Title :
High-Speed Magnetic Air Circuit Breaker for Distribution Circuits
Author :
Sleeper, H.P. ; Findley, J.D
Abstract :
Field tests indicate that very fast clearing of faults on 4-kv open-wire distribution circuits will materially reduce wire burndowns and consequently improve the service interruption record. Heretofore, the fastest air circuit breakers available for this service, exclusive of compressed-air breakers, have interrupting times of 3¿ to 5¿ cycles. A magnetic-type air breaker with 1¿ to 2 cycles interrupting time is now available; see Fig. 1. These interrupting times approach those of line reclosers which have proved extremely satisfactory in preventing burndown of overhead distribution conductors.
Keywords :
Automatic testing; Circuit breakers; Circuit faults; Circuit testing; Conductors; Magnetic circuits; Protective relaying; Relays; System testing; Timing;
Journal_Title :
Power Apparatus and Systems, Part III. Transactions of the American Institute of Electrical Engineers
DOI :
10.1109/AIEEPAS.1959.4500509
