Switchgear Replacement
Switchgear Replacement
(OP)
I am performing some preliminary engineering to upgrade our 20+ year Westinghouse DHP and DH switchgear breakers with new replacement breakers. Does anyone have any experiences upgrading switchgear breakers or any good tips or lessons learned that I can take advantage of?
The replacement breakers are advertised as direct roll-in replacements, but there are always small hitches.
The replacement breakers are advertised as direct roll-in replacements, but there are always small hitches.





RE: Switchgear Replacement
Things usually go a little smoother if you can stick with the original switchgear manufacturer for the new breakers.
RE: Switchgear Replacement
Other than that, our replacement went ok other than the ground shoe on the breaker enclosure was not the right size and had to be modified.
We still have yet to put one in successfully but we are on hold due to other projects and the contractors schedule. I think it will all go smoothly from here on out.
Ours are Magneblast type AM breakers being fitted with vacuum.
RE: Switchgear Replacement
Check the snubber adjustment to have the replacement breaker fit correctly in the existing cubicle.
Test the control wiring on each breaker for trip and close operation prior to scheduling a field shutdown.
There are some other minor items which have cropped up occasionally but are the exception rather than the rule.
Contact me if you would like some more information