CN101404228A - Vacuum circuit breaker - Google Patents
Vacuum circuit breaker Download PDFInfo
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- CN101404228A CN101404228A CNA200810143614XA CN200810143614A CN101404228A CN 101404228 A CN101404228 A CN 101404228A CN A200810143614X A CNA200810143614X A CN A200810143614XA CN 200810143614 A CN200810143614 A CN 200810143614A CN 101404228 A CN101404228 A CN 101404228A
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- spring
- vacuum circuit
- vacuum
- vacuum tube
- breaker
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Abstract
The invention relates to a vacuum breaker used for electric locomotives and motor train units, which is a vertical column and consists of a high voltage part, an insulation supporting part and a low voltage control part which are sequentially laminated from top to bottom; the vacuum breaker is characterized in that a spring mechanism in the high voltage part is an integrated three-column typed spring mechanism and consists of a closing spring, a pressing plate component which pushes through the spring, a cylindrical chamber which receives the closing spring, a connecting base which is connected with a movable contact and a spring cover which is matched with the connecting seat; the pressing plate component, the spring cover and the closing spring are arranged coaxially. The invention improves the mechanical service life which is up to more than 300,000 times of use, greatly reinforces the insulation performance, quickens the response speed, improves the on-off performance (up to 660MVA) of the product by reasonable configuration of operation force and operation speed, has an inherent opening time less than 30ms, has fast response speed and can protect the locomotive equipment and safety of personnel better.
Description
Technical field
The present invention relates to a kind of railway use for electric locomotive electric component, particularly the vacuum circuit-breaker that uses in electric locomotive and the motor train unit.
Background technology
Vacuum circuit-breaker is a most important electric component on railway electric locomotive and the motor train unit, and it has two effects greatly: the one, be used for connecting the high-tension circuit with disjunction locomotive or motor train unit, and be the power control switch of system; The 2nd, when locomotive or motor train unit break down, rapidly, safety, cut off general supply, protection operating personnel's personal safety and device security effectively.Therefore it has the dual-use function of control and protection.
Along with the develop rapidly of railway, the railway electric locomotive technology is also maked rapid progress, and is also more and more higher to the requirement of the topmost protection electrical equipment-vacuum circuit-breaker of locomotive, is mainly reflected in following several aspect:
1, along with the increase of railway transporting amount, the power of electric locomotive is increasing, to the locomotive circuit breaker to cut-off capacity requirement also more and more higher.
2, because being on the increase of transportation load on the railway locomotive circuit, railway power supply network capacity amount requires to increase, and also the phase strain is big in the tractive power supply system voltage fluctuation, and therefore the highest permission operating voltage to the locomotive circuit breaker requires also to improve thereupon.
3, the characteristics of railway locomotive " long routing " (being that range ability is long and crossroad is many) operation improve the day utilization mileage of locomotive greatly, and the action frequency of circuit breaker also increases thereupon, and is therefore, also more and more higher to requirement mechanical endurance of circuit breaker.
4, at some special area, as North China of China, ground such as coastal, environmental pollution is more serious, and pollution level is very high, and the requirement of the dirty ability of resistant of locomotive circuit breaker is also improved thereupon.
