TM1700-series Circuit Breaker Analyzer System
Contents
1. Megger Testing with DualGround Electricity deregulation changes the business environment for utili ties switchgear owners and service companies Deregulation has been shown to lead directly to increased emphasis on efficiency of operations maintenance and service levels Internationalization of business brings new challenges substantial investments by global corporations will bring with them sharper or new requirements for increased emphasis on health safety and environmental compliance Experience has also shown demands for shorter time periods for testing while the switchgear is less and less available to be taken out of service The safety aspect Network operators and service companies need to maintain and develop their industry safety record Eminent International bodies including the IEEE and IEC National Safety agencies and Trade Unions increases the demands on safety During the deregulation applicable safety regulations have been clarified and the applica tion of existing rules has tightened Keeping a good safety record is becoming a crucial asset in attracting investors and customers In all substations the capacitive coupling from live high voltage conductors induce harmful lethal currents in all parallel conductors Grounding both sides of the test object will lead the induced current to earth and provide a safe area for the test personnel See figures below Both sides grounded The best way to provide sa2. Current Main contact opens Resistance curve Scale 2 0 ms divs TM1700 series Circuit Breaker Analyzer System contact length can be reliably estimated The only real alternative in finding the length of the arcing contact is dismantling the circuit breaker A reliable DRM interpretation requires high test current and a circuit breaker analyzer with good measurement resolution Vibration analysis Vibration analysis is a noninvasive method using an acceleration sensor without moving parts The breaker can stay in service during the test An Open Close operation is all that is required for the measurement The first operation can be different compared to the second and third because of corrosion and other metal to metal contact issues Vibration is an excellent method to capture the first operation after long time in the same position The analysis compares the vibration time series with earlier taken reference The vibration method detects faults that can hardly be indicated with conventional methods But if conventional data such as contact time travel curve coil current and voltage are available in addition to the vibration data even more precise condition assess ment is possible The vibration data is stored together with available conventional data The Vibration method is published in CIGR and IEEE papers Since about 15 years is it utilized in the industry for testing all kind of breakers from 400 kV distribution to
3. Optional a Control 6 ch Auxiliary 6 ch s Analog 3 ch DCM 6 ch Auxiliary 6 ch Timing M R 6 ch Digital 6 ch Analog 3 12 Megger TM1700 series Circuit Breaker Analyzer System Ordering information Item Art No TM1710 BL 49090 With Analog option incl analog cables BL 49092 TM1720 BL 49094 With Analog option incl analog cables BL 49096 TM1750 BL 59090 With Analog option incl analog cables BL 59092 TM1760 BL 59094 With Analog option incl analog cables BL 59096 Included accessories Soft case Test cables and clamps Protective earth ground cable Mains cable Bag for cables USB memory stick Ethernet cable CABA Win User s manual Optional accessories DCM 3 channels Dual Ground Timing BL 59190 DCM 6 channels Dual Ground Timing BL 59192 Keyboard HC 01090 Flight Case TM1700 series GD 00025 NEW Accessories Digital Linear Transducer TP1 300 XB 39140 TP1 500 XB 39150 Circuit breaker transducer kits AHMA 4 8 ABB XB 61030 HMB 4 8 ABB XB 61040 First trip kits For single operating mechanism BL 90700 For three operating mechanisms BL 90710 See Optional accessories pages for more information SWEDEN UK Other Technical Sales Offices Registered to ISO 9001 and 14001 Megger Sweden AB Archcliffe Road Dover Dallas USA Norristown USA Subject to change without notice Eldarv gen 4 Box 2970 CT17 9EN England Toronto CANADA Trappes FRANCE Art No ZI BL14E Doc BL1589AE 2012 SE 187
