CN102983038A - High-voltage vacuum circuit breaker with O-shaped electrodynamic force compensation device - Google Patents
High-voltage vacuum circuit breaker with O-shaped electrodynamic force compensation device Download PDFInfo
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- CN102983038A CN102983038A CN2012104912943A CN201210491294A CN102983038A CN 102983038 A CN102983038 A CN 102983038A CN 2012104912943 A CN2012104912943 A CN 2012104912943A CN 201210491294 A CN201210491294 A CN 201210491294A CN 102983038 A CN102983038 A CN 102983038A
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Abstract
The invention discloses a high-voltage vacuum circuit breaker with an O-shaped electrodynamic force compensation device. The high-voltage vacuum circuit breaker is characterized by comprising a three-phase embedded pole, an insulating draw bar, a framework, special permanent magnet mechanisms and an intelligent controller, wherein the embedded pole, the special permanent magnet mechanism and the intelligent controller are fixed on the framework The front end of the insulating draw bar penetrates through a lower conductor in the embedded pole to fix the upper end of the O-shaped electrodynamic force compensation device on a dynamic end of an arc distinguish chamber, and the other end of the insulating draw bar is directly connected with the special permanent magnet mechanisms. The high-voltage vacuum circuit breaker has the advantages of being capable of offsetting electrodynamic repulsion force (holm force) between a moving contact and a fixed contact of the arc distinguish chamber when the moving contact and the fixed contact are closed and current passes, reducing output power of the mechanism, achieving miniaturization, reducing motion links and improving reliability. The three-phase embedded pole is respectively driven by three special permanent magnet mechanisms, and the high-voltage vacuum circuit breaker has the advantages of being small in space occupation, capable of adjusting the space among phases according to requirements, convenient to operate and maintain and the like.
Description
Technical field
What the present invention relates to is a kind of high-pressure vacuum breaker with O font electric power compensation arrangement.In High-voltage AC Network, primary cut-out is indispensable visual plant, is widely used in industrial and mineral, enterprise, power plant and transformer station as the usefulness of the control and protection of electric installation.
Background technology
At present in the high-voltage electrical apparatus technical field; high-pressure vacuum breaker is a kind of three-phase alternating current indoor high-voltage vacuum switchgear; usually as the critical piece in the complete equipment of high voltage switch, be widely used in industrial and mineral, enterprise, power plant and transformer station, as the usefulness of the control and protection of electric installation.The contact pressure of the high-pressure vacuum breaker that occurs on the market now all is to design according to the maximum electrodynamic repulsion force of circuit breaker when the short-circuit condition, causes the power of operating mechanism excessive, and the circuit breaker volume can't miniaturization.Particularly when the rated current operating state, mechanism efficiency is extremely low, and the damage of the damage of the arc control device that excessive contact pressure causes and mechanism self causes the working life of circuit breaker short, poor stability.
Summary of the invention
The present invention proposes a kind of high-pressure vacuum breaker with O font electric power compensation arrangement, its purpose is to overcome defects, adopt O font electric power compensation arrangement, under the rated current operating state, after the contact closure between contact electrodynamic repulsion force can ignore, this moment, the balancing force of O font electric power compensation arrangement was also very little, can ignore, contact pressure is mainly provided by insulated tension pole, under the short circuit current operating state, electrodynamic repulsion force increase between contact after the contact closure, and the balancing force of O font electric power compensation arrangement also increases rapidly along with the increase of electric current, be superimposed upon on the moving contact, and electrodynamic repulsion force is cancelled each other between contact, thereby guarantee dynamic/static contact reliably contact under insulated tension pole pressure, avoid contact De Shao Erosion.
Technical solution of the present invention: it is characterized in that comprising three-phase solid-sealed pole, insulated tension pole, framework, special-purpose permanent magnet mechanism, intelligent controller, wherein three-phase solid-sealed pole, special-purpose permanent magnet mechanism, intelligent controller are fixed on the framework; The lower electric conductor that the front end of described insulated tension pole passes in the pole is fixed on the upper end of O font electric power compensation arrangement on the moved end of arc control device, and the other end of insulated tension pole and special-purpose permanent magnet mechanism 8 are direct-connected.
