en nennen nennen 30 Table4 13 2SEF REF Timing ResUlts cetero then rte rhe Pasa tere paS nnna i ue rte ue D oca Lene E e Nae rindas 30 Table 4 14 Pick up Drop off Results for CBF Level Detector sssssseee emm een 30 Table 4 15 Circuit Breaker Fail Timing Results oooooonnnnnccnnnoccccnnonacnnnnoncccnnnonnnnnnnn cnn nan n nn nano nemen nennen nenne 30 Table 4 16 Directional Boundaries of Operation sssssssssssseeee enne eene nnne 31 Table 4 17 Auto reclose Sequences and settings ssssssssseeeeeenee nemen 31 Table 4 18 Primary Injection Results ooonocconnnnccnnnnocccnnoccccnononnnno nono cnn nnnrn cnn nn nene eene enhn enne en nennen nre 32 Table 5 1 Troubleshooting 1 o 35 2010 Siemens Protection Devices Limited P20006 Po d EM ENS siemens russia com 7SG11 Argus User Manual Section 1 Relay Description 1 1 Overview The Argus range of overcurrent protection combines the power and flexibility of microprocessor technology with decades of experience in the field of overcurrent protection and auto reclose A wide range of protection elements are supplemented by ad
62. t the measured delays are within 5 of the set values 4 2 3 5 Directional Tests This applies to Argus 2 and Argus 6 relays only The following tests deal specifically with directional functionality Note that there are a number of variants of directional Argus relays with various combinations of directional and non directional poles These tests should only be applied to those poles that are directionalised Note also that the directional response for each characteristic eg IDMTL highset etc is programmable and may be selected as either Non directional Forward Reverse or TRI state depending on the requirements of the scheme For the following tests the Directional Control settings should be set to the required settings Directional Polarity Check This test checks for correct polarity of the directional circuits In the Instruments menu display indication is provided on the output states of the directional elements i e whether they see forward current reverse current or neither for each pole This display is an aid to commissioning testing If the Argus is allowed to trip during testing then this display will be interrupted and replaced by the fault data display screen If this normal operation interferes with testing then temporarily change the Fault Trigger setting so that no fault indication will be given if the Argus trips 2010 Siemens Protection Devices Limited P20006 Pal EM ENS siemens russia com 7SG11 Argus User Manu
63. t the phase sequence of the voltages at the Argus are correct i e A B C and see by inspection that the phasing of the connections to the Argus is correct If system has reverse Phase rotation i e A C B this will affect the Phase Fault directional elements only For correct phasing of Type 1 Directional Relays i e AG2 XXX series reverse V i e connect voltage V to terminal 83 and V to terminal 82 For correct phasing of Type 2 Directional Relays i e AG 5XX series connect as shown in figures 4 10 11 12 13 for normal A B C rotation no wiring changes are necessary as the required adjustment is performed internally by the Relay in response to the Phase rotation setting change given below change the rotation setting in SystemConfig Phase Rotation from A B C to A C B Setting to A C B automatically changes Forward to Reverse and visa versa Earth Fault connections remain unchanged i e connections as shown Check the magnitudes of the voltage transformer voltages Pass a three phase load current of 20 or more of the current transformer rating in a known direction From the Instruments Display Mode check that the Argus correctly indicates either FORWARD or REVERSE in line with the direction of flow of the primary current If the flow of current is such that the Argus should operate see that in fact it does operate Note that it may be necessary to reduce the current setting to a level below the availabl
64. ting and SEF Rating settings in the System Config menu of the relay 4 1 3 Applying Settings The settings for the particular application should be applied before any secondary testing occurs If they are not available then the Argus has default settings that can be used for pre commissioning tests Refer to the appropriate Diagrams and Parameters document for the default settings Note that the tripping and alarm contacts must be programmed correctly before any scheme tests are carried out Argus relays feature eight alternative settings groups In applications where more than one settings group is to be used then it may be necessary to test the Argus in more than one configuration Note One group may be used as a Test group to hold test only settings that can be used for regular maintenance testing eliminating the need for the Test Engineer to interfere with the actual in service settings in the normally active group This Test group may also be used for functional testing where it is necessary to disable or change settings to facilitate testing 2010 Siemens Protection Devices Limited P20006 Pacey eh EM ENS siemens russia com 7SG11 Argus User Manual When using settings groups it is important to remember that the Argus need not necessarily be operating according to the settings that are currently being displayed There is an Active Settings Group on which the Argus operates and an Edit View Group which is visible
