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Power Break

®

Circuit Breakers

Chapter 1. Receiving and Installation

2

Figure 3. Location of mounting bolt inserts on 1600–2000 A frame

breakers.

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Summary of Contents for Power Break

Page 1: ...g Power Break Circuit Breakers 800 2000 A Frames 240 600 Vac GEH 4693D User s Guide ...

Page 2: ......

Page 3: ...its publication While efforts have been made to ensure accuracy the information contained herein does not cover all details or varia tions in hardware and software nor does it provide for every possible contingency in connection with installation operation and maintenance Features may be described herein that are not pres ent in all hardware and software systems GE Industrial Systems assumes no ob...

Page 4: ...ersaTrip RMS 9 Trip Units 6 MagneTrip Trip Units 9 MicroVersaTrip Plus and MicroVersaTrip PM Trip Units 9 Chapter 3 Accessories 3 1 Introduction 10 3 2 Circuit Breaker Cover 10 Breaker Cover Removal 10 Breaker Cover Reassembly 11 3 3 Shunt Trip Device 12 Mounting Plate Removal 12 Shunt Trip Installation 13 Mounting Plate Installation 13 3 4 Undervoltage Release Device 14 UVR Installation 14 3 5 Bl...

Page 5: ...it 8 15 Aligning the trip unit to the mounting plate 9 16 Adjusting the settings on a MagneTrip trip unit 9 17 800 A frame electrically operated breaker 10 18 1600 2000 A frame electrically operated breaker 11 19 1600 2000 A frame electrically operated breaker with the outer cover removed 11 20 Wire ties on the accessory leads and mounring plate insulator 11 21 Crossbar hook engaging the drive hoo...

Page 6: ...n padlock with panel door interlock 19 45 Defeating the OFF button padlock 19 Tables 1 Weights of the various breaker frame sizes with and without a motor operator 1 2 Bolt sizes and mounting torques for bus connections 1 3 Sequence of operations that may be performed with Power Break circuit breakers 4 3 Application data for control power 5 4 Accessory lead color codes 10 5 Shunt Trip electrical ...

Page 7: ...ge in a warm dry room Circuit breakers for outdoor equipment should be stored in that equipment only when power is available and heat ers are in operation to prevent condensation The breaker should be stored in a clean location free from corrosive gases or fumes In particular protect the breaker from moisture and cement dust as that combina tion may be corrosive If the breaker is stored for any le...

Page 8: ...Power Break Circuit Breakers Chapter 1 Receiving and Installation 2 Figure 3 Location of mounting bolt inserts on 1600 2000 A frame breakers ...

Page 9: ...nit G G G G Removable protective window J J J J CT tap setting indicator MicroVersaTrip only K K K K Removal protective trip unit cover Magnetrip only L L L L Cover mounting screws four M M M M Midcover mounting screws three motor operated only N N N N MicroVersaTrip RMS 9 trip unit interchangeable rat ing plug O O O O Motor operator control circuit fuses P P P P MicroVersaTrip RMS 9 test set conn...

Page 10: ...nnecting terminal 5 to terminal 6 Opening the Breaker Open the breaker contacts with either of the following methods Depress the PUSH OFF button on the breaker escutcheon Energize the optional shunt trip accessory or deen ergize the optional undervoltage release accessory Operating Instructions for Electrically Charged Breakers Charging the Mechanism Springs Charge the mechanism springs with eithe...

Page 11: ...continuous cycling of the automatic charging mechanism Figure 8 Wiring for optional bell alarm lockout applications Wiring Notes Observe the following notes when wiring the breaker for operation Customer supplied contacts such as CHARGE and CLOSE should be momentary action rated for 0 25 A at 125 Vdc for dc motor operators or rated for 3 A at 120 Vac for ac motor operators Do not apply power to an...

Page 12: ... trip unit rating plugs may be changed per GEH 5369 and GEH 5371 without void ing the UL listing MicroVersaTrip trip units and tap changer cards may be installed or replaced per GEH 4657 and this manual without voiding the UL listing MicroVersaTrip Plus and MicroVersaTrip PM trip units and rating plugs may be changed or replaced per GEH 6273 without voiding the UL listing MicroVersaTrip and MicroV...

Page 13: ...TE E E E A deenergized undervoltage release will not allow the mechanism to charge and close 7 7 7 7 Store the extra tap card in a convenient place Figure 11 Neutral CT connection for four wire ground fault Neutral Current Transformer Four Wire Ground Fault System Ground fault protection is offered as an optional function of the MicroVersaTrip trip unit However all MicroVer saTrip generation break...

Page 14: ...CTs Special trip units for AK breakers with the M no instantaneous function may not be used with Power Break breakers Refer to GEH 4657 for installation or replacement of MicroVersaTrip trip units with remote overload indication and for recommended wiring for zone selective interlock To change or install trip units without remote indication use the following procedure W W W WA A A AR R R RN N N NI...