4. flowing through each phase and by looking for the instant when the current stops flowing the breakers trip time is revealed Disconnectors Secondary Circuit Breaker CT Wiring Figure 2 Point for measuring the line currents Figure 3 Control cabinet with current clamps Equipment The equipment needed for a first trip measurement depends on the configuration of the circuit breaker A common denominator for all measurements is that three current clamps for the line current are needed to get the timing of the individual phases These don t need to have the capability of measuring DC currents since they will only measure the alternating line currents For the coil current either one Megger or three clamps are needed depending on the number of operating mechanisms These need to be able to measure both AC and DC to cover all types of coils however DC coils being the most common Analysis LC 1 Adiv B 1 Aidiv LA 1 Adiv L CIRI 5 Adiw W TCMD1 10 Vidiv i i 0 0 5 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 55 0 70 0 75 0 Figure 4 Example of measurement result In figure 4 we see an example of a measurement that covers the three phases one coil current and the control voltage Timing measurements Simultaneous measurements within a single phase are important in situations where a number of contacts are connected in series Here the breaker
5. mechanisms used to open and close a circuit breaker If the damping device does not function satisfactorily the powerful mechanical strains that develop can shorten breaker service life and or cause serious damage The damping of opening operations is usually mea sured as a second speed but it can also be based on the time that elapses between two points just above the breaker s open position Coil currents These can be measured on a routine basis to detect potential me chanical and or electrical problems in actuating coils well in advance of their emergence as actual faults The coil s maximum current if Print Preview Graph Layout Display Settings 30 0 35 0 40 0 46 0 50 0 N Proportional to DC coil resistance Auxiliary contact opens Current decay Scale 5 0 ms divs EN 1 Trip coil energized 2 5 Armature travel 3 4 Armature operates trip latch 4 5 Armature completes its travel Armature hits stop Example of coil current on circuit breaker Megger current is permitted to reach its highest value is a direct function of the coil s resistance and actuating voltage This test indicates whether or not a winding has been short circuited When you apply a voltage across a coil the current curve first shows a straight transition whose rate of rise depends on the coil s electri cal characteristic and the supply voltage points 1 2 When the coil armature which actuates the latch on the operating
6. 29 TABY T 44 0 1304 502101 Oberursel GERMANY Johannesburg TM1700 series DS en VO1 T 468 510 195 00 F 44 0 1304 207342 SOUTH AFRICA Kingdom of BAHRAIN www megger com F 46 8510 195 95 Mumbai INDIA Chonburi THAILAND Megger is a registered trademark E seinfo megger com Sydney AUSTRALIA
7. becomes a voltage divider when it opens a circuit If the time differences are too great the voltage becomes too high across one contact and the tolerance for most types of breakers is less than 2 ms The time tolerance for simultaneous measurements between phases Is greater for a 3 phase power transmission system running at 50 Hz since there is always 3 33 ms between zero crossovers Still the time tolerance is usually specified as less than 2 ms even for such systems It should also be noted that breakers that perform synchro nized breaking must meet more stringent requirements in both of the previously stated situations There are no generalized time limits for the time relationships between main and auxiliary contacts but it is still important to understand and check their operation The purpose of an auxiliary contact is to close and open a circuit Such a circuit might enable a closing coil when a breaker is about to perform a closing operation and then open the circuit immediately after the operation starts thereby preventing coil burnout The a contact must close well in advance of the closing of the main contact The b contact must open when the operating Closed Contact closure Arcing zone c o 5 un O a e Speed calculation points Damping zone Motion diagram and timing graphs for a close open operation TM1700 series Circuit Breaker Analyzer System mechanism has released its stored energy
