Sgct and snubber circuit – Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - ForGe Control (PanelView 550) User Manual
Page 52
52
Rockwell Automation Publication 7000-UM151E-EN-P - January 2013
Chapter 3 Component Definition and Maintenance
Figure 32 - 6 Device PowerCage
SGCT and Snubber Circuit
With all power semiconductor or thyristors, the SGCT requires a snubber
circuit. The snubber circuit for the SGCT consists of a snubber resistor in series
with a snubber capacitor.
Figure 33 - SGCT and snubber circuit
Matched set
3 SGCTs
Module housing
Temperature
Feedback board
Clamp head
Matched set
3 SGCTs
Clamp Base
Heatsink
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