ideality of the circuit breakers
There is one more query about circuit breakers in the master library. I dont find the circuit breakers to be ideal breakers, because when I choose single pole operation of the 3 phase breaker, and enter sufficient delay in opening operation of the 3 poles of the breaker, say 1st pole at 300ms 2nd pole at 350ms and 3rd pole at 400ms, an ideal breaker should open at the predetermined time but it does not happen like that in my case.The instruction says when single pole operation is enabled, the poles of the 3-phase breaker operates independently to each other.
I would like to know if anyone face the same problem with the circuit breakers??
I have attached the snapshots of a 3-phase breaker for determining the transient recovery voltage in the breaker.
This is the output that I get when the single pole operation is enabled and the 3 poles of the breaker is controlled independently for the above mentioned timings.
Can you please help me here, regarding the strange behaviour of the breaker
Status:
Open Oct 10, 2014 - 06:50 AM
3-phase circuit breakers
2answers
Voted Best Answer
Oct 17, 2014 - 09:18 AM
The current through the breaker (absolute value) has to be less than the current chopping limit specified. Once the open signal is received it will wait until current chopping limit is reached.
Answer
Jun 15, 2021 - 07:50 PM
it depends how you model your CB, send your model to martbenjy@gmail.com.
Source: may
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