High voltage load interrupter with safety system

Details High voltage load interrupter with safety system High voltage load interrupter with safety system

1994-03-30

1996-01-09

Scott, J. R.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Interposed non-conductor

218 92, 218100, 218118, H01H 3342, H01H 3353, H01H 3366, H01H 3368

Patent

active

054830320

ABSTRACT:
A high voltage load interrupter including an oil switch and a vacuum switch, an oil switch operating handle for manual operation of the oil switch, and a vacuum switch operating handle for manual operation of the vacuum switch, in which the oil switch operating handle and the vacuum switch operating handle are so located with respect to each other that the oil switch operating handle cannot be moved to its "switch open" position unless the vacuum switch operating handle is in its "switch open" position and the vacuum switch operating handle cannot be moved to its "switch closed" position unless the oil switch operating handle is in its "switch closed" position.

REFERENCES:
patent: 3571543 (1971-03-01), Perkins et al.
patent: 3814882 (1974-06-01), Harrold
patent: 4087664 (1978-05-01), Weston
patent: 4105878 (1978-08-01), Date et al.
patent: 4283610 (1981-08-01), Date et al.
patent: 4434332 (1984-02-01), Yanabu et al.
patent: 4458119 (1984-07-01), Hashimoto et al.
patent: 4814559 (1989-03-01), Stegmuller
patent: 4972055 (1990-11-01), Perulfi et al.

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