CN203070999U - V-shaped series-structure ultrahigh-voltage vacuum circuit breaker - Google Patents
V-shaped series-structure ultrahigh-voltage vacuum circuit breaker Download PDFInfo
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- CN203070999U CN203070999U CN2012206428777U CN201220642877U CN203070999U CN 203070999 U CN203070999 U CN 203070999U CN 2012206428777 U CN2012206428777 U CN 2012206428777U CN 201220642877 U CN201220642877 U CN 201220642877U CN 203070999 U CN203070999 U CN 203070999U
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- 239000013307 optical fiber Substances 0.000 claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 24
- 238000002955 isolation Methods 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Abstract
The utility model relates to a V-shaped series-structure ultrahigh-voltage vacuum circuit breaker which comprises two vacuum circuit breakers, equalizing capacitors, a connector, an insulating support, a steel bracket, an optical fiber, a high-voltage side controller, a circuit breaker inlet wire, a circuit breaker outlet wire, an outdoor case and a V-shaped series-structure whole machine controller. The V-shaped series-structure ultrahigh-voltage vacuum circuit breaker is characterized in that the two vacuum circuit breakers are connected in series into a V-shaped structure, the voltage of each single vacuum circuit breaker is 126kV, and the voltage of the whole circuit breaker machine is increased to 252kV after the vacuum circuit breakers are connected in series; and the equalizing capacitors are adopted to equalize the voltages of the two vacuum circuit breakers so that the withstand voltage value of a fracture of each single vacuum circuit breaker is equalized, and the V-shaped series structure can reduce the impact of pollution on the equalizing capacitance value. The structure makes a vacuum circuit breaker achieve the level of an ultrahigh-voltage vacuum circuit breaker.
Description
Technical field
The utility model relates to a kind of EHV Vacuum Breaker of V-type cascaded structure, belongs to high voltage electrical apparatus technical field.
Background technology
Sharp increase along with China's power load, and the large span of China supply and demand position, the ultra-high-tension power transmission line of national grid and transmission of electricity grade all further promote in recent years, make the demand sharp increase of primary cut-out equipment, stable operation and the environmental requirement to primary cut-out simultaneously also improves thereupon.At present, the dielectric of electrical network mesohigh extra high voltage circuit breaker mainly adopts SF
6, SF
6Be to cause one of greenhouse gases.Along with global warming, human to the reinforcement gradually of environmental protection protection consciousness, and the signing of the Kyoto Protocol, the switch industry of countries in the world all substitutes SF at a kind of insulation property of searching dielectric good and environmental protection
6
Widely apply the middle pressure vacuum circuit-breaker of vacuum insulation to have good operational effect at present in the electrical network, show that vacuum is a kind of good dielectric, but vacuum is mainly used in middle pressure field, the vacuum medium is used for the high-voltage and ultra-high circuit breaker replaces SF
6Dielectric is with significant.Showing after deliberation that the vacuum medium is withstand voltage under large opening presents certain saturation characteristic, and vacuum has the good characteristics of short air gap insulation, therefore carries out the series connection of vacuum short air gap and can improve the dielectric voltage withstand grade.Vacuum interrupter is the important composition parts of vacuum circuit-breaker, the single vacuum interrupter that has dropped at present operation of power networks is 72.5kV, the single arc control device ceiling voltage of developing can reach 126kV, the voltage of vacuum medium can be used by the vacuum interrupter serial connection technology and further rise to extra high voltage circuit breaker.
In view of this, the utility model provides a kind of EHV Vacuum Breaker of V-type cascaded structure, to satisfy the commercial Application needs.
Summary of the invention
The purpose of this utility model is the vacuum insulation media applications is arrived extra high voltage circuit breaker, realizes the environmental protection of circuit breaker, reduces greenhouse effect.
The technical solution of the utility model is: a kind of EHV Vacuum Breaker of V-type cascaded structure, comprise two vacuum circuit-breakers, equalizing capacitor, connector, insulation column, steel bracket, optical fiber, high-pressure side controller, circuit breaker inlet wire, circuit breaker outlet, outdoor crate, V-type cascaded structure complete machine controller, it is characterized in that, utilize the V-structure series connection by two vacuum circuit-breakers, single vacuum circuit-breaker is 126kV, and the voltage levvl that the complete machine circuit breaker is improved in the series connection back reaches 252kV; Adopt equalizing capacitor that two vacuum circuit-breakers are all pressed, single vacuum circuit-breaker fracture withstand voltage is divided equally, the V-structure series connection can reduce filthy influence to the equalizing capacitance value.
The EHV Vacuum Breaker of aforesaid V-type cascaded structure, it is characterized in that, the high-pressure side controller is received and dispatched the divide-shut brake order by optical fiber and V-type cascaded structure complete machine controller, cascaded structure complete machine controller is controlled three-phase vacuum breaker simultaneously, can control many isostructural vacuum circuit-breakers in the transformer station by expansion.
