High-voltage electric circuit breaker comprising...

Details High-voltage electric circuit breaker comprising... High-voltage electric circuit breaker comprising...

H - Electricity

01

H

348/1, 306/215

H01H 33/66 (2006.01) H01H 33/14 (2006.01) H01H 33/666 (2006.01)

Patent

CA 1059605

ABSTRACT OF THE DISCLOSURE This high voltage circuit breaker comprises a vacuum type interrupter and a fluid-blast type interrupter elec- trically connected in series and arranged to be opened substantially simultaneously so that concurrent arcing occurs in the two interrupters until about the time a natural current zero is reached. The vacuum interrupter is relied upon the withstand the usual recovery voltage during the initial period after arcing and the fluid-blast interrupter to withstand the recovery voltage after this initial period. Immediately after the circuit has been interrupted by this coaction of the two interrupters, the vacuum interrupter is closed while the fluid blast inter- rupter remains open, thus relieving the vacuum interrupter of continuing voltage appearing across the circuit breaker.

247804

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