CN1505080A - Hydraulically driven high voltage large current arc extinction switch - Google Patents
Hydraulically driven high voltage large current arc extinction switch Download PDFInfo
- Publication number
- CN1505080A CN1505080A CNA021510040A CN02151004A CN1505080A CN 1505080 A CN1505080 A CN 1505080A CN A021510040 A CNA021510040 A CN A021510040A CN 02151004 A CN02151004 A CN 02151004A CN 1505080 A CN1505080 A CN 1505080A
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- China
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- electromagnet
- switch
- hydraulic
- steel ball
- valve
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Abstract
The invention is a hydraulic-drive, high-pressure, heavy-current, arc exting- uishing switch, relating to a hydraulic operating mechanism of power switch device. It is mainly applied to switch-off operation of dynamic and static contactors of main circuit of breaker in combined electric apparatus. Two sets of mechanical components such as drive rod, valve rod, steel ball and spring, are set on and under switch-off electromagnet, respectively, the valve body immersed in oil box has two three-way oil paths, wherein a steel ball is set in the upper three-way oil path. When one switch-off component is damaged or does not work smoothly, it starts using the other one, which effectively prevents dangerous accident form occurring.
Description
Technical field
The present invention relates to a kind of power switchgear hydraulic actuating mechanism, especially a kind of hydraulic-driven high-voltage great-current arc-suppressing switch.
Background technology
Existing hydraulic actuating mechanism includes only a separating brake electromagnetically operated valve mostly, i.e. electromagnet, a cover mechanical organ, a threeway oil circuit.In case wherein some component wear or bite are malfunctioning, the separating brake action can not realize, thereby lead to major accident.In order to eliminate this danger, the domestic sulfur hexafluoride breaker that has has been installed two solenoids on an iron core, control one cover mechanical organ.In case solenoid or fuse damage, another solenoid can replace; But so still can not solve other executive component damages or malfunctioning problem.
Summary of the invention
Technical problem to be solved by this invention provides a kind of hydraulic-driven high-voltage great-current arc-suppressing switch, to improve the security reliability of breaker open operation.
The technical solution adopted for the present invention to solve the technical problems is: hydraulic-driven high-voltage great-current arc-suppressing switch is made up of separating brake and making electromagnet and following mechanical organ and one-level hydraulic valve thereof, it has two tripping electromagnets and one to close the palace gate electromagnet, drive link, needle, steel ball and a spring are all arranged below each electromagnet, a shared hydraulic valve, valve inner has two threeway oil circuits, wherein going up between the valve port of threeway oil circuit has a movable steel ball, and three valve ports of following threeway oil circuit are respectively facing to an above-mentioned steel ball.This device is one road separating brake component wear or malfunctioning and can not open the valve port of being sealed by steel ball therein, in the time of promptly can not carrying out sub-switching operation, can automatically or by external conversion switch artificially enable when doing by outside line design, can automatically or by external conversion switch artificially enable another road separating brake element action by the outside line design.
The invention has the beneficial effects as follows: can prevent because of one road separating brake component wear or the malfunctioning accident generation that can not carry out sub-switching operation of bite.But said here one road separating brake component wear or malfunctioning damage or the malfunctioning situation that this place's valve port can not be closed that do not comprise, certain this fault in fact unlikely takes place.
Description of drawings
Fig. 1 is the switching-off device structure chart of prior art.
Fig. 2 is the structure chart of hydraulic-driven high-voltage great-current arc-suppressing switch of the present invention.
Among the figure: 1 is tripping electromagnet, and 2 is tripping electromagnet, and 3 is making electromagnet, and 4 is drive link, and 5 is needle, and 6 is steel ball, and 7 is spring, and B is a valve body, and 9 is fuel tank, and 10 is the steel ball of last threeway oil circuit, and 11 is the separating brake joint.