8. 300 mm 11 8 for position marker XB 39193 The above transducers are also available in other lengths please contact Megger for information Megger Item Description Rotary Analog Novotechnic Incl cable 1 m 3 3 ft 6 mm Flex IP6501 coupling Hexagon wrench Flex coupling For IP6501 shaft diam 6 mm Rotary Digital BDH16 05A3600 LO B Incl cable 10 m 33 ft 10 6 mm Flex coupling Hexagon wrench Baumer Transducer mounting kits Universal kits Rotary trans For transducers XB 31010 and ducer mount XB 39130 ing kit Universal For linear and rotary transducers transducer mounting kit Circuit breaker specific kits LTB Kit ABB Incl mounting kit XB 51010 Soft ware conversion table BL 8730X HPL BLG Kit Incl mounting kit XB 51010 Soft ABB ware conversion table BL 8720X AHMA 4 8 Incl 3 transducers ABB HMB 4 8 ABB Incl 3 transducers Ready to use kits Rotary Analog 1 phase kit Incl transducer XB 31010 mount ing kit XB 51010 3 phase kit Incl 3 x 1 pase kits XB 71010 Ready to use kits Rotary Digital 1 phase kit Incl transducer XB 39130 mount ing kit XB 51010 3 phase kit Incl 3 x 1 pase kits XB 71020 Transducer mounting accessories Universal sup port Switch mag netic base Thread Metric to Imperial TLH TP1 adapter kit Cables TM1800 DCM 3 DCM cables 12 m 39 ft 6 3 channelad Clamps dition TM1800DCM 3 DCM extension cables 10 m 33 3 channel e
9. C 50 60 Hz 200 VA max 515x173x452 mm 20 3 x6 8 x 17 8 12 kg 26 5 lbs 0 250 V AC DC User configurable in software in steps of 1 V 30 V DC 15 10 40 mA 1 2k0Q0 12 V 1096 short circut protection 1 7 A DRM only for SDRM202 and DRM1800 Voltage mode Output Voltage 12 V DC 10 Short circuit protection PTC 750 mA Switching current 750 mA resistive load Communication interfaces USB Ethernet Universal Serial Bus ver 2 0 100 base Tx Fast Ethernet HMI Human Machine interface CABA Local Available languages Display Diagonal size Keyboard Circuit breaker analyzing software English French German Spanish Swed ish Translation kit available High brightness SVGA 800x600 Touch screen 21 cm 8 On screen Control section 1 or 2 General No of channels Time base inaccuracy Max sample rate Measurement time 3 0 01 of reading 1 sample interval 40 kHz 200 s at 10 kHz sample rate Non bouncing switch Max current Duration Delay 80 A AC DC pulse x 100 ms User configurable in steps of 1 ms User configurable in steps of 1 ms TM1700 series Circuit Breaker Analyzer System Current measurement Measurement range 0 to x80 A AC DC Resolution 16 bits Inaccuracy 2 of reading 0 196 of range External current measurement CT Max input 1 V Scaling 100A 1V Range 80 AV 0 8V Voltage measurement Measurement range 0 250 V AC DC Resolution 12
10. Megger TM1700 series TM1700 series Circuit Breaker Analyzer System Circuit Breaker Analyzer System Description The TM1700 series circuit breaker analyzers utilizes some of the ground breaking technology from the top of the line version TM1800 There are four models starting from PC remote controlled to fully stand alone All models can be controlled from a computer using the well proven data management and analyzing software CABA Win The robust design offers powerful technology that assists the user to achieve efficient and reliable circuit breaker testing All inputs and outputs on the instrument are designed to withstand the challeng ing environment in high voltage substations and industrial environ ments Galvanically isolated inputs and outputs makes it possible to perform all relevant measurements in one test eliminating the need for new setup and re connections The patented DualGround method makes the testing safe and time saving by keeping the circuit breaker grounded on both sides throughout the test The timing measurement inputs are using a patented Active Interfer ence Suppression algorithm to ensure correct timing and accurate PIR Pre Insertion Resistor values even at high capacitively coupled interference currents The adaptive and easy to use software supports the user to perform the test by simply turning the test switch without the need for settings The operator is only one click away from advanced
11. ation motor currents and motion The coil currents are measured to give indication of any lubrication problems inside the main bearings or in the trip latch By analyzing the coil currents indication of changes in resistance can also be detected caused by short circuited windings burnt coils etc The coil currents can be measured with either current clamps or with the analyzers control module if the utility allows a local breaker operation The control voltage is measured during the operation to give an indication of a weak battery bank The station s battery voltage before an operation might be in order and is monitored by charging units However during the operation the power demand might be too great for the bank f the voltage drop is greater than 10 of the nominal voltage it might be a sign of a failing battery bank f the circuit breaker has three operating mechanisms the coil currents and control voltages shall be measured in each mechanism TM1700 series Circuit Breaker Analyzer System Trip Coil Close Coil V Figure 1 Point for measuring coil current and control voltage Since the breaker is in service the conventional way of measuring the times of the main contacts with timing leads across the inter rupter cannot be used Instead of timing leads three current clamps are used These current clamps are used on the secondary side of the current transformer for each phase These show the current
