GE AK-50 Installing the Flux Shifter Assembly, Breakers with EC or Power Sensor Trip Systems

Page 6

Installing the Flux Shifter Assembly

The installation procedure for the flux shifter assembly, illustrated in Figure 3, varies depending on the type of breaker and existing trip device. In some cases, mounting holes must be added, termi- nal blocks relocated, or breaker side rails removed.

Breakers with EC or Power Sensor Trip Systems

1.Drill the flux shifter mounting holes in the left side of the breaker frame. The mounting hole pattern is illustrated in Figure 4. A full-size tem- plate is provided in the Appendix.

2.Mount the new flux shifter to the inside of the side frame with the three screws, lock washers, flat washers, and nuts supplied, as shown in Figure 5. Insert the screws from the outside of the side frame.

Figure 4. Pattern for flux shifter mounting holes in the side frame.

Mounting

 

 

Screws

 

 

Flux Shifter

 

 

 

 

 

 

Assembly

 

 

 

Figure 5. Flux shifter assembly mounted to the side frame.

Figure 3. Flux shifter assembly.

6

Image 6
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 OnlyInstalling 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 Back Frame Conversion Crossbar ModificationRemoving the Existing Trip Devices AK-50 & AKS-50 Breakers with SST Trip SystemsAK-75 & AK-100 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 UnitFOUR-WIRE Ground Fault Option Installing the Fourth-Wire DisconnectAK-50 & AKS-50 Stationary Breakers 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