The general structure of circuit breaker of the prior art is: vertical type column vacuum circuit-breaker, be made up of folded mutually successively from top to bottom high voltage component, insulating support member, low voltage control component, the effect of high voltage component is by the dynamic/static contact that is connected with high voltage source respectively being closed a floodgate or separating brake and arc extinguishing; The spring base of the disconnected arc control device machinery of its vacuum master does not have the step of vacuum tube centralized positioning, and spring radial-play easily takes place and not coaxial with vacuum tube, produces catching phenomenon; Fill insulant is a silicon gel in the disconnected arc control device of vacuum master, and its insulating properties is not good, and cohesive force is poor.The effect of insulation support section mainly is to make high-pressure section and low voltage control SI semi-insulation and play a supportive role; Its supporting insulator inner surface is not provided with insulating barrier, and inner creepage distance generally has only 380mm.Low voltage control partly is the operating mechanism of vacuum circuit-breaker, the general pneumatic control mode that adopts, compressed air enters the interior reservoir reservoir after by pressure regulation, by compressed-air actuated switching control being realized the action control to the transmission cylinder, thereby realizes the closure to product, the operation control of cut-offfing.The not integrated setting of gas circuit, each parts is discrete, connects with pipeline, and pipe joint quantity is many, and the possibility of gas leakage is big, and response speed is relatively slow.Its design parameter is generally: maximum operating voltage 30KV, cut-off capacity 360MVA, be 200,000 mechanical endurance, fouling resistance rating only reaches the III level, these parameters do not reach with above-mentioned operating mode under the index request that is complementary of the locomotive that moves, built-in electrical insulation puncture, outside pollution flashover very easily take place, refuse branch and refuse to close, cut-off various faults such as bad in circuit breaker failure rate height in the locomotive operation, and the motorcycle safety reliability service is brought very big influence.
Therefore, need existing locomotive circuit breaker is further improved, make it fully to adapt to the performance of locomotive requirement of under these special operation conditions, working, guarantee the security reliability of locomotive operation.
Summary of the invention
The object of the present invention is to provide a kind of use for electric locomotive vacuum circuit-breaker, it has cut-offs the advantage that capacity is big, rated voltage is high, the dirty grade of resistant is high, adapt to big at the power supply network capacity, the operation area is vast, day many, the environmental pollution of utilization mileage is than the performance requirement of electric locomotive of working under the serious condition and motor train unit.
Technical scheme of the present invention is:
A kind of vacuum circuit-breaker, it is the vertical type column, by folded mutually successively from top to bottom high voltage component, insulating support member, low voltage control component is formed, described high voltage component comprises cylindric arc control device, the center coaxial package of arc control device has vacuum tube, described vacuum tube upper and lower side is respectively equipped with quiet, moving contact, the moving contact lower end is provided with the spring mechanism that makes dynamic/static contact be in normal minute state, the vacuum tube outer surface is with composite insulator, fill insulating cement between composite insulator and the vacuum tube, described insulating support member comprises the supporting insulator of cylindric band full skirt and the insulation push rod of long tubular band rubber full skirt, insulation push rod coaxial package is in the supporting insulator center, described low voltage control component is made up of controlling organization and electric component two parts, described controlling organization by the transmission cylinder, electromagnetically operated valve, the storage reservoir, pressure regulating valve, fast-discharge valve is formed, described electric part has electromagnetic valve coil, sensitive switch, the control connection device is formed, and it is characterized in that:
Described spring mechanism is an one three pillar type spring mechanism, the Anchor plate kit that it offsets by switching-in spring, with spring, have the cylindrical cavity that contains switching-in spring and the Connection Block that is connected with moving contact, the spring cup that matches with Connection Block forms the coaxial installation of described Anchor plate kit, spring cup and switching-in spring.
As to further improvement of the present invention, be provided with the boss coaxial in the described Connection Block with the vacuum tube center.
As to further improvement of the present invention, be provided with the cushion pad of making by energy-absorbing rubber in the described spring cup.
As to further improvement of the present invention, the insulating cement of filling between described composite insulator and the vacuum tube is a silicon rubber.
As to further improvement of the present invention, the inner surface of described supporting insulator is cast with the insulation radiation fins.
As to further improvement of the present invention, the metal flange outer surface of described supporting insulator is coated by silastic-layer.
As to further improvement of the present invention, described transmission cylinder, electromagnetically operated valve, storage reservoir, pressure regulating valve, fast-discharge valve, electromagnetic valve coil, sensitive switch, control connection device are integrated and are assembled into the gas circuit integrated control system and are installed on the transmission cylinder pedestal.
