GE AK-50 installation instructions List of Figures

Page 3

LIST OF FIGURES

 

1.

Relocation and remounting of the W and X relays

5

2.

New X and W relay mounting brackets

5

3.

Flux shifter assembly

6

4.

Pattern for flux shifter mounting holes in the side frame

6

5.

Flux shifter assembly mounted to the side frame

6

6.

Location of new hole in the flux shifter base

7

7.

Locations of new holes for mounting the OFLO terminal block

7

8.

Existing trip paddles to be removed

8

9.

Installing the new trip paddle

8

10.

Adjusting the flux shifter

8

11.

Mounting hole drill pattern for the trip unit mounting plate

9

12.

Trip unit mounting plate attached to the breaker front channel

9

13.

Trip unit mounting bracket attached to the mounting plate

10

14.

Actuator bracket attached to the left pole link

11

15.

Drill pattern for actuator bracket mounting holes

11

16.

Existing EC trip devices before removal

12

17.

Removal of EC trip devices

12

18.

Parts provided for CT installation per pole

13

19.

CT post mounted in the breaker back frame

13

20.

CT installation completed.. .................................................................................................................... 13

21.

Phase sensor installation on AK-75 & AK-100 breakers

14

22.

Attaching the trip unit to the mounting plate

15

23.

Trip unit mounted on the breaker

15

24.

Fourth-wire terminal board installation on AK-50 & AKS-50 stationary breakers

16

25.

Fourth-wire disconnect installed on AK-50 & AKS-50 draw-out breakers

17

26.

Fourth-wire disconnect assembly for AKD-5 or AKD-6 equipment

17

27.

Fourth-wire disconnect assembly for AKD equipment

17

28.

K-75 & AK-100 back frame conversion

18

29.

Outline of the neutral sensor for AK-50 breakers

19

30.

Outline of the neutral sensor for AK-75 and AK-100 breakers

20

31.

AK-50 & AKS-50 fourth-wire disconnect for AKD

21

32.

AK-75 & AK-100 fourth-wire disconnect for AKD-5 & AKD-6

21

33.

AK-100 fourth-wire disconnect for AKD

21

34.

AK-50 & AKS-50 fourth-wire disconnect for AKD

22

35.

Fourth-wire disconnect for AKD-5 & AKD-6

22

36.

Cabling diagram for ProTrip™ trip units with ground fault on four-wire loads

25

3

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Contents Introduction Table of Contents List of Figures General Information Before InstallationRelocating and Remounting the W and X Relays Front Frame Breaker ConversionBreakers with EC or Power Sensor Trip Systems Installing the Flux Shifter AssemblyAKU-50 Breakers Only Breakers with a Side BracketInstalling the Trip Paddle Adjusting the Flux ShifterBreakers with ECS or SST Trip Systems Installing the Trip Unit Mounting Bracket EC or Power Sensor Trip SystemECS or SST Trip System Trip unit mounting bracket attached to the mounting Plate Crossbar Modification Back Frame ConversionRemoving the Existing Trip Devices AK-50 & AKS-50 Breakers with SST Trip SystemsAK-75 & AK-100 Breakers with SST Trip Systems AK-50 & AKS-50 Breakers Installing the Phase SensorsAK-75 & AK-100 Breakers Phase sensor installation on AK-75 & AK-100 breakersConfiguring the Trip Unit Installing the Trip UnitFOUR-WIRE Ground Fault Option Installing the Fourth-Wire DisconnectAK-50 & AKS-50 Stationary Breakers AK-75 & AK-100 Draw-Out Breakers AK-50 & AKS-50 Draw-Out BreakersAK-75 & AK-100 back frame conversion Outline of the neutral sensor for AK-50 breakers Installing the Neutral SensorOutline of the neutral sensor for AK-75 and AK-100 breakers Equipment Conversion Installing Mounting BracketsFourth-wire disconnect for AKD-5 & AKD-6 Nuisance Tripping on Ground Fault-Equipped Breakers Testing and TROUBLE- ShootingTesting Trouble-ShootingAK-50 Page Page Appendix 1. Drill Template for Flux Shifter Mounting Appendix Drill TemplatesPage Page Page Page GE Industrial Systems