Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control - Manual (Page 387)

Component Definition and Maintenance 6-43
7000 “C” Frame 7000L-UM300I-EN-P – June 2013
Testing Sharing Resistors
SGCT PowerCages
To determine the sharing resistor value, simply measure the
resistance between the anode and cathode chill blocks. A value
between 60 k
Ω and 75 kΩ indicates a good sharing resistor.
SGCT
Cathode Chill Block
Anode Chill Block
SGCT
Sharing Resistor
Snubber Resistors
Anode Chill block
Cathode Chill block
Test Point
Snubber Capacitor
Figure 6.34 – SGCT Power Cage