Abstract :
W. F. Skeats (General Electric Company, Philadelphia, Pa.): The first field requirement for high-voltage three-cycle breakers appeared about ten years ago, and low-oil-content breakers of the impulse type were placed in service on the 287-kv Boulder Dam-Los Angeles line in 1936 and have been in successful operation ever since. On the basis of this successful experience it is natural to think of extending the development to lower-voltage breakers and of increasing the breadth of its application by adapting it to dead-tank breakers.