The EHV Vacuum Breaker of aforesaid V-type cascaded structure, it is characterized in that, optical fiber is imbedded the insulation column inwall in advance, and by the spiral insulation column inside that is arranged in, insulation column is poured into a mould embedding by epoxy resin again, the isolation of high electronegative potential be can realize, high-pressure side vacuum circuit-breaker controller and cascaded structure complete machine controller electrical isolation made.
The EHV Vacuum Breaker of aforesaid V-type cascaded structure is characterized in that, V-type cascaded structure complete machine controller can be realized the control of many circuit breakers, only needs to increase the way of optical fiber, can realize the control of a plurality of vacuum circuit-breakers.
The EHV Vacuum Breaker of aforesaid V-type cascaded structure, it is characterized in that, single vacuum circuit-breaker inside is permanent-magnet manipulating mechanism, the dispersiveness that can guarantee single vacuum circuit-breaker branch wire time is very little, make a plurality of circuit breakers synchronous switching off at one time by the time-delay that each single vacuum circuit-breaker is set, improve the connecting-disconnecting function of circuit breaker, can be used as and select the phase circuit breaker to use.
The beneficial effects of the utility model are: (1) utilizes the V-structure series connection by two vacuum circuit-breakers, and single vacuum circuit-breaker is 126kV, and the voltage levvl that the complete machine circuit breaker is improved in the series connection back reaches 252kV; (2) adopt equalizing capacitor that two vacuum circuit-breakers are all pressed, single vacuum circuit-breaker fracture withstand voltage is divided equally, the V-structure series connection can reduce filthy influence to the equalizing capacitance value; (3) the vacuum circuit-breaker complete machine controller that reaches 252kV after the series connection is at electronegative potential, and the signal of high potential and electronegative potential transmits by optical fiber and realizes, optical fiber has the good insulation performance performance simultaneously, can the high electronegative potential of good isolation, avoid the signal interference.(4) series connection vacuum circuit-breaker complete machine supports high potential by insulation column, and optical fiber is imbedded the insulation column inwall in advance, and by the spiral insulation column inside that is arranged in, insulation column is poured into a mould embedding by epoxy resin again, can realize the isolation of high electronegative potential; (5) V-type cascaded structure complete machine controller can be realized the control of many circuit breakers, only needs to increase the way of optical fiber, can realize the control of a plurality of vacuum circuit-breakers; (6) single vacuum circuit-breaker inside is permanent-magnet manipulating mechanism, the dispersiveness that can guarantee single vacuum breaker module branch wire time is very little, make a plurality of circuit breakers synchronous switching off at one time by the time-delay that each independent vacuum breaker module is set, improve the connecting-disconnecting function of circuit breaker, can be used as and select the phase circuit breaker to use.
Description of drawings
Fig. 1 is the structural representation of EHV Vacuum Breaker of a kind of V-type cascaded structure of the utility model embodiment.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.Those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values are equally within the listed claims limited range of the application.
The explanation of mark among Fig. 1: the complete machine controller of 1-vacuum circuit-breaker, 2-equalizing capacitor, 3-connector, 4-insulation column, 5-steel bracket, 6-optical fiber, 7-high-pressure side controller, 8-circuit breaker inlet wire, the outlet of 9-circuit breaker, 10-outdoor crate, 11-V-type cascaded structure.
252kV EHV Vacuum Breaker with a kind of V-type cascaded structure is the example explanation, circuit breaker mainly cut-offs short circuit current by arc control device, the arc control device of vacuum circuit-breaker are the vacuum insulation medium, the single vacuum circuit-breaker of this example is 126kV, utilize the V-structure series connection by a plurality of vacuum circuit-breakers 1, the voltage levvl that circuit breaker integral body is improved in the series connection back reaches 252kV.Adopt 2 pairs of two vacuum circuit-breakers of equalizing capacitance all to press, single vacuum circuit-breaker fracture withstand voltage is divided equally avoided restriking puncture, adopt the V-structure series connection can reduce filthy influence to the equalizing capacitance value simultaneously, avoid all pressing failure.
The 252kV EHV Vacuum Breaker of V-type cascaded structure adopts bistable-state permanent magnet mechanism, and divide-shut brake realizes deciliter that by the moving guide rod of the divide-shut brake coil drive of permanent magnet mechanism the electric current in the divide-shut brake coil provides by the capacitor discharge.The energy of capacitor obtains electric current by high potential capacitor is charged, and whole permanent magnet mechanism and control loop are in high potential in single vacuum circuit-breaker inside.Reach the vacuum circuit-breaker complete machine controller of 252kV after the series connection at electronegative potential, the signal of high potential and electronegative potential transmits by optical fiber and realizes, optical fiber has the good insulation performance performance simultaneously, can the high electronegative potential of good isolation, and avoid signal to disturb.
