Circuit breaker operating device

专利名称：Circuit breaker operating device发明人：HIRASAWA; KUNIO申请号：US48272874申请日：19740624公开号：US3893374A公开日：19750708

摘要：A circuit breaker operating device in which means including a cylinder having apiston connected to the movable contact in the breaking mechanism, a fluid introducingvalve for supplying an operating fluid into a main introducing space beneath the piston,and elements for controlling the movement of the fluid introducing valve are disposedwithin a storage tank containing the operating fluid to eliminate the need for provision ofany fluid supply pipe and reduce the pressure loss to a minimum so that the pressure ofthe operating fluid can be fully effectively utilized for breaking the circuit at a high speed.

申请人：HITACHI, LTD.

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