12. cable GA 00140 BL 90600 Current sensor kit 3 channels Fluke 80i 110s incl cables GA 00140 BL 90610 GD 00025 Velcro straps 10 pcs AA 00100 For more information about optional accessories please contact Megger Sweden AB egger Circuit Breaker Analyzer System Ss baa mp Rotary transducer Baumer BDH digital Vibration kit BL 13090 Includes SCA606 CABA Win Vibration software and one Vibration channel Switch magnetic base Linear transducer TLH 225 p Universal support Linear transducer TP1 300 digital 10 Megger TM1700 series Circuit Breaker Analyzer System Cable reels 20 m 65 5 ft 4 mm stack able safety plugs Rotary transducer mounting kit XB 51010 SDRM202 li SDRM Cable Cable XLR GA 00760 Extension cable XLR GA 01005 11 Megger TM1700 series Circuit Breaker Analyzer System TM1700 Models TM1710 Including Optional a Control 3 ch Auxiliary 3 ch s Analog 3 ch DCM 6 ch Timing M R 6 ch Digital 6 ch a CABA Win TM1720 Including Optional a Control 6 ch Auxiliary 6 ch s Analog 3 ch DCM 6 ch Auxiliary 6 ch Timing M R 6 ch Digital 6 ch CABA Win TM 1750 Including Optional a Control 6 ch Auxiliary 6 ch s Analog 3 ch DCM 6 ch m Auxiliary 6 ch m Timing M R 6 ch Digital 6 ch TM1760 SSE Eee h M ewe e es i elel fill E M AME m i id n T Including
13. creen High brightness for good visibility in direct sunlight Brightness setting POSITION Indicates the position of the circuit breaker main contacts if the coil circuit is connected to the control section SEQUENCE Indicates the next operation of the circuit breaker If Auto de tect breaker state is enabled in CABA Local or CABA Win only possible sequences for the circuit breaker are selectable OPERATE MEASURE Initiates the selected operation sequence and makes the mea surement Green READY LED must be lit before turning the rotary switch The yellow OPERATING LED is lit as long as the sequence is performed On Off switch 23 Megger Application examples First trip measurement When a fault occurs on a transmission or distribution line it is the circuit breakers job to fast and efficiently clear the fault by opening the circuit or to trip and isolating the fault from the power source A quick trip limits the damage caused by the high fault currents that can damage expensive equipment or in worst case kill someone This is why it is so important to test the circuit breakers so you know they are functioning properly Why capture first trip Testing breakers can be done in many ways but one of the most common is timing of the main contacts which gives a direct indica tion of the trip time The typical procedure of performing a timing test on circuit breaker that is in service is Open the breake
14. ed up to 6 channels BL 13090 Additional vibration channel to be used together with the Vibra tion kit Each Vibration channel includes accelerometer acceler ometer adapter cables to SCA606 and cables to TM1700 series Synchronized Switching Relay test kit Vibration channel XB 32010 SSR kit Incl accessories software and cables delivered in transport case CG 91200 1 st trip kits For single operating mechanism BL 90700 For three operating mechanisms BL 90710 Static and Dynamic Resistance Measurement SDRM202 The SDRM202 uses new technol ogy patent pending with ultra capacitors The current output is up to 220 A from a box that weighs only 1 8 kg 4 lbs The weight of the current cables is also low be cause the SDRM202 is placed very close to the circuit breaker Timing M R measurement can be done with the same hook up CG 90200 SDRM202 Pack Pack for CB with 2 Breaks Phase of 3 units CG 90230 Extension ca 7 5 m 24 ft GA 12815 ble SDRM202 15 m 33 ft GA 12810 Transducers Linear Analog TLH 500 500 mm 20 travel Incl cable 0 5 m 20 XB 30020 LWG 225 225 mm 9 travel Incl cable 0 5m 20 XB 30117 TS 150 150 mm 5 9 travel Incl cable 1 0 m 3 3 ft XB 30030 TS 25 25 mm 1 travel Incl cable 1 0m 3 3 ft XB 30033 Linear Digital TP1 300 300 mm 11 8 travel Incl cable 10 m 33 ft XB 39140 TP1 500 500 mm 17 7 travel Incl cable 10m 33f 0 A XB391550 Link
