JPH0368334U - - Google Patents

Info

Publication number
JPH0368334U
JPH0368334U JP12933289U JP12933289U JPH0368334U JP H0368334 U JPH0368334 U JP H0368334U JP 12933289 U JP12933289 U JP 12933289U JP 12933289 U JP12933289 U JP 12933289U JP H0368334 U JPH0368334 U JP H0368334U
Authority
JP
Japan
Prior art keywords
pressure
low
oil
oil pump
pressure system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP12933289U
Other languages
Japanese (ja)
Other versions
JPH0713149Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP12933289U priority Critical patent/JPH0713149Y2/en
Publication of JPH0368334U publication Critical patent/JPH0368334U/ja
Application granted granted Critical
Publication of JPH0713149Y2 publication Critical patent/JPH0713149Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の遮断器用油圧操作装置の一実
施例を示す油圧系統図、第２図は本考案で使用す
る止め弁を示す断面図、第３図は本考案の他の実
施例を示す系統図である。 １……高圧系、２……低圧系、３……低圧タン
ク、４……油ポンプ、５……ガス封入型アキユム
レータ、６……制御弁、７……油圧シリンダ、８
……油圧ピストン、９……圧力スイツチ、１０…
…リーク弁、１１……止め弁、１２……バネ、１
３……シール弁、１４……電気式止め弁、１５…
…圧力スイツチ、２０……リリーフ弁。 Fig. 1 is a hydraulic system diagram showing one embodiment of the hydraulic operating device for circuit breakers of the present invention, Fig. 2 is a sectional view showing a stop valve used in the present invention, and Fig. 3 is a diagram showing another embodiment of the present invention. FIG. 1...High pressure system, 2...Low pressure system, 3...Low pressure tank, 4...Oil pump, 5...Gas-filled accumulator, 6...Control valve, 7...Hydraulic cylinder, 8
...Hydraulic piston, 9...Pressure switch, 10...
...Leak valve, 11...Stop valve, 12...Spring, 1
3...Seal valve, 14...Electric stop valve, 15...
...Pressure switch, 20...Relief valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ガス封入型アキユムレータに油ポンプで蓄圧し
てその高圧油で遮断器の開閉動作を行なう高圧系
と、低圧タンクに停溜する低圧油を必要に応じて
油ポンプで昇圧して前記高圧系に発送する低圧系
と、この低圧系と前記高圧系との間に設けられ高
圧系から常時油が低圧系に漏れるようにしたリー
ク弁と、さらに前記リーク弁に直列に設けた止め
弁とを具備し、前記高圧系側の油圧を圧力スイツ
チで検出して第１の低位設定圧力で前記油ポンプ
を駆動し、第１の低位設定圧力より高い第２の高
位設定圧力で油ポンプを停止させ、さらに油ポン
プの故障、停電等により不慮の機能停止持の圧力
低下を感知し又は予想したときに前記止め弁を閉
止するように構成したことを特徴とする遮断器用
油圧操作装置。 There is a high-pressure system that stores pressure in a gas-filled accumulator with an oil pump and uses the high-pressure oil to open and close circuit breakers, and low-pressure oil that is stored in a low-pressure tank is pressurized as necessary with an oil pump and sent to the high-pressure system. A leak valve provided between the low pressure system and the high pressure system so that oil constantly leaks from the high pressure system to the low pressure system, and a stop valve provided in series with the leak valve. , detecting the oil pressure on the high pressure system side with a pressure switch, driving the oil pump at a first low set pressure, stopping the oil pump at a second high set pressure higher than the first low set pressure, and further A hydraulic operating device for a circuit breaker, characterized in that the stop valve is configured to close when a pressure drop due to an unexpected failure of an oil pump or a power outage is detected or predicted.
JP12933289U 1989-11-07 1989-11-07 Hydraulic operating device for circuit breaker Expired - Fee Related JPH0713149Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12933289U JPH0713149Y2 (en) 1989-11-07 1989-11-07 Hydraulic operating device for circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12933289U JPH0713149Y2 (en) 1989-11-07 1989-11-07 Hydraulic operating device for circuit breaker

Publications (2)

Publication Number Publication Date
JPH0368334U true JPH0368334U (en) 1991-07-04
JPH0713149Y2 JPH0713149Y2 (en) 1995-03-29

Family

ID=31676968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12933289U Expired - Fee Related JPH0713149Y2 (en) 1989-11-07 1989-11-07 Hydraulic operating device for circuit breaker

Country Status (1)

Country Link
JP (1) JPH0713149Y2 (en)

Also Published As

Publication number Publication date
JPH0713149Y2 (en) 1995-03-29

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees