CN102623219A - Disconnecting switch and vacuum circuit breaker composite system - Google Patents
Disconnecting switch and vacuum circuit breaker composite system Download PDFInfo
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- CN102623219A CN102623219A CN2012101186386A CN201210118638A CN102623219A CN 102623219 A CN102623219 A CN 102623219A CN 2012101186386 A CN2012101186386 A CN 2012101186386A CN 201210118638 A CN201210118638 A CN 201210118638A CN 102623219 A CN102623219 A CN 102623219A
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- breaker
- vacuum circuit
- switch
- vacuum
- isolation
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- 239000002131 composite material Substances 0.000 title claims abstract description 9
- 238000002955 isolation Methods 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000008602 contraction Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 4
- 210000003323 beak Anatomy 0.000 abstract 1
- 230000001052 transient effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 206010001541 Akinesia Diseases 0.000 description 1
- 206010010774 Constipation Diseases 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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Abstract
The invention discloses a disconnecting switch and vacuum circuit breaker composite system. A disconnecting switch and a vacuum circuit breaker are connected in series to constitute a composite switch system in which a disconnecting break is associated with a vacuum interrupter break, wherein the disconnecting beak is a spacing zone between a disconnecting link of the disconnecting switch and the tail end of a moving contact of the vacuum circuit breaker, and the vacuum interrupter break is the other break between the moving contact and a static contact of the vacuum circuit breaker. The disconnecting break provides a visible electric spacing section for the vacuum interrupter break. By implementation of the composite system scheme disclosed by the invention, the disconnecting switch and the vacuum circuit breaker are associated mutually so that the composite system is free from electric-mechanical interlocking and is compact in volume, simple and reliable in structure and increased in safety; and particularly, a vacuum interrupter of the vacuum circuit breaker only needs to bear lower power frequency recovery voltage and transient recovery voltage, so that the insulation requirement for the vacuum interrupter is reduced and the cost is reduced.
Description
Technical field
The present invention relates to a kind of pressure-air open-circuit system, relate in particular to a kind of combination switch system that has isolation and arc extinguishing function concurrently.
Background technology
Isolating switch: be a kind of control apparatus that does not have arc-control device, its major function is an insulating power supply, to guarantee the safety inspection of other electric equipment, does not therefore allow the on-load operation.But allow to be switched on or switched off low-power circuit under certain condition.The isolation fracture that isolating switch provides must guarantee that this fracture is not breakdown and produce discharge in air.
Vacuum circuit-breaker: it can be at make-and-break contact under the load condition through vacuum interrupter, and when system produced short trouble, ability is cutting-off of short-circuit electric current rapidly.It can also excise short trouble automatically under the effect of protective device.The vacuum interrupter of vacuum circuit-breaker need be born the power-frequency withstand voltage and the lightning impulse voltage of electric power system nominal.Can be through vacuum interrupter at make-and-break contact under the load condition, the rapid cutting-off of short-circuit electric current of ability during the system failure.It can also excise short trouble automatically under the effect of protective device.
The insulation withstand voltage of vacuum interrupter is born by the dynamic/static contact fracture that is under the vacuum state; But a variety of causes causes vacuum degree to reduce because vacuum extinction is indoor; Make insulation breakdown, this moment, switchgear needed a visible fracture to satisfy the requirement of electric insulation under the most severe condition.And because isolating switch can not be operated by on-load, promptly when the vacuum circuit breaker was in "on" position, traditional layout type, isolating switch did not allow to move.
This shows conventional art deficiency both ways: isolating switches and circuit breaker are separate; Isolating switch provides visible isolation fracture; Circuit breaker provides the fracture of vacuum interrupter dynamic/static contact; The double break mouth that this is separate causes switchgear assembly bulky, and cost improves; The two isolating switch and circuit breaker need electric and mechanical interlocked, guarantee in breaker closing the isolating switch akinesia.Can increase cost accordingly and increase interlocking, and when interlocking was lost efficacy, still have the risk of misoperation in theory, reliability is relatively poor.
Summary of the invention
Defective in view of above-mentioned prior art exists the objective of the invention is to propose a kind of isolating switch and vacuum circuit-breaker hybrid system, solves the location problem of double break mouth.
