ETAP Short Circuit Analysis

[PoliPoliCarps]

can anyone please help analyze this problem?

Thank you

 

[mparenteau]

It looks to me as if your framis valve is open.

Mike

 

[PoliPoliCarps]

hello Mike,
Can you explain further what you mean

 

[dpc]

Your question is much too open-ended. You haven't even explained the "problem".

 

[PoliPoliCarps]

Hello.oh yeah my apologies.
If you are using etap as well.
This I show on my photo
You can see that some red already in critical and in magenta color are in marginal.

I'd like to ask about what we can do to make then braking, making and thermal energy reports that its in critical and marginal, do I really need to increase size of the Icm?
When buying and selecting the circuit breakers do i need to consider this Icm or just the Icu and Ics.
I worry due to calculation shown that the making kA is very high and exceeds device capability...

Thanks

 

[LionelHutz]

Asking how to properly design a power system is too broad a question to be answered.

In general, if the fault currents on the power system are over the breaker ratings then you either increase the breaker ratings or do something to lower the system capability.

 

[prdpks2000]

request you to share the etap file so that alert can be analyzed .