132kV Circuit Breaker Make Siemens Cracked after 10 years of operation why?

[Niha]

Hi i have a grid station and one of our 132kV SF6 Circuit breakers cracked after 10 years of operation.. what could be the reason? Images are attached.

 

[ahsrabrifat]

This thread discusses a number of reasons why an SF6 circuit breaker may fail.

https://maker.pro/forums/threads/catastrophic-failure-sf6-circuit-breaker.170776/

 

[Delta Prime]

Informative discussion but their critical concepts that discussion does not address.Therefore, I will.

Sulphur Hexa Fluride (SF6).
Is colorless, odorless, inert & non-poisonous!A failure in that discussion. But it is a greenhouse gas.
SF6 form corrosive, metal fluorides, each and every time they suppress an arc. You may be well within serviceable lifetime maintenance is critical.
Do you use dead tank enclosure at ground potential?
Or live tank enclosure at line potential?
Until you address my questions, there’s no need to continue, after all , it is your grid station. Not you! but your superiors are incompetent.

 

[Bluejets]

Best ask Seimens themselves.....

 

[davenn]

This isnt the forum to discuss such high voltage systems
It should be looked at by professionals in that field

Thread closed