Load break switch arc suppression

Details Load break switch arc suppression Load break switch arc suppression

1978-12-18

1981-09-15

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200 62, H01H 3312, H01H 938

Patent

active

042899419

ABSTRACT:
The invention relates to an improved load break switch having auxiliary contact members for making contact while the main contact members separate. When the moveable auxiliary contact member, i.e. flipper blade, opens, an arc is drawn causing deformation of the auxiliary stationary contact member. This can prevent proper operation, e.g. latching of the moveable contact member. Arc supporting means, connected in a low impedance circuit to the stationary contact are secured adjacent to the stationary member and intermediate the latter and the open position of the moveable member along the opening path of the latter. The arc is thus rapidly transferred from the stationary contact to minimize contact deformation.

REFERENCES:
patent: 2226385 (1940-12-01), Ramsey
patent: 2308026 (1943-01-01), Rawlins
patent: 2337889 (1943-12-01), Harlow et al.
patent: 2840671 (1958-06-01), Gieffers
patent: 3243538 (1966-03-01), Rodeseike
patent: 3549840 (1970-12-01), Harner
patent: 3681548 (1972-08-01), Erickson

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