Abstract :
M. H. Hobbs (Westinghouse Electric and Manufacturing Company, East Pittsburgh, Pa.): Messrs. Ludwig and Nau´s paper on the magnetic De-ion breaker presents the most recent chapter in the contribution of the De-ion air circuit breaker principle to the art of circuit interruption. Its 150,000-kva rating at 2,500–5,000 volts covers a number of industrial, distribution, and station-auxiliary circuit applications.
