Oleopneumatic control system for electric circuit- breakers

Details Oleopneumatic control system for electric circuit- breakers Oleopneumatic control system for electric circuit- breakers

H - Electricity

01

H

306/208

H01H 33/34 (2006.01)

Patent

CA 1247175

AN OLEOPNEUMATIC CONTROL SYSTEM FOR ELECTRIC CIRCUIT-BREAKERS Abstract of the Disclosure The times of response of a circuit-breaker control system to breaker-closing orders are reduced by means of a unit comprising a pressure reducer and a low- capacity compensating hydraulic accumulator, the unit being connected to the portions of the hydraulic control circuit which are alternately pressurized and depressurized. The hydraulic accumulator resupplies oil at reduced pressure to the portions of circuit in which there is a lack of oil or which are filled with emulsified oil as a result of depressurization operations.

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