Distribution transformer secondary fault current calculations

[rotee]

Could somebody recommend good literature for transformer fault current calculations.(best with examples)
I am looking for:
- instructions how to calculate secondary fault currents on single phase distribution transformers, connected to 3-phase grid, using symmetrical components theory. (all available data is in % and per 100MVA base)

-instructions how to calculate secondary fault currents of 3-phase transformer (consisting of 3 single phase transformers) using symmetrical components theory. (all available data is in % and per 100MVA base)

I know how to do simple 3-phase TR, but with different configurations it gets little complicated.
Thanks

 

[davidbeach]

See faq238-1287 and look for Conrad St. Pierre's book.