Beneficial effect of the present invention is:
1, because the present invention has improved the spring mechanism that makes dynamic/static contact be in normal minute state, switching-in spring is limited in the fixed space and therein the heart be provided with boss, can make spring automatic centering in the course of the work, improve the concentricity of spring and moving contact, vacuum tube, guarantee that the driving force that mechanical transmission component is exported acts on the central axis of vacuum tube moving contact in the transmission operating process, do not produce and depart from, reduce the wearing and tearing of each parts, improve the mechanical endurance of moving component, reached more than 300,000 times mechanical endurance of the present invention.
2, the energy-absorbing rubber buffer is set, composite buffering is respond well, the impact in the time of effectively reducing breaking-closing operating, the mechanical endurance of improving vacuum circuit-breaker.
3, because the present invention is provided with the insulation radiation fins at the supporting insulator inner surface, and inner creepage distance can reach 500mm,, increased outer creepage distance, can reach 1150mm because supporting insulator external metallization flange coats with silicon rubber.Supporting insulator durability against pollution of the present invention strengthens, and inside and outside insulation level of supporting insulator improves greatly, and the dirty grade of resistant surpasses the IV utmost point, the highest ranking requirement of the regulation that is up to state standards.
The present invention adopts integrated control gas circuit, reduced the quantity of pipe joint and the possibility of gas leakage, has realized the stepless adjustment of compressed air inflation, exhaust velocity, has improved properties of product, has improved response speed simultaneously.The raising of opening velocity has increased high arc extinguishing ability that vacuum master breaks and has promptly increased and cut-off capacity, reaches 660MVA, substantially exceeds the 600MVA that like product can reach in the prior art.The raising of properties of product makes to allow operating voltage to reach 33kV, and the peak of power network fluctuation reaches 31.5kV at present; Filled up that the maximum permissible voltage of product is the deficiency of 30kV in the prior art.
In sum, improve mechanical endurance of the present invention, reaches more than 300,000 times; Insulation property strengthen greatly; Accelerate response speed; By the reasonable disposition of operating physical force, service speed, improve the break performance of product, reach 660MVA, intrinsic opening time is less than 30ms, and response speed is fast, can better protect locomotive equipment and personal safety.
Improvement back major parameter is:
Rated voltage: 25kV
Ceiling voltage: 33kV
The specified capacity that cut-offs: 660MVA
Specified heat-stable current: 20kA, 1s
Specified dynamic current: 50kA
Mechanical endurance: 300,000 times
Power-frequency withstand voltage: 75kV
Lightning impulse withstand voltage: 170kV
The dirty grade of resistant: IV level
Intrinsic opening time:＜30ms
Description of drawings
Fig. 1 is a vacuum circuit-breaker overall construction drawing of the present invention;
Fig. 2 is an arc control device of the present invention position structural representation;
Fig. 3 is an insulation support zone structural representation of the present invention;
Fig. 4 is a low voltage control of the present invention position structural representation.
Among the figure: 1-high voltage component, 2-insulating support member, 3-low voltage control component 4-vacuum tube, 5-composite insulator, the 6-insulating cement, 7-Anchor plate kit, 8-spring cup, 9-cushion pad, 10-switching-in spring, 11-Connection Block 12-supporting insulator, the 13-push rod that insulate, the 14-radiation fins that insulate, 15-transmission cylinder, the 16-electromagnetically operated valve, 17-stores up reservoir, the 18-pressure regulating valve, 19-fast-discharge valve, 20-electromagnetic valve coil, the 21-sensitive switch, 22-control connection device, 23-gas circuit integrated control system.
