Testing sharing resistors – Rockwell Automation 7000L PowerFlex 7000 Medium Voltage AC Drive C Frame - Marine User Manual
Page 221
Component Definition and Maintenance 4-45
7000 ―C‖ Frame - Marine
7000L-UM302B-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 4.34 – SGCT Power Cage
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