15. fety in circuit breaker testing is to keep both sides of the circuit breaker grounded throughout the test This will also make the test faster and easier Minimum time shall be spent in the substation and focus shall be on the test rather than the equipment The DualGround testing method is available for all tests on all circuit breakers Both sides grounded High voltage Up to several kV if not earthed grounded Induced Induced current current Grounding Station earth ground Testing is much safer using the DCM module and DualGround TM1700 series Circuit Breaker Analyzer System Conventional vs DualGround Risky step left out ud Risky step left out dll MJOLNER SDRM202 TM1700 with DCM TM1700 TM1700 with SDRM202 CABA Win Vibration SCA606 Contact resistance Timing Motion SDRM DualGround Testing Vibration Equipment and methods that support DualGround testing are associated with the DualGround symbol This symbol certifies the use of ground breaking technology and methods that enable a safe fast and easy workflow with both sides grounded through out the test One side grounded High voltage Up to several kV if not earthed grounded l Induced current equipment Station earth ground With only one side grounded the induced current can reach values high enough to be harmful or lethal for humans Megger Features and benefit
16. help functions such as connection diagrams The 8 color touch screen with on screen keyboard allows the user to efficiently operate this high level user interface Provides reliable and accurate test results in noisy high voltage substations s Four standard models Full stand alone functionality or data acquisition models Without user interface Safer and faster with DualGround testing both sides of breaker grounded On screen assistance with connection diagrams and test template Wizard All models can be controlled via computer Select Connect Inspect Working with TM1700 Ja Breaker template s means fast and easy Generic templates testing Testing is 1 break per phase done with a three step i Common drive pus gt No resistor contac 3 Angle conversi 1 Motion 3 Timing 3 Resistor contact Separate drives 2 breaks per phase 3 breaks per phase 4 breaks per phase Select First step is to select a suitable template from the template library depending on number of contacts per phase motion or not resistor contacts and more Connect Second step is to con nect the test leads ac cording to the graphical help screen Separate help screen per cable zo T o R e aqmrmn Inspect Third step is to turn the Measure knob The measurement is performed analyzed and the results will be displayed on the screen Magnification and compare functions are available
17. in order to close the breaker The breaker manufacturer will be able to provide detailed information about this cycle Motion measurements A high voltage breaker is designed to interrupt a specific short circuit current and this requires operation at a given speed in order to build up an adequate cooling stream of air oil or gas depending on the type of breaker This stream cools the electric arc sufficiently to interrupt the current at the next zero crossover It is important to interrupt the current in such a way that the arc will not re strike before the breaker contact has entered the so called damping zone Speed is calculated between two points on the motion curve The upper point is defined as a distance in length degrees or percent age of movement from a the breaker s closed position or b the contact closure or contact separation point The lower point is determined based on the upper point It can either be a distance below the upper point or a time before the upper point The time that elapses between these two points ranges from 10 to 20 ms which corresponds to 1 2 zero crossovers The distance throughout which the breaker s electric arc must be ex tinguished is usually called the arcing zone From the motion curve a velocity or acceleration curve can be calculated in order to reveal even marginal changes that may have taken place in the breaker mechanics Damping is an important parameter for the high energy operating
