Electricity: circuit makers and breakers – Fluid pressure – Piston
Patent
1981-11-23
1983-06-07
Tolin, G. P.
Electricity: circuit makers and breakers
Fluid pressure
Piston
200 34, H01H 3538
Patent
active
043872808
ABSTRACT:
This hydraulically-actuated operating system comprises a cylinder, a piston movable therein in an opening direction to open a circuit breaker, and an accumulator for supplying pressurized liquid to a breaker-opening piston-actuating space within the cylinder. A normally-closed valve between the accumulator and the actuating space is openable to allow pressurized liquid from the accumulator to flow through the valve into the actuating space to drive the piston in an opening direction. A dashpotting mechanism operating separately from the hydraulic actuating system is provided, thereby reducing flow restriction interference with breaker opening.
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Bruzga Charles E.
Davis Jr. James C.
General Electric Company
Snyder Marvin
Tolin G. P.
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