Connecting a substation double 138 kV busbar with a disconnector 2

[Bronzeado]

Hi folks,

Please, find attached a double busbar configuration where the circuit-breaker that connects the busbars does not exist and the busbars connection is make by a normal disconnector, which is wearing out quickly.
The questions are:
1. Why this happens (disconnector wearing out so quickly)?
2. Is this normal disconnector applied wrongly?
3. What kind of disconnector shoud be applied in this case (specification)?
4. What kind of phenomena occur during disconnector operation?

Cheers,

Herivelto S. Bronzeado
Brasília, Brazil

https://www.linkedin.com/in/heriveltobronzeado/

https://www.researchgate.net/profile/Herivelto_Bronzeado

 

[RRaghunath]

Bronzeado,
As I said disconnector is not adequate, there has to be circuit breaker as well in bus coupler circuit.

 

[crshears]

Agreed.

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]