Thank you for your answers.
I have the following comments on your contributions:
@che12345
Regarding your hypothesis:
the Ith concept is to determine the offset into a steady r.m.s. equivalent.
Now according to IEC 60909 the Ith through this equation ith=Ik "sqrt(m+n) shows that the influence...
I have a terrible confusion between the following currents:
-Ith as mentionned in IEC 60909-0:thermal equivalent short-circuit current ,the rms value of a current having the same thermal effect and the same duration as the actual short-circuit current, which may contain a DC component and may...
Thank you for your answers
@che12345
Ok I understand that you are basing yourself on the IEC 60694 standard (replaced by IEC 62271-1:Common specifications for alternating current switchgear and controlgear )
Do you have a data sheet that specifies the percentage of asymmetrical component that a...
In the event of a short circuit, the circuit breaker shall be capable of breaking all short circuit currents such that:
- the periodic component is less than or equal to the rated value
- the percentage of the aperiodic component is less than or equal to the rated value
My question is: why is...
