BREAKER POLE SHATTERING ONE AFTER THE OTHER.
BREAKER POLE SHATTERING ONE AFTER THE OTHER.
(OP)
Good day my fellow engineers, i must acknowledge the good work you all are doing here, i am new to this forum, i have a serious issue with our secondary breaker to a feeder,the circuit breaker pole started shattering one after the other from red, yellow to the blue phase, the transformer is a 60MVA transformer please anyone have clue as to solving this issue? any other details can be posted if needed. thanks






RE: BREAKER POLE SHATTERING ONE AFTER THE OTHER.
Bill
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"Why not the best?"
Jimmy Carter
RE: BREAKER POLE SHATTERING ONE AFTER THE OTHER.
RE: BREAKER POLE SHATTERING ONE AFTER THE OTHER.
This failure sounds fairly serious so I would expect that Schneider would be interested, if only to clear their name. Their technical support people would be my first call. My first guess is that there is an installation / workmanship problem.
RE: BREAKER POLE SHATTERING ONE AFTER THE OTHER.
RE: BREAKER POLE SHATTERING ONE AFTER THE OTHER.
If the problem occurs during a switching (or relay), this may also be indicative of poor adjustment of the mechanism (overtravel / rebound). Were the breakers tested in the field (timing / travel)? Do you have copies of the factory test data?
RE: BREAKER POLE SHATTERING ONE AFTER THE OTHER.
RE: BREAKER POLE SHATTERING ONE AFTER THE OTHER.
I was thinking it was mechanism related. If the breaker was sitting closed and no fault occurred.
Is this an outdoor breaker in an air insulated substation?
RE: BREAKER POLE SHATTERING ONE AFTER THE OTHER.
As a youngster I can recall trying to shoot OHL insulators with an air rifle
RE: BREAKER POLE SHATTERING ONE AFTER THE OTHER.
Gunnar Englund
www.gke.org
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