We have Siemens 3AH3 type VCB installed in our 33kv Substation for powering furnace transformer via another breaker - 3AH4 type.
From past two due to Maximum Demand there has been frequent "on load" "switching off" of this breaker-3AH3 type (around 40 times a day).
Before that this breaker rarely operated on load.
Yesterday there was a flashover in incoming busbar of this breaker.
I wanted to ask if this flashover could be a result of frequent on-load operation of this breaker.
Thanks and regards
From past two due to Maximum Demand there has been frequent "on load" "switching off" of this breaker-3AH3 type (around 40 times a day).
Before that this breaker rarely operated on load.
Yesterday there was a flashover in incoming busbar of this breaker.
I wanted to ask if this flashover could be a result of frequent on-load operation of this breaker.
Thanks and regards