GE AK-50 installation instructions Table of Contents

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TABLE OF CONTENTS

 

SECTION 1. GENERAL INFORMATION

4

SECTION 2. BEFORE INSTALLATION

4

SECTION 3. FRONT FRAME BREAKER CONVERSION

 

Relocating and Remounting the W and X Relays

5

Installing the Flux Shifter Assembly

6

Breakers with EC or Power Sensor Trip Systems

6

Breakers with a Side Bracket

7

AKU-50 Breakers Only

7

Breakers with ECS or SST Trip Systems

8

Installing the Trip Paddle

8

Adjusting the Flux Shifter

8

Installing the Trip Unit Mounting Bracket

9

EC or Power Sensor Trip System

9

ECS or SST Trip System

9

SECTION 4. BACK FRAME CONVERSION

 

Crossbar Modification

11

Removing the Existing Trip Devices

12

AK-50 & AKS-50 Breakers with EC or Power Sensor Trip Systems

12

AK-50 & AKS-50 Breakers with SST Trip Systems

12

AK-75 & AK-100 Breakers with EC or Power Sensor Trip Systems

12

AK-75 & AK-100 Breakers with SST Trip Systems

12

Installing the Phase Sensors

13

AK-50 & AKS-50 Breakers

13

AK-75 & AK-100 Breakers

14

SECTION 5. INSTALLING THE TRIP UNIT

 

Configuring the Trip Unit

15

SECTION 6 FOUR-WIRE GROUND FAULT OPTION

 

Installing the Fourth-Wire Disconnect

16

AK-50 & AKS-50 Stationary Breakers

16

AK-50 & AKS-50 Draw-Out Breakers

17

AK-75 & AK-100 Draw-Out Breakers

17

Installing the Neutral Sensor

19

SECTION 7. EQUIPMENT CONVERSION

 

Installing Mounting Brackets

21

SECTION 8. TESTING AND TROUBLE-SHOOTING

 

Testing

23

Trouble-Shooting

23

Nuisance Tripping on Ground Fault-Equipped Breakers

23

APPENDIX – DRILL TEMPLATES

 

Appendix 1. Drill Template for Flux Shifter Mounting

27

Appendix 2. Drill Template for Trip Unit Mounting

29

Appendix 3. Drill Template for Flux Shifter Mounting

29

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Contents Introduction Table of Contents List of Figures Before Installation General InformationFront Frame Breaker Conversion Relocating and Remounting the W and X RelaysInstalling the Flux Shifter Assembly Breakers with EC or Power Sensor Trip SystemsBreakers with a Side Bracket AKU-50 Breakers OnlyBreakers with ECS or SST Trip Systems Installing the Trip PaddleAdjusting the Flux Shifter ECS or SST Trip System Installing the Trip Unit Mounting BracketEC or Power Sensor Trip System Trip unit mounting bracket attached to the mounting Plate Back Frame Conversion Crossbar ModificationAK-75 & AK-100 Breakers with SST Trip Systems Removing the Existing Trip DevicesAK-50 & AKS-50 Breakers with SST Trip Systems Installing the Phase Sensors AK-50 & AKS-50 BreakersPhase sensor installation on AK-75 & AK-100 breakers AK-75 & AK-100 BreakersInstalling the Trip Unit Configuring the Trip UnitAK-50 & AKS-50 Stationary Breakers FOUR-WIRE Ground Fault OptionInstalling the Fourth-Wire Disconnect AK-50 & AKS-50 Draw-Out Breakers AK-75 & AK-100 Draw-Out BreakersAK-75 & AK-100 back frame conversion Installing the Neutral Sensor Outline of the neutral sensor for AK-50 breakersOutline of the neutral sensor for AK-75 and AK-100 breakers Installing Mounting Brackets Equipment ConversionFourth-wire disconnect for AKD-5 & AKD-6 Trouble-Shooting Testing and TROUBLE- ShootingTesting Nuisance Tripping on Ground Fault-Equipped BreakersAK-50 Page Page Appendix Drill Templates Appendix 1. Drill Template for Flux Shifter MountingPage Page Page Page GE Industrial Systems