Generator Assumptions

[sdezarra]

Hello, I need help modeling a generator, particularly in SKM. All I know is that the generator is 156kVA. What are valid assumptions to make to construct a decrement curve e.g. Xd" values to assume?

Thanks

 

[steve66]

I have a Caterpillar application guide that says Cat generators typically produce 8 times rated current into a 3 phase fault.

That would make x"d approx. = 0.125