Medium voltage circuit breaker with reduced operating energy

Details Medium voltage circuit breaker with reduced operating energy Medium voltage circuit breaker with reduced operating energy

H - Electricity

01

H

H01H 73/04 (2006.01) H01H 1/12 (2006.01) H01H 33/12 (2006.01)

Patent

CA 2069690

ABSTRACT MEDIUM VOLTAGE CIRCUIT BREAKER WITH REDUCED OPERATING ENERGY The main contacts (14,15) of a gas-insulated medium voltage circuit breaker are shunted by arcing contacts (18,19) abutting in the closed position. The arcing contacts (18,19) are operated by a toggle mechanism (23,25) comprising a precompressed contact pressure spring. The closed position of the arcing contacts corresponds appreciably to the dead point of the operating toggle and the arcing contacts are slightly reopened when the circuit breaker is fully closed. Refer to figure 1.

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