High speed hydraulically-actuated operating system for an electric circuit breaker

Patent · Tue Jun 07 00:00:00 EDT 1983

OSTI ID:864573

Iman, Imdad ^[1]

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1. Colonie, NY

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.

• Research Organization: General Electric Co
• DOE Contract Number: AC01-76ET29054; EX-76-C-01-2065
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 4387280
• Application Number: 06/323,849
• OSTI ID: 864573
• Country of Publication: United States
• Language: English

Related Subjects

/200/
accumulator
actuating
allow
allow pressurized
breaker
breaker-opening
circuit
circuit breaker
closed valve
comprises
cylinder
dashpotting
direction
drive
electric
electric circuit
flow
flow restriction
hydraulic
hydraulically-actuated
hydraulically-actuated operating
interference
liquid
mechanism
movable
movable therein
normally-closed
normally-closed valve
openable
operating
piston
piston movable
piston-actuating
pressurized
pressurized liquid
provided
reducing
restriction
separately
space
speed
supplying
supplying pressurized
therein
valve