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MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units

Table of Contents

iv

Chapter 5. Maintenance and Trouble-Shooting

5-1 Trip Unit Removal and Replacement ....................................................................... 33

Power Break Insulated-Case Circuit Breakers ..................................................... 33
Power Break II Insulated-Case Circuit Breakers.................................................. 33
Type AKR Low-Voltage Power Circuit Breakers.................................................. 33

5-2 Rating Plug Removal and Replacement.................................................................... 34
5-3 Trouble-Shooting Guide............................................................................................ 34

Appendices

Catalog Numbers for RMS9C Units in AK/AKR Circuit Breakers .................................. 36
Catalog Numbers for RMS9C Units in Power Break® Circuit Breakers.......................... 37
Catalog Numbers for RMS9D Units in Power Break® II Circuit Breakers...................... 38
Trip Unit Battery Suppliers............................................................................................. 39

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Summary of Contents for MicroVersaTrip Plus

Page 1: ...its for Type AKR Low Voltage Power Circuit Breakers Power Break Insulated Case Circuit Breakers Power Break II Insulated Case Circuit Breakers R Frame Molded Case Circuit Breakers Low Voltage Power Circuit Breaker Conversion Kits User s Guide GEH 6273E ...

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Page 3: ...s have been made to ensure accuracy the information contained herein does not cover all details or variations in hardware and software nor does it provide for every pos sible contingency in connection with installation operation and maintenance Features may be described herein that are not present in all hardware and software systems GE Electrical Distribution Control assumes no obligation of noti...

Page 4: ...tion 8 Liquid Crystal Display 9 1 8 MicroVersaTrip Plus and MicroVersaTrip PM Accuracies 9 Chapter 2 Setup Mode 2 1 Overview 10 2 2 Operating Modes 10 2 3 Setup Mode Operation 10 Long Time Pickup 16 Long Time Delay 16 Short Time Pickup 16 Short Time Delay 17 Instantaneous Pickup 18 High Range Instantaneous Overcurrent Protection 18 Ground Fault Pickup 18 Ground Fault Delay 19 Voltage Unbalance Rel...

Page 5: ...Real Power 27 Total Aggregate Power 28 Power Demand 28 Peak Power Demand 28 Frequency 28 Chapter 4 Status Mode 4 1 Overview 29 Trip Information 29 Trip Operations Counters 29 4 2 Status Mode Operation 29 Normal Status Display 29 Long Time Overcurrent Pickup Display 29 Trip Target and Fault Displays 30 Long Time Overcurrent Fault Display 30 Short Time Overcurrent Fault Display 30 Instantaneous Faul...

Page 6: ...wer Break II Insulated Case Circuit Breakers 33 Type AKR Low Voltage Power Circuit Breakers 33 5 2 Rating Plug Removal and Replacement 34 5 3 Trouble Shooting Guide 34 Appendices Catalog Numbers for RMS9C Units in AK AKR Circuit Breakers 36 Catalog Numbers for RMS9C Units in Power Break Circuit Breakers 37 Catalog Numbers for RMS9D Units in Power Break II Circuit Breakers 38 Trip Unit Battery Supp...

Page 7: ...lay for instantaneous pickup 18 20 Instantaneous overcurrent protection set point 18 21 Trip Unit display for ground fault pickup 18 22 Time current curve for ground fault pickup 19 23 Trip Unit display for ground fault delay showing I2T out 19 24 Time current curve for ground fault delay with I2T OUT 19 25 Time current curve for ground fault delay with I2T IN 19 26 Trip Unit display for voltage u...

Page 8: ...y for aggregate energy 27 52 Trip Unit display for aggregate real power 27 53 Trip Unit display for aggregate apparent power 28 54 Trip Unit display for power demand 28 55 Trip Unit display for frequency 28 56 Trip Unit display for normal status 29 57 Trip Unit status display for long time overcurrent pickup 30 58 Typical fault display following a breaker trip 30 59 Trip Unit Status display for lo...

Page 9: ...ctive relay and metering accuracies and resolutions 9 8 Trip time curves for breaker types covered in this guide 9 9 Abbreviations used in setup procedure descriptions 10 10 Actions of function keys in Trip Unit operating modes 11 11 Lower limit delays for long time delay bands 16 12 Lower limit delays for I2T OUT short time delay bands 17 13 Instantaneous pickup settings for various frame sizes w...

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Page 11: ...s is available in both MicroVersaTrip Plus and MicroVersaTrip PM configurations The front views of the MicroVersaTrip PM Trip Units are shown in Figures 1 RMS9C and 2 RMS9D The RMS9C Trip Unit has a 36 pin rear connector while the RMS9D Trip Unit has a 50 pin rear con nector as shown in Figures 3 and 4 These connec tors provide the Trip Units main connections to the circuit breaker frame and to th...