Above-mentioned purpose of the present invention; Isolating switch and vacuum circuit-breaker hybrid system; It is characterized in that: said isolating switch connects the combination switch system that the formation isolation fracture is associated with the vacuum interrupter fracture with the vacuum circuit-breaker tandem; Said isolation fracture be between the moving contact tail end of isolation switch and vacuum circuit-breaker of isolating switch one at a distance from the dead zone, said vacuum interrupter fracture is that the moving contact of vacuum circuit-breaker and between the fixed contact another are at a distance from dead zone.
Further, said vacuum circuit-breaker is provided with limiting plate, and between limiting plate and moving contact, is provided with tripping spring, and said tripping spring pressurized contraction state lower moving contact contacts with fixed contact, closed vacuum interrupter fracture; Said tripping spring nature lower moving contact separates, forms the vacuum interrupter fracture with fixed contact.
Further, said isolating switch is the Direct Action Type switch, and said isolation switch is controlled flexible over against directly making progress of vacuum circuit-breaker.
Above-mentioned another purpose of the present invention; Isolating switch and vacuum circuit-breaker composite utility method realize based on a kind of combination switch system, and said combination switch system constitutes for being connected with the vacuum circuit-breaker tandem by isolating switch; Have isolation fracture and vacuum interrupter fracture; It is characterized in that: in the making process, the isolation switch of said isolating switch is controlled to move and is crimped to the moving contact tail end to vacuum circuit-breaker, and isolation fracture closes a floodgate earlier; The tripping spring of said moving contact and isolation switch servo-actuated, compression vacuum circuit breaker also joins with fixed contact, accomplishes the pairing lock; In the separating brake process; Said isolating switch discharges the actuating force of isolation switch; Moving contact forms the vacuum interrupter fracture with fixed contact elder generation separating brake down in the diastole power traction that resets of the tripping spring of vacuum circuit-breaker, and isolation switch relies on inertia and moving contact tail end separating brake formation isolation fracture then.
Further, said isolation switch is to the initial velocity of vacuum circuit-breaker output combined floodgate.
Further, said tripping spring is to cook's speed of vacuum circuit-breaker output separating brake.
The application implementation of hybrid system scheme of the present invention, its outstanding effect is: isolating switch and vacuum circuit-breaker is interrelated, and it is electric and mechanical interlocked to make that hybrid system need not, and volume compact is simple and reliable for structure, and fail safe improves; Especially, the vacuum interrupter of vacuum circuit-breaker only need be born lower power frequency recovery voltage and instantaneous recovery voltage, has reduced the insulating requirements of vacuum interrupter, reduces cost.
Following constipation closes the embodiment accompanying drawing, and specific embodiments of the invention is done further to detail, so that technical scheme of the present invention is easier to understand, grasp.
Description of drawings
Fig. 1 is the structural representation of hybrid system isolating switch separating brake of the present invention, vacuum circuit-breaker separating brake.
Fig. 2 is this structural representation that practical hybrid system isolating switch closes a floodgate, vacuum circuit-breaker closes a floodgate.
Embodiment
The present invention is directed to the defective that conventional art exists, innovation has proposed a kind of isolating switch and vacuum circuit-breaker hybrid system, solves the rational deployment problem of double break mouth breakthroughly.
From layout structure; This isolating switch and vacuum circuit-breaker hybrid system are that isolating switch 1 connects the combination switch system that the formation isolation fracture is associated with the vacuum interrupter fracture with vacuum circuit-breaker 2 tandems; This isolation fracture (I) be between moving contact 22 tail ends of isolation switch 12 and vacuum circuit-breaker 2 of isolating switch 1 one at a distance from the dead zone, this vacuum interrupter fracture (II) be the moving contact 22 of vacuum circuit-breaker and another the separated dead zone between the fixed contact 21.
Also visible from diagram: this vacuum circuit-breaker is provided with limiting plate 24, and between limiting plate 24 and moving contact 22, is provided with tripping spring 23, and these tripping spring 23 pressurized contraction state lower moving contacts 22 contact with fixed contact 21, closed vacuum interrupter fracture (II); These tripping spring 23 nature lower moving contacts 22 separate, form vacuum interrupter fracture (II) with fixed contact 21.And this isolating switch 1 is the Direct Action Type switch, and this isolation switch 12 is making progress based on matrix 11 controlled the stretching of isolating switch 1 over against the straight of vacuum circuit-breaker 2.
The layout structure scheme of the invention described above isolating switch and vacuum circuit-breaker hybrid system is easier to understand from its actual application.