65. udoudde oj Jajay juo sj pow pajoajes ui Jeedde pexeui sjueunijsu z jueuunoop siajoweleg pue sujeJBeiq ayelidoudde ay 0 Jajas Jepoui uoee ui sjueuinujsui pue sBummes jo S SI NPUY P JOY XXX ww uu AAjuupp uL t du Jejeui Juno 18594 e 3nejep ei660 ED sbuljjes eoueuejuieu go MAIN O nueu eoueuejure g gO 381 s6umos abe o s jnej pue Juana uuojaAeM MIA O amp nueul abesojs geq JEPOW jeu JO sbuljies MIA O Nua wwo 01 9 04809 23l discal al TON CS 2 seii MAJA 0 amp Nua ui juno2 UOC JeModg Mis SS snmels gd Siiqiuu DIV s6urddew MBIA O nueu SUEY 8 SNIEIS JYV 6yuop Kelos d O suueje ejausg sioyels eui pue ejeq S U9 3 JO UINN SIME P uns Ajuo sjepoui Jajuno9 do boi 9 pue y sn amp iy siajunog du r Jejunoo duy eyeg UOnIpUO 3in2JI du Y sjndu snes snje s Aejoy snjejs EUOI 99JI y AVA M puewep xe nep JHIVA x Aejas jndjno T 2 sues esojoe ojne 1 MIA 0 amp nueul soj y ony sDuljjes M N O amp nueu Juawaja eDejjoA Ajuo sjapow z eDeyoA snbiy ulead SDuljjes M IA 0 nueu A9Y PM4 JUM sjuawaja LO J MOd anyoeal pue jeay juo sjepoui JeuojoaJip Jeuonoeiq 10 08 9 pue z snbiy r damod 9 1 mod juaueddy seDejjoA eseud eseu
66. using Yes No confirmation When the confirmation screen appears the edit field will be flashing N for No Use the up 4 or down v key to change the field to Y for Yes and then press ENTER to confirm the change Pressing CANCEL or pressing ENTER without changing the field to Y will abort the change 2 1 2 Instruments While an instrument is being displayed it will be updated regularly 2 1 2 1 Default Instruments When an instrument is being displayed pressing ENTER toggles its default instrument status on and off A default instrument is one that is displayed automatically by the Argus after no keys have been pressed for a period A number of default instruments can be set in which case they will be cycled in turn for 5 seconds each The period before the default instruments are displayed is controlled by the Default Screen Time setting in the System Config menu If an instrument is set as a default instrument this is indicated by a L1 in the top right corner of the display While a default instrument is being displayed pressing any key except TEST RESET will revert the display to that being displayed before the default instrument was activated 2 1 2 2 Resetting Counts Some instruments show count or summation values e g Trip Count Sum of I These can be reset using settings within the relevant sub menus Pressing the TEST RESET key while the appropriate instrument is displayed will also r
67. vanced features such as control metering data storage and fibre optic based communications Features IDMTL phase overcurrent stage 50 51 3 DTL phase overcurrent stages 50 IDMTL earth fault stage 50N 51N 3 DTL earth fault stages 50N 2 instantaneous and DTL SEF REF stages with harmonic rejection 50N Trip circuit supervision 74TC Circuit breaker failure protection 5OBF Single pole three pole and four pole variants True RMS measurement Status inputs with independent pick up and drop off timers and logic inversion to reduce scheme engineering Flexible supply voltage ranges Low AC DC burden Eight independent settings groups Self hand and electrical reset contacts Extensive fault sequence of event and disturbance recorder 1EC60870 5 103 fibre optic communications Modbus RTU communications Continuous self supervision of operation and power supply 1 2 Hardware 1 2 1 Case The Argus relay is housed in a drawout case designed for either panel mounting or modular 19 racking systems The case is 4U 177 mm high and will be of size 4 size 6 or size 8 width The chassis of the Argus can be withdrawn from the case by pulling on the handles provided Shorting contacts ensure that CT circuits and normally closed contacts remain short circuited All output contacts will be disconnected before any input contacts in order to prevent maloperation The rear terminals are designed to take two wires terminated using ring c
68. ver that some sub menus and screens are relevant to certain models only and will not always appear This is indicated in the diagram The exact list of settings and instruments available in each model is given in the appropriate Diagrams and Parameters document The five keys have the following functions Up 4 down and right gt keys used to navigate the menu system ENTER key when a setting is being displayed this key will enter edit mode for the setting see section 2 1 1 When in edit mode pressing ENTER will accept the setting change When an instrument is being displayed pressing ENTER will toggle the instruments default screen status on and off see section 2 1 2 1 CANCEL key when a setting is being edited this key will cancel the edit without changing the setting At all other positions CANCEL will move back up the menu system in the direction of the main menu TEST RESET key when the main menu is visible TEST RESET will briefly light all LEDs in order to test their operation After a trip occurs and the summary fault record is being displayed TEST RESET will reset the trip LED and any hand reset contacts before displaying the scrolling fault display When an instrument which records a count is being displayed e g number of CB operations pressing TEST RESET will allow the count to be reset see section 2 1 2 2 At all other times the right function of this key is available for menu navigation 2 1 1 Sett

Download Pdf Manuals

Related Search

Related Contents

Manual Máquina Torno  XC_Operatingmanual_heater_en  TLA7000 Series Logic Analyzers Installation Manual  Design and implementation of a second prototype of the intelligent  BA EC 70 US  AEG B4101-4 Oven User Manual  

Copyright © All rights reserved. Failed to retrieve file