The invention has the advantages that: when arc control device moving contact and fixed contact closure have electric current to flow through, the upper end of O font electric power compensation arrangement can produce an electromagnetic force that the arc control device moving contact is compressed to fixed contact under electromagnetic field effect, this electromagnetic force increases along with the increase of current flowing, it can balance out the electrodynamic repulsion force (Holm power) that exists between the arc control device dynamic/static contact, the confining force that makes permanent magnet mechanism need to offer the arc control device moving contact reduces, reduce the output work of mechanism, thereby realized the miniaturization of circuit breaker; The moved end of arc control device directly links to each other with special-purpose permanent magnet mechanism through the insulation pull bar, does rectilinear motion, reduces the transmission link of knowing clearly, and has improved reliability; The three-phase solid-sealed pole is driven respectively by three special-purpose permanent magnet mechanisms, and it is little to take up room, and spaced apart can be adjusted as requested, has the standardization level height, the characteristics such as handled easily and maintenance.
Description of drawings
Accompanying drawing 1 is the structural representation with the high-pressure vacuum breaker of O font electric power compensation arrangement.
Accompanying drawing 2 is front views of Fig. 1.
Among the figure 1 is upper electric conductor, the 2nd, vacuum interrupter, the 3rd, pole, the 4th, O font electric power compensation arrangement, the 5th, lower electric conductor, the 6th, insulated tension pole, the 7th, framework, the 8th, special-purpose permanent magnet mechanism, the 9th, intelligent controller.
Embodiment
The contrast accompanying drawing, its structure comprises three-phase solid-sealed pole 3, insulated tension pole 6, framework 7, special-purpose permanent magnet mechanism 8, intelligent controller 9, wherein pole 3, special-purpose permanent magnet mechanism 8, intelligent controller 9 are fixed on the framework 7; 5 upper ends O font electric power compensation arrangement 4 of lower electric conductor that the front end of described insulated tension pole 6 passes in the pole 3 are fixed on the moved end of arc control device 2, and the other end of insulated tension pole 6 and special-purpose permanent magnet mechanism 8 are direct-connected.
Described three-phase solid-sealed pole 3 comprises vacuum interrupter 2 and upper electric conductor 1, lower electric conductor 5, wherein vacuum interrupter 2 and upper electric conductor 1, lower electric conductor 5 usefulness special insulation material-nylon form pole 3 behind the mould rapid curing, the quiet end of vacuum interrupter 2 directly links to each other with upper electric conductor 1, and lower electric conductor 5 directly links to each other with the lower end of O font electric power compensation arrangement 4.The pole body that pole 3 used special insulation material-nylon form after fast-curing process solidifies has the characteristics such as technique is simple, the class of insulation is high, structural strength is good, good looking appearance.
Described pole 3 and special-purpose permanent magnet mechanism 8 are separately fixed at by the spaced apart requirement on the end face of framework 7, and intelligent controller 9 is fixed on the sidewall of framework 7.
One end of described O font electric power compensation arrangement 4 is fixed on the lower electric conductor 5, and the middle part of lower electric conductor 5 has via hole, and insulated tension pole 6 passes this hole the other end of O font electric power compensation arrangement 4 is fixed on the moved end of vacuum interrupter 2.
The moved end of described vacuum interrupter 2 directly links to each other with special-purpose permanent magnet mechanism 8 through insulation pull bar 6.
Described three-phase solid-sealed pole 3 is driven respectively by three special-purpose permanent magnet mechanisms 8, and spaced apart can be adjusted as requested.
The storage that described intelligent controller 9 is circuit breaker motion energy and process the external control order, to the comprehensive unit of permanent magnet mechanism 8 sending action instructions, version is various, is not limited to, and is installed on the inwall of framework 7, decide as required the installation site.