Separating brake → combined floodgate, as shown in Figure 1, isolating switch and vacuum circuit-breaker all are in gate-dividing state, and this tandem layout of isolating switch and vacuum circuit-breaker provides isolation fracture (I), and vacuum circuit-breaker provides vacuum interrupter fracture (II); Isolated port (I) is born the withstand voltage and the lightning impulse voltage of electric power system nominal; Externally mechanism's effect is following when isolation switch, moves downward, and isolation switch begins to compress the moment of tripping spring; Vacuum interrupter begins action; This moment, isolation switch offered the initial velocity that vacuum circuit-breaker closes a floodgate, and after dynamic/static contact contact fully, tripping spring also energy storage finishes; As shown in Figure 2, isolating switch and vacuum circuit-breaker all are in "on" position;
Combined floodgate → separating brake, as shown in Figure 2, isolating switch and vacuum circuit-breaker all are in "on" position; When being applied to the external force disappearance of isolating on opening the light, the tripping spring in the vacuum circuit-breaker releases energy, and offers separating brake initial velocity of vacuum circuit-breaker; Driving isolation switch simultaneously moves upward; When isolation switch has moved a period of time, when soon breaking away from vacuum circuit-breaker fully, the success of vacuum interrupter arc extinguishing; Need this moment vacuum interrupter need bear power frequency recovery voltage and instantaneous recovery voltage, prevent that vacuum interrupter bang from wearing.Final isolation switch relies on the success of inertia separating brake, and is as shown in Figure 1.
When switch movement finishes, only two states can appear: the equal separating brake of isolating switch and vacuum circuit-breaker; Isolating switch and vacuum circuit-breaker all close a floodgate.The situation of isolating switch misoperation can not appear when the vacuum breaker closing.
To sum up, after the application of hybrid system scheme of the present invention, it compares to the conventional in layout structure and has obviously outstanding advantage: it is interrelated to be about to isolating switch and vacuum circuit-breaker; It is electric and mechanical interlocked to make hybrid system need not; Volume compact, simple and reliable for structure, fail safe improves; Especially, the vacuum interrupter of vacuum circuit-breaker only need be born lower power frequency recovery voltage and instantaneous recovery voltage, has reduced the insulating requirements of vacuum interrupter, reduces cost.
Claims (6)
1. isolating switch and vacuum circuit-breaker hybrid system; It is characterized in that: said isolating switch connects the combination switch system that the formation isolation fracture is associated with the vacuum interrupter fracture with the vacuum circuit-breaker tandem; Said isolation fracture be between the moving contact tail end of isolation switch and vacuum circuit-breaker of isolating switch one at a distance from the dead zone, said vacuum interrupter fracture is that the moving contact of vacuum circuit-breaker and between the fixed contact another are at a distance from dead zone.
2. isolating switch according to claim 1 and vacuum circuit-breaker hybrid system; It is characterized in that: said vacuum circuit-breaker is provided with limiting plate; And between limiting plate and moving contact, be provided with tripping spring, said tripping spring pressurized contraction state lower moving contact contacts with fixed contact, closed vacuum interrupter fracture; Said tripping spring nature lower moving contact separates, forms the vacuum interrupter fracture with fixed contact.
3. isolating switch according to claim 2 and vacuum circuit-breaker hybrid system is characterized in that: said isolating switch is the Direct Action Type switch, and said isolation switch is controlled flexible over against directly making progress of vacuum circuit-breaker.
4. isolating switch and vacuum circuit-breaker composite utility method; Realize based on a kind of combination switch system; Said combination switch system constitutes for being connected with the vacuum circuit-breaker tandem by isolating switch, has isolation fracture and vacuum interrupter fracture, it is characterized in that: in the making process; The isolation switch of said isolating switch is controlled to move and is crimped to the moving contact tail end to vacuum circuit-breaker; Isolation fracture closes a floodgate earlier, and the tripping spring of said moving contact and isolation switch servo-actuated, compression vacuum circuit breaker also joins completion pairing lock with fixed contact; In the separating brake process; Said isolating switch discharges the actuating force of isolation switch; Moving contact forms the vacuum interrupter fracture with fixed contact elder generation separating brake down in the diastole power traction that resets of the tripping spring of vacuum circuit-breaker, and isolation switch relies on inertia and moving contact tail end separating brake formation isolation fracture then.
5. isolating switch according to claim 4 and vacuum circuit-breaker composite utility method is characterized in that: the initial velocity that said isolation switch closes a floodgate to vacuum circuit-breaker output.
