Current limiting circuit breaker system

H - Electricity – 01 – H

Patent

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348/1, 348/14

H01H 77/02 (2006.01) H01H 71/10 (2006.01) H01H 71/02 (2006.01)

Patent

CA 1049644

CURRENT LIMITING CIRCUIT BREAKER SYSTEM ABSTRACT OF THE DISCLOSURE Circuit-breaker system having a response time to short- circuits of less than four milliseconds have multiple coordinated pole units wired in series in each phase. The system is able to clear a fault where the available current is high, for example 100,000 amperes at 240 volts AC although each pole unit may be of conventional construction having a current-interruption rating of only 5 or 10 thousand amperes. The operation exhibits current- limiting properties, and the interruption process leaves the pole units remarkably free of arc damage.

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