Series connection vacuum circuit-breaker complete machine supports high potential by insulation column, optical fiber is imbedded the insulation column inwall in advance, and by the spiral insulation column inside that is arranged in, insulation column is poured into a mould embedding by epoxy resin again, can realize the isolation of high electronegative potential, make the built-in controller of high-pressure side vacuum circuit-breaker be connected control with series connection vacuum circuit-breaker complete machine controller, series connection vacuum circuit-breaker complete machine controller by electronegative potential sends the divide-shut brake order to the built-in controller realization breaking-closing operating of high-pressure side vacuum circuit-breaker, and optical fiber has solved the height potential isolation.
Series connection vacuum circuit-breaker complete machine controller can be realized the control of many circuit breakers, only needs to increase the way of optical fiber, can realize the control of a plurality of vacuum circuit-breakers; Single vacuum circuit-breaker inside is permanent-magnet manipulating mechanism, the dispersiveness that can guarantee single vacuum breaker module branch wire time is very little, make a plurality of circuit breakers synchronous switching off at one time by the time-delay that each independent vacuum breaker module is set, improve the connecting-disconnecting function of circuit breaker, can be used as and select the phase circuit breaker to use.
The content that is not described in detail in this specification belongs to this area professional and technical personnel's known prior art.
Claims (5)
1. the EHV Vacuum Breaker of a V-type cascaded structure, comprise two vacuum circuit-breakers (1), equalizing capacitor (2), connector (3), insulation column (4), steel bracket (5), optical fiber (6), high-pressure side controller (7), circuit breaker inlet wire (8), circuit breaker outlet (9), outdoor crate (10), V-type cascaded structure complete machine controller (11), it is characterized in that, utilize the V-structure series connection by two vacuum circuit-breakers (1), single vacuum circuit-breaker (1) is 126kV, and the voltage levvl that the complete machine circuit breaker is improved in the series connection back reaches 252kV; Adopt equalizing capacitor (2) that two vacuum circuit-breakers (1) are all pressed, single vacuum circuit-breaker (1) fracture withstand voltage is divided equally, the V-structure series connection can reduce filthy influence to the equalizing capacitance value.
2. the EHV Vacuum Breaker of V-type cascaded structure according to claim 1, it is characterized in that, high-pressure side controller (7) is received and dispatched the divide-shut brake order by optical fiber (6) and V-type cascaded structure complete machine controller (11), cascaded structure complete machine controller (11) is controlled three-phase vacuum breaker simultaneously, can control many isostructural vacuum circuit-breakers in the transformer station by expansion.
3. the EHV Vacuum Breaker of V-type cascaded structure according to claim 1, it is characterized in that, optical fiber (6) is imbedded insulation column (4) inwall in advance, and by spiral insulation column (4) inside that is arranged in, insulation column (4) is poured into a mould embedding by epoxy resin again, the isolation of high electronegative potential be can realize, high-pressure side vacuum circuit-breaker controller and cascaded structure complete machine controller electrical isolation made.
4. the EHV Vacuum Breaker of V-type cascaded structure according to claim 1, it is characterized in that, V-type cascaded structure complete machine controller (11) can be realized the control of many circuit breakers, only needs to increase the way of optical fiber (6), can realize the control of a plurality of vacuum circuit-breakers.
5. the EHV Vacuum Breaker of V-type cascaded structure according to claim 1, it is characterized in that, single vacuum circuit-breaker (1) inside is permanent-magnet manipulating mechanism, the dispersiveness that can guarantee single vacuum circuit-breaker (1) branch wire time is very little, make a plurality of circuit breakers synchronous switching off at one time by the time-delay that each single vacuum circuit-breaker (1) is set, improve the connecting-disconnecting function of circuit breaker, can be used as and select the phase circuit breaker to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206428777U CN203070999U (en) | 2012-11-29 | 2012-11-29 | V-shaped series-structure ultrahigh-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206428777U CN203070999U (en) | 2012-11-29 | 2012-11-29 | V-shaped series-structure ultrahigh-voltage vacuum circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN203070999U true CN203070999U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206428777U Expired - Fee Related CN203070999U (en) | 2012-11-29 | 2012-11-29 | V-shaped series-structure ultrahigh-voltage vacuum circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444437A (en) * | 2019-07-12 | 2019-11-12 | 大连理工大学 | A kind of high-pressure vacuum breaker intelligent object of high potential driving |
-
2012
- 2012-11-29 CN CN2012206428777U patent/CN203070999U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444437A (en) * | 2019-07-12 | 2019-11-12 | 大连理工大学 | A kind of high-pressure vacuum breaker intelligent object of high potential driving |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20171129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |