1964•IEEE Transactions on Power Apparatus and SystemsRequires access

Switching of Extra-High-Voltage Circuits I-System Requirements for Circuit Breakers

I. B. Johnson, V. E. Phillips, H. O. Simmons

Abstract

The dynamic growth of utility systems has resulted in demands for power circuit breakers with faster interrupting times as well as higher interrupting capacities and continuous-current loadings. The rapid speed at which 500-kv system plans have developed and the current, interrupting megavrolt-ampere (mva), and insulation requirements which these systems have imposed on the circuit breaker designer are particularly significant.

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Key concepts: Circuit breaker, Prospective short circuit current, Distribution board, Electrical engineering, Sulfur hexafluoride circuit breaker, Disconnector, Fuse (electrical), Transient recovery voltage