18. industrial sites The method was first established on the Scandinavian market Vibration can be performed under very safe manners for the test technician as both sides can be grounded throughout the test Also less climbing is required since no access to the breaker contact system is needed the acceleration sensor is easily mounted on the breaker Y off amp et 3 divs Arcing contact opens current drops and resistance infinite DRM is a reliable method to estimate the length wear of the arcing contact The SDRM202 provides high current and the TM 1700 gives an accurate measurement with very good resolution Besides it is possible to use DualGround testing Megger Specifications TM1700 series General Specifications are valid after 30 minutes warm up time System time base drift 0 001 per year Specifications are subject to change without notice Environment Application field Temperature Operating Storage amp transport Humidity CE marking EMC LVD General Mains input nominal Power consumption Dimensions Weight External input TRIG IN Voltage mode Input range Threshold level Contact mode Open circuit voltage Short circuit current Threshold level External outputs DC OUT General voltage source For use in high voltage substations and industrial environments 20 C to 50 C 4 F to 122 F 40 C to 70 C 40 F to 158 F 5 9596 RH non condensing 2004 108 EC 2006 95 EC 100 240 V A
19. mV Inaccuracy 1 of reading 0 1 of range Timing M R section 1 General No of channels 6 0 01 of reading 1 sample interval 0 05 ms Time base inaccuracy Min resolution Max sample rate 40 kHz Measurement time 200 s at 20 kHz sample rate Timing of main and resistive contacts Open circuit voltage 6 V or 26 V 1096 Toggling at every second sample Short cicuit current 9 7 mA or 42 mA x1096 Status threshold Main Closed lt 10 Q lt Open Main and Resistor Main lt 10 Q PIR lt 10 kQ lt Open PIR resistance measurement Supported PIR types Linear PIR Measurement range 300 10 kO Inaccuracy 10 of reading 0 1 of range Voltage measurement Measurement ranges 50 Vpeak 15 Vpeak x 0 5 Vpeak Resolution 16 bits Inaccuracy 1 of reading 0 1 of range Analog section none 1 or 2 General No of channels 3 isolated channels 0 01 of reading 1 sample interval 40 kHz 200 s at 10 kHz sample rate Time base inaccuracy Max sample rate Measurement time Transducer resistance 500 Q 10 kQ at 10 V output Output Voltage output 10 V DC 45 24 V DC 5 Max output current 30 mA Current measurement Measurement range 22 mA Resolution 16 bits Inaccuracy 1 of reading 0 1 of range Voltage measurement Input voltage range 0 250 V AC DC Measurement ranges 10 V DC 0 250 V AC DC Resolution 16 bits Inaccuracy 250 V range 1 of reading 0 1 of range 10 V range 0 1 of reading 0 01
20. mechanism s energy package starts to move the electrical relationship changes and the coil current drops points 3 5 When the armature hits its mechanical end position the coil current rises to the current pro portional to the coil voltage points 5 7 The auxiliary contact then opens the circuit and the coil current drops to zero with a current decay caused by the inductance in the circuit points 7 8 The peak value of the first lower current peak is related to the fully saturated coil current max current and this relationship gives an indication of the spread to the lowest tripping voltage If the coil was to reach its maximum current before the armature and latch start to move the breaker would not be tripped It is important to note however that the relationship between the two current peaks varies particularly with temperature This also applies to the lowest tripping voltage Dynamic resistance measurement DRM A circuit breaker will have arcing contact wear by normal operation as well as when breaking short circuit currents If the arcing contact is too short or otherwise in bad condition then the breaker soon becomes unreliable Main contact surfaces can be deteriorated by arcing resulting in increased resistance excessive heating and in worst case explosion The main contact resistance is measured dynamically over an open or close operation in DRM With DRM measurement the arcing Movement starts Motion curve
21. of range Megger Digital section General No of channels Supported types Time base inaccuracy Max sample rate Measurement time Output Voltage Max output current Digital input Range Resolution Inaccuracy Timing Aux section General No of channels Time base inaccuracy Max sample rate Measurement time Voltage Mode Input voltage range Status threshold Inaccuracy Contact mode Open circuit voltage Short circuit current Status threshold 6 Incremental transducers RS422 0 01 of reading 1 sample interval 40 kHz 200 s at 10 kHz sample rate 5 V DC 5 or 12 V DC 5 200 mA 32000 pulses 1 pulse 1 pulse 6 isolated channels 0 01 of reading 1 sample interval 40 kHz 200 s at 10 kHz sample rate 0 250 V AC DC 10 V 0 5 V 25 35V 10 30 mA Closed lt 100 Q Open 2 kO TM1700 series Circuit Breaker Analyzer System Optional accessories Item Description Art No Software and application kits CABA Win Circuit Breaker analysis software CABA Win incl Ethernet cross over cable CG 8000X CABA Win Upgrade to latest version upgrade CG 8010X Vibration analysis Vibration kit The Vibration kit extends TM1800 and CABA Win with the equip ment and software required for recording and analyzing vibration signals at a circuit breaker The kit includes the signal conditioning unit SCA606 the software CABA Win Vibration and one vibration channel The vibration solution can be extend