Embodiment
As shown in the figure, when sub-gate signal is flowed through tripping electromagnet 1, then attract armature wherein that drive link 4 and needle 5 are moved down, promote steel ball 6 simultaneously and spring 7 moves down, open the valve port A and the sealing that are dipped in valve body 8 threeway oil circuits in the fuel tank 9 and go up valve port B, hydraulic oil flows to the working cylinder piston that the 2-level hydraulic valve removes to promote 2-level hydraulic valve valve rod and next stage, finishes sub-switching operation.G among the figure, H, I, J, K are respectively and lead to secondary valve valve rod upper oil cavitie, secondary valve valve rod lower oil cavitie, secondary valve and working cylinder connection chamber, oil pump, oil sump.When one road separating brake component wear or bite are malfunctioning, another road separating brake element just begins action: open down the valve port C of threeway oil circuit and close and close valve port D, make hydraulic oil enter valve port C and last threeway oil circuit valve port F, promote steel ball 10 and block the valve port E of threeway oil circuit, hydraulic oil enters separating brake joint 11 simultaneously, flow to the 2-level hydraulic valve, remove to promote the working cylinder piston of this valve valve rod and next stage, finish sub-switching operation.The material object that valve body and internal oil passages thereof are actually this enforcement side along each bar oil circuit axial analyse and observe the expansion connection layout.The front of valve body material object and overlook and be the T font, tripping electromagnet 1 and following mechanical organ, making electromagnet 3 and following mechanical organ, tripping electromagnet 2 and following mechanical organ thereof thereof thereof lay respectively at overlook T shape go up a left side, go up right and down in the position.
Claims (2)
1. hydraulic-driven high-voltage great-current arc-suppressing switch, mill and following mechanical organ and one-level hydraulic valve formed by separating brake and combined floodgate electromagnetism, it is characterized in that: two tripping electromagnets and a making electromagnet are arranged, tripping electromagnet (1), respectively there is a drive link (4) tripping electromagnet (2) and making electromagnet (3) following, needle (5), steel ball (6) and spring (7), a shared hydraulic valve (8), there are two threeway oil circuits its inside, wherein going up has a movable steel ball (10) in the threeway oil circuit, three valve port places of following threeway oil circuit are respectively facing to an above-mentioned steel ball (6).
2. hydraulic-driven high-voltage great-current arc-suppressing switch according to claim 1 is characterized in that: tripping electromagnet (1) and following mechanical organ, making electromagnet (3) and following mechanical organ, tripping electromagnet (2) and following mechanical organ thereof thereof thereof lay respectively at overlook T shape go up a left side, go up right and down in the position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021510040A CN1505080A (en) | 2002-12-03 | 2002-12-03 | Hydraulically driven high voltage large current arc extinction switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021510040A CN1505080A (en) | 2002-12-03 | 2002-12-03 | Hydraulically driven high voltage large current arc extinction switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1505080A true CN1505080A (en) | 2004-06-16 |
Family
ID=34234207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021510040A Pending CN1505080A (en) | 2002-12-03 | 2002-12-03 | Hydraulically driven high voltage large current arc extinction switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1505080A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101740274A (en) * | 2008-11-21 | 2010-06-16 | 施耐德电器工业公司 | Switchgear device and installation with photovoltaic cells equipped with such a device |
| CN104465245A (en) * | 2014-12-24 | 2015-03-25 | 丹东金桥车辆配件有限公司 | Hydraulic electromagnetic reversing mechanism for high-voltage circuit breaker hydraulic spring operation device |
-
2002
- 2002-12-03 CN CNA021510040A patent/CN1505080A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101740274A (en) * | 2008-11-21 | 2010-06-16 | 施耐德电器工业公司 | Switchgear device and installation with photovoltaic cells equipped with such a device |
| CN101740274B (en) * | 2008-11-21 | 2014-06-25 | 施耐德电器工业公司 | Switchgear device and installation with photovoltaic cells equipped with such a device |
| CN104465245A (en) * | 2014-12-24 | 2015-03-25 | 丹东金桥车辆配件有限公司 | Hydraulic electromagnetic reversing mechanism for high-voltage circuit breaker hydraulic spring operation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |