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., Boston, MA (United States)
• 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

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