what kind of fault can use the MVA method? can you use MVA method for three phase short?

[yaoyaodes]

what kind of fault can use the MVA method? can you use MVA method for three phase short?

 

[Zach Stone P.E.]

The MVA method is for three-phase bolted (zero impedance) faults only. It's most commonly used to evaluate the worst-case short circuit current for equipment short circuit current ratings (SCCR).