Earthing switch for gas-insulated switchgear apparatus

Details Earthing switch for gas-insulated switchgear apparatus Earthing switch for gas-insulated switchgear apparatus

1985-01-16

1986-03-18

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200144R, 361341, H01H 3304, H02B 120

Patent

active

045770751

ABSTRACT:
An earthing switch for gas-insulated switchgear apparatus is disclosed, in which conductor within an enclosure is provided with a stationary contact, and a moving contact is movably provided to connect with and disconnect from the stationary contact by an operating mechanism within an operating mechanism case which is mounted on a branch tube of the enclosure interposing an insulating plate therebetween. For connecting the moving contact to the enclosure electrically, a plurality of earthing bars are employed, and further, directions of electromagnetic forces generated between the moving contact and individual earthing bars are considered in the connection of the earthing bars. By virtue of the connection of the plurality of earthing bars, the influence of the electromagnetic forces acting on the moving contact can be reduced to a great extent.

REFERENCES:
patent: 3778574 (1973-12-01), Clark
patent: 4347414 (1982-08-01), Headley et al.
patent: 4354220 (1982-10-01), Oishi et al.

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