During combined floodgate, send reclosing command by intelligent controller 9, special-purpose permanent magnet mechanism 8 actions, driving insulated tension pole 6 moves upward, the moving contact of vacuum interrupter 2 is pressed to fixed contact, after dynamic/static contact begins contact, there is electric current to flow through between contact, through the moving contact of upper electric conductor 1 to vacuum interrupter 2, fixed contact to O font electric power compensation arrangement 4 to lower electric conductor 5, or through the fixed contact of lower electric conductor 5 to vacuum interrupter 2, moving contact to O font electric power compensation arrangement 4 supreme electric conductors 1 form the loop, can be at the moving contact of vacuum interrupter 2, produce electrodynamic repulsion force between the fixed contact, the while electric current also flows through O font electric power compensation arrangement 4 and generates an electromagnetic field, this device can produce an electromagnetic force that the moving contact of arc control device 2 is compressed to fixed contact under electromagnetic field effect, offset with electrodynamic repulsion force, it doesn't matter for this electromagnetic force and loop current direction, only and the size of current value be directly proportional, therefore special-purpose permanent magnet mechanism 8 can be effectively closed with the moving contact fixed contact of arc control device 2, finish combined floodgate or the pass of circuit breaker and close process, finally remain on closing position.During separating brake, send the separating brake instruction by intelligent controller 9, special-purpose permanent magnet mechanism 8 drives insulated tension pole 6 and moves downward, and finishes the separating brake of circuit breaker or cut-offs action, and finally remain on open position.
Adopt O font electric power compensation arrangement, under the rated current operating state, after the contact closure between contact electrodynamic repulsion force can ignore, this moment, the balancing force of O font electric power compensation arrangement was also very little, can ignore, contact pressure is mainly provided by insulated tension pole, under the short circuit current operating state, electrodynamic repulsion force increase between contact after the contact closure, and the balancing force of O font electric power compensation arrangement also increases rapidly along with the increase of electric current, be superimposed upon on the moving contact, and electrodynamic repulsion force is cancelled each other between contact, thereby guarantee dynamic/static contact reliably contact under insulated tension pole pressure, avoid contact De Shao Erosion.
With rated voltage 12kV, rated current 1250A, operation-current 31.5kA, the vacuum circuit-breaker of short circuit making current 80 kA is example, in single-phase, during the rated current operating state, contact pressure is mainly provided by insulated tension pole, is about 500N, under the short circuit current operating state, electrodynamic repulsion force is about 1500N between contact, the balancing force of O font electric power compensation arrangement is about 1800N, thereby guarantees between contact the contact that is not less than 500N is arranged all the time, considers other factors, every permanent magnet mechanism need to provide the confining force of about 1200N, just can satisfy the operation under the various operating modes of circuit breaker.And the permanent magnet mechanism confining force of present most of circuit breaker is about 3500N even higher, and power consumption is 3-5 of the present invention times.
With the high-pressure vacuum breaker of O font electric power compensation arrangement, the moved end of its arc control device and permanent magnet mechanism are direct-connected through the insulation pull bar, do rectilinear motion, reduce the transmission link of knowing clearly, and have improved reliability.
With the high-pressure vacuum breaker of O font electric power compensation arrangement, each pole is driven by a permanent magnet mechanism, and spaced apart can be adjusted as requested, has the standardization level height, the characteristics such as reliability height, handled easily and maintenance.
Claims (6)
1. high-pressure vacuum breaker with O font electric power compensation arrangement, it is characterized in that comprising three-phase solid-sealed pole, insulated tension pole, framework, special-purpose permanent magnet mechanism, intelligent controller, wherein pole, special-purpose permanent magnet mechanism, intelligent controller are fixed on the framework; The lower electric conductor that the front end of described insulated tension pole passes in the pole is fixed on the upper end of O font electric power compensation arrangement on the moved end of vacuum interrupter, and the other end of insulated tension pole and special-purpose permanent magnet mechanism are direct-connected.
