A New Three-Million-Kva Short-Circuit Generator

The requirement to provide 3,000,000-kva additional short-circuit capacity for a new circuit breaker laboratory was met by constructing a 3,600-rpm generator with very low reactance. This paper describes the general philosophy of designing for low reactance (leading to the two-pole design), and the various electrical and mechanical features of the generator. This machine is believed to be the highest capacity 3,600-rpm short-circuit generator in existence.