Title :
High-voltage line-dropping switching stresses
Author_Institution :
Sch. of Electr. Eng., Sydney Univ., NSW, Australia
fDate :
1/1/1992 12:00:00 AM
Abstract :
Results are given of SF6 circuit-breaker restrike waveforms during no-load, live-line switching operations on a 362 kV network, together with laboratory tests of the early dielectric recovery of the circuit breaker. It is shown that the tendency to restrike is assisted by the excellent interrupting ability of the breaker when the initial transient recovery voltage rises at the very slow rate typical of `stiff´ networks
Keywords :
circuit breakers; restriking voltage; sulphur compounds; transients; 362 kV; SF6 circuit breakers; dielectric recovery; high voltage; line-dropping switching stresses; live-line switching; no-load switching; restrike waveforms; transient recovery voltage rises;
Journal_Title :
Generation, Transmission and Distribution, IEE Proceedings C
