HV circuit breakers which are located usually at substations

you mean single-bus single breaker arrangement?

i think this article review the bus bar breakers: Article Reliability Study of HV Substations Equipped With the Fault ...

Busbars are protected by differential protection. More about that from GE is in attachment. Breakers need to be designed for max breaking current of 3 phase faults.

Srete Nikolovski Dear Srete, thanks for the response. I have another question if you can answer please,

How to conduct sequential Monte Carlo simulation in Digsilent?

You have it in module Generator adequacy assessment

Srete Nikolovski I know but I want to calculate the system cost using sequential MC, how to do that?

I do not are the cost included in Generator assessment module. Maybe you have some DLP script for it ??

No, but I dont think cost is there in the module.

I think the following article will help you:

https://www.researchgate.net/publication/268414718_RELIABLE_BUSBAR_AND_BREAKER_FAILURE_PROTECTION_WITH_ADVANCED_ZONE_SELECTION

Good luck.

Hassan

There is no special circuit breaker to protect against busbar faults. Each busbar in high voltage substation (or medium voltage or even in low voltage) have several or many feeders. Feeders have their own circuit breaker. This circuit breaker have rated current for normal operation and it is specified a breaking current for short circuit circumstances. Therefore, busbar faults happened on busbars not on feeder. If there is busbar fault all feeders circuit breaker should be operate to eliminate the fault on busbar.

Srete Nikolovski Do you know the DPL code for modelling a Poisson distribution?

I can not find that DLP script in DigSILENT. Try with other software MATLAB

Thanks