6. isolating switch according to claim 4 and vacuum circuit-breaker composite utility method is characterized in that: said tripping spring is to the initial velocity of vacuum circuit-breaker output separating brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101186386A CN102623219A (en) | 2012-04-23 | 2012-04-23 | Disconnecting switch and vacuum circuit breaker composite system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101186386A CN102623219A (en) | 2012-04-23 | 2012-04-23 | Disconnecting switch and vacuum circuit breaker composite system |
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| CN102623219A true CN102623219A (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101186386A Pending CN102623219A (en) | 2012-04-23 | 2012-04-23 | Disconnecting switch and vacuum circuit breaker composite system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769258A (en) * | 2012-08-07 | 2012-11-07 | 苏州朗格电气有限公司 | Efficient hydrogen insulation ring net cabinet |
| CN107610972A (en) * | 2017-09-12 | 2018-01-19 | 中国振华电子集团宇光电工有限公司（国营第七七厂） | A kind of double-fracture pole and application method for being used to cut electric capacity |
| CN109065406A (en) * | 2018-09-06 | 2018-12-21 | 天津合纵电力设备有限公司 | Vacuum arc-extinguishing chamber assembly with built-in isolation fracture and vacuum circuit breaker |
| CN111863520A (en) * | 2020-07-21 | 2020-10-30 | 江苏南瑞泰事达电气有限公司 | A direct-acting circuit breaker with isolation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484044A (en) * | 1981-07-16 | 1984-11-20 | Fuji Electric Company, Ltd. | Vacuum load switch with a disconnecting switch |
| CN2129461Y (en) * | 1992-05-04 | 1993-04-07 | 镇江市电工器材厂 | Vacuum switch with isolated break |
| CN1324128A (en) * | 2000-05-17 | 2001-11-28 | 费尔腾和古伊勒奥梅股份公司 | Gas isolating switching equipment having vacuum switch |
| CN1885465A (en) * | 2006-06-12 | 2006-12-27 | 宁波天安（集团）股份有限公司 | Vacuum switch with up and low isolations |
| CN2924764Y (en) * | 2006-07-03 | 2007-07-18 | 福建东方电器有限公司 | Vacuum circuit breaker with direct-acting isolating switch |
| CN102244372A (en) * | 2010-05-13 | 2011-11-16 | 北京维益埃电气有限公司 | Integrated vacuum circuit breaker |
| CN202957217U (en) * | 2012-04-23 | 2013-05-29 | 苏州朗格电气有限公司 | Disconnecting switch and vacuum circuit breaker composite system |
-
2012
- 2012-04-23 CN CN2012101186386A patent/CN102623219A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484044A (en) * | 1981-07-16 | 1984-11-20 | Fuji Electric Company, Ltd. | Vacuum load switch with a disconnecting switch |
| CN2129461Y (en) * | 1992-05-04 | 1993-04-07 | 镇江市电工器材厂 | Vacuum switch with isolated break |
| CN1324128A (en) * | 2000-05-17 | 2001-11-28 | 费尔腾和古伊勒奥梅股份公司 | Gas isolating switching equipment having vacuum switch |
| CN1885465A (en) * | 2006-06-12 | 2006-12-27 | 宁波天安（集团）股份有限公司 | Vacuum switch with up and low isolations |
| CN2924764Y (en) * | 2006-07-03 | 2007-07-18 | 福建东方电器有限公司 | Vacuum circuit breaker with direct-acting isolating switch |
| CN102244372A (en) * | 2010-05-13 | 2011-11-16 | 北京维益埃电气有限公司 | Integrated vacuum circuit breaker |
| CN202957217U (en) * | 2012-04-23 | 2013-05-29 | 苏州朗格电气有限公司 | Disconnecting switch and vacuum circuit breaker composite system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769258A (en) * | 2012-08-07 | 2012-11-07 | 苏州朗格电气有限公司 | Efficient hydrogen insulation ring net cabinet |
| CN107610972A (en) * | 2017-09-12 | 2018-01-19 | 中国振华电子集团宇光电工有限公司（国营第七七厂） | A kind of double-fracture pole and application method for being used to cut electric capacity |
| CN109065406A (en) * | 2018-09-06 | 2018-12-21 | 天津合纵电力设备有限公司 | Vacuum arc-extinguishing chamber assembly with built-in isolation fracture and vacuum circuit breaker |
| CN111863520A (en) * | 2020-07-21 | 2020-10-30 | 江苏南瑞泰事达电气有限公司 | A direct-acting circuit breaker with isolation |
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Application publication date: 20120801 |