RECIPROCATING CIRCUIT BREAKER Russian patent published in 1999 - IPC

FIELD: high-voltage electrical engineering. SUBSTANCE: input terminal is equipped with shelves which height is perpendicular to plane of input terminal movement. Size of shelves conforms to condition A<S, H>0.25S, where A and H are, respectively, width and height of shelves, S is normal height of surface icing. EFFECT: increased efficiency of device operations, increased reliability due to decreased shock impact on insulators and other members in surface icing environment, increased efficiency of cooling contact surfaces in course of running load current. 4 cl, 3 dwg