Page 15: ...nctioning mechanically before energizing or connecting it to the electrical system N N N NO O O OT T T TE E E E A deenergized undervoltage release will not allow the mechanism to charge and close 6 6 6 6 For trip units with ground fault a neutral CT must be provided if a four wire system is to be used See the section on neutral CTs for instructions and precau tions Do not short the ground fault te...

Page 16: ... as described in the following sections W W W WA A A AR R R RN N N NI I I IN N N NG G G G Before installing any accessories completely de energize the circuit breaker and disconnect it from the electrical circuit This is mandatory since the breaker must be ON during certain stages of installation and testing C C C CA A A AU U U UT T T TI I I IO O O ON N N N Do not turn the breaker upside down sinc...

Page 17: ...at the home position 6 o clock on the cover Align the cover mounting screw holes with the breaker base and install the four cover screws Tighten the screws to 50 60 in lbs Figure 20 Wire ties on the accessory leads and mounting plate insulator Electrically Operated Breakers 1 1 1 1 Verify that all connections are secure and the breaker is free of debris C C C CA A A AU U U UT T T TI I I IO O O ON ...

Page 18: ... 2 05 TPST7S 12 Vdc 4 00 TPST8S 24 Vdc 2 18 TPST9S 48 Vdc 1 09 TPST10S 125 Vdc 1 00 TPST11S 250 Vdc 0 21 Table 5 Shunt Trip electrical characteristics Figure 23 Shunt trip wiring diagram Mounting Plate Removal The mounting plate is used as the anchor position for the shunt trip blown fuse trip and undervoltage release accessories Breakers are shipped from the factory with either a mounting plate o...

Page 19: ...ll debris from the inside of the breaker N N N NO O O OT T T TE E E E Shunt trip coils rated at 12 Vdc or 24 Vdc must be mounted in the position nearest the latch These coils may not develop enough force to drive both the latch and the blown fuse trip device Figure 25 Shunt trip coil position with no blown fuse trip device Mounting Plate Installation 1 1 1 1 Replace the molded drive crank onto the...

Page 20: ...unt ing plate Some breakers have only an L shaped bracket to retain the molded plastic crank A mount ing plate is provided in the UVR kit If the breaker is supplied with an L shaped bracket remove the two retaining screws and dis card the bracket Follow the Mounting Plate Installation instructions and continue on to step 3 If the breaker is supplied with a mounting plate continue with step 3 3 3 3...

Page 21: ...lling the UVR mounting screw 1 1 1 13 3 3 3 Perform the following functional check of the UVR a a a a Apply rated voltage to the UVR coil b b b b Turn the breaker on c c c c Reduce the control voltage The breaker should trip when the voltage drops to 35 60 of its rated value 1 1 1 14 4 4 4 Apply the UVR descriptive label to the left side of the breaker near the lead exit area 3 5 Blown Fuse Trip D...

Page 22: ...y mounting plate as shown in Figure 26 If a shunt trip had previously been mounted as shown in Figure 25 it must be relocated as shown in Figure 26 with its plunger stop nut in contact with the plunger of the blown fuse trip device 3 3 3 3 Follow the procedure for Mounting Plate Installation 4 4 4 4 Perform the following installation checks a a a a Replace the breaker cover as described above Clos...

Page 23: ...be installed in the right pole remove the trip unit by depressing the lock release lever while lifting up on the trip unit Remove the trip unit mounting plate shown in Figure 38 4 4 4 4 Position the auxiliary switch assembly so that the tapped mounting holes on its bracket line up with the through holes in the arm stop as shown in Figure 39 5 5 5 5 Secure the auxiliary switch assembly to the arm s...

Page 24: ...mote close solenoid Figure 41 Wiring diagram for remote charge indication Figure 42 Wiring diagram for remote charge indication with remote close solenoid Catalog No Rated Voltage Operating Range V Current at Max Voltage A Maximum Closing Time s Maximum Operating Time s TPXCC12S 120 Vac 102 132 3 3 0 083 0 050 TPXCC14S 240 Vac 204 264 1 7 0 083 0 050 TPXCC08S 24 Vdc 19 29 13 0 083 0 050 The power ...

Page 25: ...door when the breaker is ON or CHARGED It operates as follows With the breaker OFF the paddle can be rotated counterclockwise over the breaker nameplate to clear the enclosure panel door Rotate the paddle clock wise to lock the door as shown in Figure 44 To defeat the interlock when the breaker is ON or CHARGED depress the spring and rotate the paddle to clear the door as shown in Figure 45 Figure...

Page 26: ... carefully removed Do not use solvents on insulating mate rial A rotating program providing for a periodic withdrawal from service of each breaker in turn for inspection and maintenance is an excellent means of establishing a high level of service reliability In such cases one or more spare breakers and all accessories should be available during the maintenance inspection to replace any breaker th...

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Page 28: ...g GE Industrial Systems General Electric Company 41 Woodford Ave Plainville CT 06062 GEH4693 R05 0998 1998 General Electric Company ...

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