beautypg.com

Sgct anode-to-cathode resistance – Rockwell Automation 7000 PowerFlex Medium Voltage (B Frame) Commissioning - ForGe (PanelView 550) User Manual

Page 61

background image

Rockwell Automation Publication 7000-IN006B-EN-P - May 2013

57

Commissioning the Drive Chapter 5

Figure 32 - SGCT Snubber Circuit Connections

If a device or snubber component is damaged, replace it following the detailed
procedures in the PowerFlex 7000 ‘B’ Frame User Manual’s “Component
Definition and Maintenance” section.

SGCT Anode-to-Cathode Resistance

Performing an Anode-to-Cathode resistance test not only tests the integrity of
the SGCT but also the integrity of the sharing resistor. An abnormal device
resistance measurement will indicate either a shorted device or damaged sharing
resistor.