Page 12: ... T TI I I IO O O ON N N N Ne pas utiliser le disjoncteur sans son déclencheur Une mauvaise installation du déclencheur peut être dangereuse C C C CA A A AU U U UT T T TI I I IO O O ON N N N Removal of the rating plug while the breaker is carrying current reduces the breaker s current carrying capacity to approximately 25 of the current sensor rating This may result in unde sired tripping A A A AT ...

Page 13: ...l real power kW MW Total apparent power kVA MVA Demand power kW MW Peak demand power kW MW Frequency Hz Protective relaying Undervoltage Overvoltage Voltage unbalance Current unbalance Power reversal N N N NO O O OT T T TE E E E MicroVersaTrip PM style Trip Units require external 24 Vdc control power N N N NO O O OT T T TE E E E Le déclencheur de type MicroVersaTrip PM necessite l utilisation d un...

Page 14: ...p PM style Trip Units They are appended from left to right in the order given S S S Su u u uf f f ff f f fi i i ix x x x P P P Pr r r ro o o ot t t te e e ec c c ct t t ti i i iv v v ve e e e F F F Fu u u un n n nc c c ct t t ti i i io o o on n n n S Short time overcurrent protection I Instantaneous overcurrent protection H Fixed high range instantaneous K Fixed high range instantaneous AKR 30S on...

Page 15: ... e e es s s s TR1B60 60 TR16B600 600 SSD SSF SHD SHF TR1B80 80 AKR30 TR16B800 800 TC1610 THC1610 TR1B100 150 100 AKR30S AKR30H TR16B1000 1000 AKR50S AKR50H TR1B125 125 Conversion Kits TR16B1100 1600 1100 TP1616 THP1616 TR1B150 150 TR16B1200 1200 Conversion Kits TR2B100 100 SSD SSF SHD SHF TR16B1600 1600 TR2B150 200 150 TP82 THP82 TR20B750 750 SSD SSF SHD SHF TR2B200 200 TC82 THC82 TR20B800 800 TC2...

Page 16: ...p PM Trip Units also receive inputs from external voltage conditioners a 24 Vdc control power supply and communication connections External 24 Vdc control power is required for operation RMS9C type MicroVersaTrip PM Trip Units require a connection to an auxiliary switch within the breaker that senses the breaker position This connection is not required for RMS9D type MicroVersaTrip PM Trip Units u...

Page 17: ... rating plug test receptacle Power Break II Undervoltage Release and Shunt Trip Accessories When energized these accessories supply 24 Vdc power to the Trip Unit 1 7 Trip Unit Information Trip Unit Label Information Following are descriptions of the various labels on the front of the Trip Unit as illustrated in Figure 5 Extreme top circuit breaker series and or serial number of the breaker unless ...

Page 18: ... The battery is not required for proper operation or protection of the breaker It is not needed nor used to store setpoints configurations or trip target information It provides a source of power to display setpoints and trip information only if no other source of power is available Battery Replacement Replace the battery if it does not power up the Trip Unit or if the low battery symbol appears i...

Page 19: ... listed in Table 8 for characteristics and accuracies of overcurrent protec tion V V V Va a a al l l lu u u ue e e e F F F Fu u u ul l l ll l l l S S S Sc c c ca a a al l l le e e e A A A Ac c c cc c c cu u u ur r r ra a a ac c c cy y y y R R R Re e e es s s so o o ol l l lu u u ut t t ti i i io o o on n n n Current A kA 2 0 5 digit Voltage V 1 5 0 5 digit Energy kWh MWh GWh 3 5 0 5 digit Real pow...

Page 20: ...e function keys except for ENTER automatically step the Trip Unit display to the next available option each time the key is pressed Continued press ing of a key eventually loops the display back to the initial option for that function This is illustrated in Figure 8 for the FUNCTION key which shows that repeatedly pressing this key cycles the mode among Status Metering and Setup Pressing the ENTER...

Page 21: ...ey to select this set point The displayed value stops flashing and the SETUP icon flashes on the LCD This indicates that the value has been stored in memory but is not yet active If a new set point is displayed but not selected by pressing the ENTER key set point value still flashing then the displayed set point is not entered into memory and the original value is maintained Multiple set point cha...

Page 22: ...MicroVersaTrip Plus and MicroVersaTrip PM Trip Units Chapter 2 Setup Mode 12 Figure 9 Trip Unit setup mode programming function flow ...

Page 23: ...MicroVersaTrip Plus and MicroVersaTrip PM Trip Units Chapter 2 Setup Mode 13 Figure 9 Trip Unit setup mode programming function flow continued ...

Page 24: ...MicroVersaTrip Plus and MicroVersaTrip PM Trip Units Chapter 2 Setup Mode 14 Figure 9 Trip Unit setup mode programming function flow continued ...