2. a kind of high-pressure vacuum breaker with O font electric power compensation arrangement according to claim 1, it is characterized in that described three-phase solid-sealed pole comprises vacuum interrupter and upper electric conductor, lower electric conductor, wherein vacuum interrupter and upper electric conductor, lower electric conductor form the three-phase solid-sealed pole with special insulation material-nylon behind the mould rapid curing, the quiet end of vacuum interrupter directly links to each other with upper electric conductor, and lower electric conductor directly links to each other with the lower end of O font electric power compensation arrangement.
3. a kind of high-pressure vacuum breaker with O font electric power compensation arrangement according to claim 1, it is characterized in that described pole and special-purpose permanent magnet mechanism are separately fixed at by the spaced apart requirement on the end face of framework, intelligent controller is fixed on the sidewall of framework.
4. a kind of high-pressure vacuum breaker with O font electric power compensation arrangement according to claim 1, an end that it is characterized in that described O font electric power compensation arrangement is fixed on the lower electric conductor, the middle part of lower electric conductor has via hole, and insulated tension pole passes this hole the other end of O font electric power compensation arrangement is fixed on the moved end of vacuum interrupter.
5. a kind of high-pressure vacuum breaker with O font electric power compensation arrangement according to claim 2 is characterized in that the moved end of described vacuum interrupter directly links to each other with special-purpose permanent magnet mechanism through the insulation pull bar.
6. a kind of high-pressure vacuum breaker with O font electric power compensation arrangement according to claim 1 is characterized in that described three-phase solid-sealed pole is driven respectively by three special-purpose permanent magnet mechanisms, and spaced apart can be adjusted as requested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104912943A CN102983038A (en) | 2012-11-28 | 2012-11-28 | High-voltage vacuum circuit breaker with O-shaped electrodynamic force compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104912943A CN102983038A (en) | 2012-11-28 | 2012-11-28 | High-voltage vacuum circuit breaker with O-shaped electrodynamic force compensation device |
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| CN102983038A true CN102983038A (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104912943A Pending CN102983038A (en) | 2012-11-28 | 2012-11-28 | High-voltage vacuum circuit breaker with O-shaped electrodynamic force compensation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374617A (en) * | 2015-11-26 | 2016-03-02 | 国家电网公司 | Coal mine explosion-proof enclosed split-phase direct-driven vacuum circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599742A1 (en) * | 1992-11-26 | 1994-06-01 | Schneider Electric Sa | Off-and-on mechanism for an electric medium-high or high voltage circuit breaker |
| CN2929944Y (en) * | 2006-07-30 | 2007-08-01 | 郭建厂 | Sealed outdoor high voltage permanent mechanism vacuum breaker |
| CN202363351U (en) * | 2011-12-13 | 2012-08-01 | 宝鸡龙光绝缘电器科技有限公司 | Novel solid-sealed polar pole |
| CN202930305U (en) * | 2012-11-28 | 2013-05-08 | 西安爱尔发开关有限公司 | High voltage vacuum circuit breaker with O-shaped electrodynamic force compensation arrangement |
-
2012
- 2012-11-28 CN CN2012104912943A patent/CN102983038A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599742A1 (en) * | 1992-11-26 | 1994-06-01 | Schneider Electric Sa | Off-and-on mechanism for an electric medium-high or high voltage circuit breaker |
| CN2929944Y (en) * | 2006-07-30 | 2007-08-01 | 郭建厂 | Sealed outdoor high voltage permanent mechanism vacuum breaker |
| CN202363351U (en) * | 2011-12-13 | 2012-08-01 | 宝鸡龙光绝缘电器科技有限公司 | Novel solid-sealed polar pole |
| CN202930305U (en) * | 2012-11-28 | 2013-05-08 | 西安爱尔发开关有限公司 | High voltage vacuum circuit breaker with O-shaped electrodynamic force compensation arrangement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374617A (en) * | 2015-11-26 | 2016-03-02 | 国家电网公司 | Coal mine explosion-proof enclosed split-phase direct-driven vacuum circuit breaker |
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Application publication date: 20130320 |