Circuit breaker with grid support mounted over stationary contac

Details Circuit breaker with grid support mounted over stationary contac Circuit breaker with grid support mounted over stationary contac

1996-06-17

1998-11-10

Gellner, Michael L.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Magnetic blowout

218 37, 218150, H01H 3318, H01H 3302

Patent

active

058347240

ABSTRACT:
In a circuit breaker, a grid support (12) having a pair of side walls (12a) which are confronted with each other, is provided by molding resin, and arc-extinction grids (6) are inserted into grooves formed in the side walls (12a). The grid support is fixedly mounted on the stationary contactor (1) by fitting legs (12c) protruded from the bottom surfaces of the side walls (12a) into a U-shaped hole (9) formed in the stationary contactor (1) which defines outside current paths (1a) and an inside current path (1b). The upper surfaces of the outside current paths (1a) are covered with the side walls (12a), respectively, and the upper surface of the inside current path (1b) except for a stationary contact (3) is covered with the cover plate (12b) through which the side walls (12a) are connected to each other.

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