Page 25: ...MicroVersaTrip Plus and MicroVersaTrip PM Trip Units Chapter 2 Setup Mode 15 Figure 9 Trip Unit setup mode programming function flow continued ...

Page 26: ... pickup Long Time Delay The Trip Unit display for long time delay is illus trated in Figure 12 This function allows normal momentary overloads without nuisance tripping The time delays at the lower limit of the bands at 600 of the long time current setting xLT are listed in Table 11 Figure 13 illustrates the effect of this delay on trip time Press the VALUE key to cycle through the four choices of...

Page 27: ...ith the user selectable switchable instantaneous overcurrent and ground fault option X an additional value of OFF appears at the end of the delay band settings Choosing OFF disables short time protection The short time OFF band is interlocked with instantaneous pickup so that only one function can be turned off at a time The I2T OUT function illustrated in Figure 17 estab lishes a constant time de...

Page 28: ... sizes with and without the short time function On Trip Units with the user selectable switchable instantaneous overcurrent and ground fault option X an additional value of OFF appears at the end of the listing of numerical values Choose this setting to disable instantaneous protection The instantaneous OFF selection is interlocked with short time pickup so that only one function can be turned off...

Page 29: ...an OFF selection appears as an additional time delay set point Selecting OFF disables ground fault protec tion Figure 23 Trip Unit display for ground fault delay showing I2T out B B B Ba a a an n n nd d d d T T T Ti i i im m m me e e e D D D De e e el l l la a a ay y y y s s s se e e ec c c c OFF Disabled 1 0 10 2 0 21 3 0 35 Table 15 Lower limit delays for ground fault delay bands Figure 24 Time ...

Page 30: ...balance relay pickup Current Unbalance Relay Delay This function sets the delay time before a current unbalance trip occurs The range of delays is 1 to 15 seconds in steps of 1 second Choosing OFF disables current unbalance protection The Trip Unit display is shown in Figure 29 Figure 29 Trip Unit display for current unbalance relay delay Undervoltage Relay Pickup This function measures the true r...

Page 31: ...nge of delays is 1 to 15 sec onds in steps of 1 second Choosing OFF disables overvoltage protection The Trip Unit display is shown in Figure 35 Figure 35 Trip Unit display for overvoltage relay delay Power Reversal Relay Pickup This function measures the direction of power flow through the breaker and initiates a trip if a sufficient magnitude of reverse power is detected The range of set points i...

Page 32: ... 1600 2000 2500 320 0 A 1200 1500 1600 2000 2400 2500 3000 3200 4000 A 1600 2000 2400 2500 3000 3200 3600 4000 5000 A 3200 4000 5000 Table 16 Trip Unit rating plug options Potential Transformer Primary Voltage Enter the primary voltage rating of the potential transformer as illustrated in Figure 40 The range of values is 120 to 600 volts with an increment of 1 volt C C C CA A A AU U U UT T T TI I ...

Page 33: ...c MicroVersaTrip systems the Field Programming Unit FPU calls for removal of the rating plug This is not required for addressing a MicroVersaTrip PM Trip Unit Simply press ENTER to identify the unit to the FPU The address shown on the FPU s display must not be changed at the breaker Accessory Configuration Setup RMS9D Series Trip Units Only RMS9D Trip Units have a six position DIP switch module on...

Page 34: ...p activates Bell Alarm with Lockout 6 Enabled Protection trip activates Bell Alarm with Lockout Table 17 Accessory configuration switch settings including factory defaults 3 3 3 3 When a protection trip long time short time instantaneous ground fault or protective relay occurs the contacts of the Bell Alarm Alarm Only also change state The factory switch setting is enabled 4 4 4 4 When the Shunt T...

Page 35: ...t metering displays are appropriate to the actual configuration ordered All MicroVersa Trip Plus and MicroVersaTrip PM Trip Units include current metering Two configurations of the MicroVersaTrip PM Trip Units with PM and M suffixes in their catalog numbers have the full complement of metering displays The Trip Unit must be provided with control power to display metered values This can come from i...

Page 36: ...MicroVersaTrip Plus and MicroVersaTrip PM Trip Units Chapter 3 Metering Mode 26 Figure 47 Trip Unit metering mode function flow continued ...

Page 37: ...Unit display for line to neutral voltages Figure 50 Trip Unit display for line to line voltages Energy This display illustrated in Figure 51 shows the aggregate energy flow through the breaker The value is displayed from 0 to 999 kWh then automati cally switches units to display 1 00 to 999 Mwh and then again to display 1 00 to 999 GWh When 999 GWh is exceeded the display switches back to 0 kWh Th...

Page 38: ...and is calculated and compared against the stored peak power demand If the new power demand is greater than the stored peak demand the Trip Unit stores the new power demand as the peak value The display of peak power demand is identical to the display illustrated in Figure 54 except that the units segment in this case MW flashes Peak demand is stored in nonvolatile memory The value in the display ...

