Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - ForGe Control - Manual (Page 42)

42 Rockwell Automation Publication 7000-UM202B-EN-P - June 2014
Chapter 3 Component Definition and Maintenance
Figure 31 - Surge Arresters (heat pipe model)
When you disconnect the surge arrester from drive, the arrester may retain a small
amount of static charge. As a precautionary measure, install a temporary ground
on the line-end of the arrester and discharge the stored energy. Remove
temporary ground before reinstalling the arrester. To avoid electrical shock when
removing the arrester from service, treat it as fully energized until you disconnect
both the line and ground leads.
Field Test and Care
No field testing is necessary. The arresters do not require special care. At very
dusty sites, however, you should clean the arrester when cleaning the entire drive.
Surge Arresters