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VACUUM-TYPE CIRCUIT BREAKER WITH IMPROVED ABILITY TO INTERRUPT CAPACITANCE CURRENTS
VACUUM-TYPE CIRCUIT BREAKER WITH IMPROVED ABILITY TO INTERRUPT CAPACITANCE CURRENTS
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机译:能够中断电容电流的增强型真空断路器
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摘要
A multi-break vacuum circuit breaker comprises a plurality of vacuum-type circuit interrupters electrically connected in series. Closing of the circuit breaker is controlled in such a manner that any prestriking that occurs during closing consistently occurs across the contacts of a preselected one or two of the interrupters and not across the contacts of the remaining interrupters, which constitute a majority of the total number of interrupters. This maintains the contacts of the remaining interrupters in good condition for a subsequent opening operation, thereby improving the ability of the circuit breaker to interrupt capacitance currents on such an opening operation.
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