Page 39: ...t The Status display records trip information only for those options ordered with the Trip Unit For exam ple only MicroVersaTrip PM Trip Units can be equipped with protective relays and thus display information about them RMS9D series Trip Units only display trip targets for Undervoltage Release and Shunt Trip accessory trips when those accessory modules are installed in the Power Break II breaker...

Page 40: ...til cleared Long Time Overcurrent Fault Display After a long time overcurrent trip the trip informa tion display contains the fault current magnitude at trip the phase on which the fault occurred and the overload I and long time LT trip targets This display is illustrated in Figure 59 Figure 59 Trip Unit Status display for long time overcurrent trip Short Time Overcurrent Fault Display After a sho...

Page 41: ...a Power Break II breaker trips due to the Shunt Trip Shunt Trip with Lockout or Undervoltage Release the display indicates the trip with a flashing target as illustrated in Figure 64 The indications ST and UVR appear for Shunt Trip and Undervoltage Release trips respectively Note that the FAULT segment does not display since the trip originated external to the breaker and may not represent a true ...

Page 42: ...rrent trip counter Clearing the Trip Operations Counters Since the trip operations counters are stored in non volatile memory the Trip Unit maintains the infor mation indefinitely To clear a particular counter first display the corresponding count then hold down the VALUE key and press the SELECT key The trip counter is reset to zero ...

Page 43: ... perform the following procedure W W W WA A A AR R R RN N N NI I I IN N N NG G G G Before beginning this procedure turn the breaker OFF disconnect it from all voltage sources and discharge the closing springs if they are charged by closing and then opening the breaker A A A AV V V VE E E ER R R RT T T TI I I IS S S SS S S SE E E EM M M ME E E EN N N NT T T T Avant de commencer cette procédure mett...

Page 44: ... courant le niveau de protection s ajuste à approximativement 25 du calibre du transformateur d intensité Interchangeable rating plugs are removed with a Rating Plug Extractor Catalog No TRTOOL Suitable equivalents are commercially available as integrated circuit DIP extractors Grasp the rat ing plug tabs with the extractor and pull the plug out as illustrated in Figure 66 Be sure to grab the tabs...

Page 45: ...l STATUS is displayed Hold down the VALUE key and press theSELECT key to clear the target 5 Unit does not com municate with the Monitor POWER LEADER Distribution Software or FPU The commnet wires are shorted or improperly connected FPU version is lower than 2 0 The Trip Unit address is incorrect Locate and repair the short or the incorrect con nection Update the FPU to version 2 0 or higher Check ...

Page 46: ...n ns s s st t t ta a a al l l ll l l le e e ed d d d C C C CT T T T L S H I K Long time standard Short time High instantaneous Instantaneous Fixed high instantaneous O O O Ov v v ve e e er r r rc c c cu u u ur r r rr r r re e e en n n nt t t t P P P Pr r r ro o o ot t t te e e ec c c ct t t ti i i io o o on n n n G GD W Ground fault Defeatable ground fault not UL listed W curve G G G Gr r r ro o o...

Page 47: ... 1000 A 1600 A 2000 A 2500 A 3000 A 4000 A I I I In n n ns s s st t t ta a a al l l ll l l le e e ed d d d C C C CT T T T L S H I Long time standard Short time High instantaneous Instantaneous O O O Ov v v ve e e er r r rc c c cu u u ur r r rr r r re e e en n n nt t t t P P P Pr r r ro o o ot t t te e e ec c c ct t t ti i i io o o on n n n G GD Ground fault Defeatable ground fault not UL listed G ...

Page 48: ...800 A 1000 A 1600 A 2000 A 2500 A 3000 A 4000 A I I I In n n ns s s st t t ta a a al l l ll l l le e e ed d d d C C C CT T T T L S H I Long time standard Short time High instantaneous Instantaneous O O O Ov v v ve e e er r r rc c c cu u u ur r r rr r r re e e en n n nt t t t P P P Pr r r ro o o ot t t te e e ec c c ct t t ti i i io o o on n n n G GD Ground fault Defeatable ground fault not UL list...

Page 49: ... S Su u u up p p pp p p pl l l li i i ie e e er r r r C C C Ca a a at t t ta a a al l l lo o o og g g g N N N Nu u u um m m mb b b be e e er r r r Wilson Greatbatch Ltd Electrochem Lithium Batteries 10 000 Wehrle Drive Clarence NY 716 759 5428 3B24 XA Contact the supplier for the nearest distributor ...

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Page 52: ...g GE Electrical Distribution Control General Electric Company 41 Woodford Ave Plainville CT 06062 GEH6273 R06 1299 1999 General Electric Company ...

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