Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive (A Frame) - ForGe Control - Manual (Page 56)

56 Rockwell Automation Publication 7000A-UM200C-EN-P - June 2014
Chapter 3 Component Definition and Maintenance
Current Transformer
Replacement 1. Ensure there is no power to the equipment.
2. Note the location of all wires and the orientation of the CT. For quick
reference when checking the orientation of the CT, look for the white dot.
3. Disconnect the wires.
4. The line cable must be disassembled to allow removal of the CT. Remove
the hardware to allow the cable to slide out.
5. Remove the two screws located in the base of the CT and remove the CT.
6. Replace the CT, ensuring the proper orientation. Fasten the CT securely
with the two screws in the base.
7. Reconnect the ring lugs.
8. Slide the line cable back into place and secure the hardware.
Figure 41 - Replacement of Current Transformer
ATTENTION: To prevent electrical shock, ensure the main power has been
disconnected before working on the current transformer. Verify that all circuits
are voltage free using a hot stick or appropriate voltage-measuring device.
Failure to do so may result in injury or death.
IMPORTANT The CT and wires must be in the proper orientation. Note the position before
disassembly.
Cabling Cabinet Line Reactor / Starter Cabinet
Current Transformer (CT)
Current Transformer