ARC chute assembly for circuit breaker

Details ARC chute assembly for circuit breaker ARC chute assembly for circuit breaker

1997-12-30

1999-04-27

Donovan, Lincoln

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Arc chute assembly

218 15, 218 81, 218156, 335201, H01H 3302, H01H 930

Patent

active

058981527

ABSTRACT:
An arc chute assembly for a circuit breaker includes a plurality of U-type grids respectively including an engagement protrusion extended from each side thereof, the engagement protrusion having a key pin opening formed therethrough, a plurality of side walls respectively including a plurality of engagement slots formed therethrough, and a key pin inserted through corresponding ones of the key pin openings formed through the engagement protrusions which are inserted through the side walls and extended to an extent from an outer surface of each of the side walls. The apparatus employs the key pin for fixing the grids to the side walls, thereby facilitating assembly steps as well as decreasing an assembly time thereof.

REFERENCES:
patent: 4107497 (1978-08-01), Jencks et al.
patent: 4446347 (1984-05-01), Eguchi et al.
patent: 5247142 (1993-09-01), Yonkovitz et al.
patent: 5539365 (1996-07-01), Lepretre et al.

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