MODULAR OPERATING MECHANISM OF LOAD SWITCH Russian patent published in 1999 - IPC

FIELD: high-voltage electrical equipment. SUBSTANCE: operating mechanism has ground-blade manual control gear in the form of set of springs reset by means of resetting handle and resting on reset lever that revolves over circle arc and is thrown over into two extreme positions during ON- and OFF-operation through dead center corresponding to spring reset condition; interlocking member made in the form of spring-loaded lever for locking ground-blade control gear in OFF-position with main blades in ON-position as well as with springs reset for ON- or OFF-operation while performing function of unlocking mentioned control gear when main blades are disconnected by pushing spring-loaded lever with aid of mentioned reset lever at the end of disconnection motion. EFFECT: improved design. 2 cl, 1 dwg