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Replacing the current transformer (ct) – Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - ForGe Control (PanelView 550) User Manual

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Rockwell Automation Publication 7000-UM151E-EN-P - January 2013

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Component Definition and Maintenance Chapter 3

Figure 24 - Hall Effect Current Sensor (detail)

Replacing the Current Transformer (CT)

1. Isolate and lock out all power to the drive.

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. Disassemble the bus bar to remove the CT. Remove the M10 hardware to

slide out the bus bar.

ATTENTION: To prevent electrical shock, disconnect the main power
before working on the drive. 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.

Base hardware

Arrows must be
oriented properly