Circuit breaker and circuit breaking apparatus

Details Circuit breaker and circuit breaking apparatus Circuit breaker and circuit breaking apparatus

H - Electricity

01

H

H01H 83/02 (2006.01) H01H 9/54 (2006.01) H01H 33/14 (2006.01) H03K 17/725 (2006.01)

Patent

CA 2166225

A circuit breaker for a distribution system includes a non-self-extinction type semiconductor switch, a current limiting element connected in series to the semiconductor switch for suppressing a fault current. The semicondutor switch and the current limiting element constitute a series circuit. A mechanical type high-speed switch is connected in parallel to the series circuit of the semiconductor switch and the current limiting element. Upon occurrence of a fault in the distribution system, an electric current flowing through the distribution system is commutated to the series circuit from the mechanical type high-speed switch.

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