22. r Disconnect the breaker by opening the disconnect switches Ground the breaker RWN gt Perform timing The timing tests will now show the correct trip times right Not necessarily Consider a breaker that has been in service without operating for months even years before taking it out of service for timing It might be suffering a lack of grease and maybe corrosion in its bearing These problems can and most probably will slow down the first operations The problem with this procedure is that depending on the procedure the breaker has been operated at least once before the testing begins These few operations might be all it takes to shake off any corrosion problems or sticky bearings and bring the breaker s trip time up to standard So when the actual timing test is performed no problem exists and the service engineer thinks the breaker is in good shape and no further service is needed A few months down the road the corrosion is back and suddenly a fault occurs and the breaker does not trip fast enough or at all This is why it is so important to capture the first operations so any problems with the breaker will be revealed Methods The First Trip measurement is a part of on line testing which means that the circuit breaker is in service We will focus on three measurements coil currents control voltage and contact timing However other measurements that are possible on line can be auxil iary contact timing vibr
23. s 1 2 9 Input for external clamp on CT Control section Three independent contact functions Pre programmed sequences C O C O O C O C O Timing of a and b auxiliary contacts Coil current voltage and resistance Timing Aux section Six galvanic isolated channels Polarity insensitive Dry and wet auxiliary contacts Timing M R section Six inputs High resolution 15uV and up to 40 kHz sampling Main and parallel resistor contact timing Resistance value of parallel resistors Analog section Six channels three optional Supports industrial analog transducers Insulated channels measure up to 250 V whithout volt div High resolution 0 3 mV sampling rate 40 kHz Digital section Six channels Incremental transducers with RS422 Up to 32000 pulses resolution Up to 40 kHz sampling Mains input DC out General voltage source 12 V DRM 10 Earth ground terminal 11 Ethernet port 12 13 14 15 16 17 18 19 20 21 22 23 lee 15 16 17 18 19 TM1700 series Circuit Breaker Analyzer System USB ports Trig IN Used for external trig of the unit Contact make break or voltage signal DCM interface Navigation buttons Works in parallell with the touch screen buttons Most of the CABA Local functions are controlled by the ten navigation buttons Touch screen On Off On screen keyboard On Off Display touch s
24. x ft GA 00999 tension cable Cable reel Black 20 m 65 5 ft Red 4 mm stack able safety Yellow plugs Green Blue Extension For analog input 10 m 33 ft cables For Timing M R modules 10 m XLR female to 33 ft male Art No XB 31010 XB 39030 XB 39130 XB 51010 XB 51020 XB 61010 XB 61020 XB 61030 XB 61040 XB 71010 XB 71013 XB 71020 XB 1023 XB 39029 XB 39013 XB 39036 CG 19180 CG 19181 GA 00840 GA 00842 GA 00844 GA 00845 GA 00846 GA 01005 GA 00851 Item Open analog cable XLR to 4 mm safety plugs Digital trans ducer exten sion cable Open digital cable L amp L digital cable Baumer digi tal cable Doble cable Siemens cable Vanguard cable TP1 Ethernet ca ble network Other Current sensor Transport case Cable organizer TM1700 series Circuit Breaker Analyzer System Description Art No For customized analog transducer connection GA 01000 For customized analog transducer connection GA 00040 RS422 10 m 33 ft GA 00888 For customized digital transducer connection GA 00885 For using Leine amp Linde 530 digital transducer GA 00890 For using Baumer digital trans ducer GA 00895 Adapter for Doble transducer GA 00867 Adapter for Siemens transducer GA 00868 Adapter for Vanguard transducer GA 00869 Digital cable GA 00889 Cable for connection to network LAN GA 00960 Current sensor kit 1 channel Fluke 801 110s incl
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