Development of the 230-Kv Ring Bus for Grand Coulee Power Plant

Verifying circuit-breaker interrupting capacity

“…A. W, Darland it with the Bureau of Reclamation, Couke Dam, Wath., W. H. Oagatt «with the Bureau of Reclamation, Denver, Colo., and W. AC. Load· is with the Westingbouse Electric Corporation, Eait Pittsburgh, Pa.kva 3-cycle circuit breaker tested at Grand Coulee Dam have been described previously before the Institute 1. The dead-tank construction not only provides inherent mechanical strength but also is adapted for the use of conventional through-type current transformers surrounding the lead-in bushings.…”