As you know, in Protection system we usually use close and Trip relay between Main relay (as commander) and circuit breaker.
These relays must have to main features, Heavy duty and high speed.
The main use of these relays is that, when main relays (for example Distance relay) sends trip to CB...
I want to do reliability analyze on different single line diagrams with different interlocking.
In this regards, i choose Digsilent software for this purpose. But i have a problem to simulate and perform interlocking in this software. it seems there is no option for that. Any body knows how i...
I am Ms Electrical engineering and work on protection and automation of HV substation in consultant co, for about 3 years.
i am looking for comprehensive and high quality training course about Protection,control and DCS system of substation (max duration : one month).
Whereas, the most EQs in...
In substation we usually consider 400v AC for internal feeding of S/S.
consultants suggest us to use ACB (Air circuit Breacker) for incoming feeder and MCCB (molded case circuit breaker ) for outgoing feeder.
Does anybody know why?
why we dont use mccb for incoming?
(if it is needed i can...
In protection system we usually consider CBF protection for each circuit breacker. If CBF operates in one CB ,it sends trip to all other adjacent CBs.
The question is whether the CBF function in other adjacent CBs which received this trip must be activated or not? why?
Do you have any...
