Hydraulic drive for a high-voltage switchgear

Details Hydraulic drive for a high-voltage switchgear Hydraulic drive for a high-voltage switchgear

1988-03-28

1989-07-18

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

200 82B, 200148B, H01H 3518, H01H 3538, H01H 3382

Patent

active

048496502

ABSTRACT:
A high-voltage switchgear having a fixed and a moving contact member includes a hydraulic drive for operation of the moving contact member having a piston and cylinder configuration with a piston coupled to the moving contact member. A fluid reservoir configuration supplies fluid under pressure to the piston for driving the piston. A compressor unit at ground potential charges the fluid reservoir configuration. Electrically-insulating, pressure-resistant lines respectively connect the compressor unit with the piston and cylinder configuration and with the fluid reservoir configuration. The piston and cylinder configuration and the fluid reservoir configuration are disposed spatially close to and at the same electrical potential as the moving contact member.

REFERENCES:
patent: 2783338 (1957-02-01), Beatty
patent: 3075060 (1963-01-01), Strom
patent: 3110783 (1963-11-01), Strom et al.
patent: 3646292 (1972-02-01), Barkan et al.
patent: 3823286 (1974-07-01), Thurk et al.
patent: 3885113 (1975-05-01), Barkan et al.
patent: 4009358 (1976-02-01), Gratzmuller
patent: 4413166 (1983-11-01), Meyer

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