Embodiment
Embodiment 1:
A kind of vertical type column vacuum circuit-breaker, as shown in Figures 1 to 4, by folded mutually successively from top to bottom high voltage component 1, insulating support member 2, low voltage control component 3 is formed, high voltage component 1 comprises cylindric arc control device, the center coaxial package of arc control device has vacuum tube 4, vacuum tube 4 upper and lower sides are respectively equipped with quiet, moving contact, the moving contact lower end is provided with the spring mechanism that makes dynamic/static contact be in normal minute state, spring mechanism is an one three pillar type spring mechanism, it is by switching-in spring 10, the Anchor plate kit 7 that offsets with spring, have cylindrical cavity that contains switching-in spring and the Connection Block 11 that is connected with moving contact, the spring cup 8 that matches with Connection Block is formed, Anchor plate kit 7, spring cup 8 and switching-in spring 10 coaxial installations, be provided with the boss coaxial in the Connection Block, be provided with the cushion pad of making by energy-absorbing rubber 9 in the spring cup with the vacuum tube center.Vacuum tube 4 outer surfaces are with composite insulator 5, fill electrically insulating silicone rubber 6 between composite insulator 5 and the vacuum tube 4, insulating support member 2 comprises the supporting insulator 12 of cylindric band full skirt and the insulation push rod 13 of long tubular band rubber full skirt, insulation push rod 13 coaxial packages are in supporting insulator 12 centers, the inner surface of supporting insulator is cast with insulation radiation fins 14, and the metal flange outer surface of supporting insulator is coated by silastic-layer.Low voltage control component 3 is made up of controlling organization and electric component two parts, forming of controlling organization by transmission cylinder 15, electromagnetically operated valve 16, storage reservoir 17, pressure regulating valve 18, fast-discharge valve 19, electric part is made up of electromagnetic valve coil 20, sensitive switch 21, control connection device 22, and transmission cylinder 15, electromagnetically operated valve 16, storage reservoir 17, pressure regulating valve 18, fast-discharge valve 19, electromagnetic valve coil 20, sensitive switch 21,22 integration of control connection device are assembled into gas circuit integrated control system 23 and are installed on the cylinder pedestal.
The course of work of the present invention is:
Locomotive source of the gas pipeline is connected on the pressure regulating valve 18, and gas atmosphere enters the air inlet that storage reservoir 17, one road source of the gas leads to electromagnetically operated valve 16 by pressure regulating valve 18 700KPa that adjusts.The control power supply of locomotive is received on the control connection device 22, and the reclosing command on the locomotive passes on the electromagnetically operated valve 16, and electromagnetically operated valve 16 must conduct source of the gas, and source of the gas enters into transmission cylinder 15 by fast-discharge valve 19.Transmission cylinder 15 inner carrier pressurizeds are upwards passed, and by the transmission of insulation push rod 13 realizable forces, the mechanism that promotes arc control device moves with fixed contact the moving contact of vacuum tube 4 and contacts, and has realized the making process of vacuum circuit-breaker.
When locomotive provides the separating brake instruction, electromagnetically operated valve 16 dead electricity are closed source of the gas, fast-discharge valve 19 is because of the draught head action, compressed air in the transmission cylinder 15 is discharged by fast-discharge valve 19, vacuum tube 6 moving contacts are subjected to the effect of switching-in spring 10, action downwards separates vacuum tube 6 dynamic and static contacts, has realized the separating brake process of vacuum circuit-breaker.
Claims (8)
1, a kind of vacuum circuit-breaker, it is the vertical type column, by folded mutually successively from top to bottom high voltage component, insulating support member, low voltage control component is formed, described high voltage component comprises cylindric arc control device, the center coaxial package of arc control device has vacuum tube, described vacuum tube upper and lower side is respectively equipped with quiet, moving contact, the moving contact lower end is provided with the spring mechanism that makes dynamic/static contact be in normal minute state, the vacuum tube outer surface is with composite insulator, fill insulating cement between composite insulator and the vacuum tube, described insulating support member comprises the supporting insulator of cylindric band full skirt and the insulation push rod of long tubular band rubber full skirt, insulation push rod coaxial package is in the supporting insulator center, described low voltage control component is made up of controlling organization and electric component two parts, described controlling organization by the transmission cylinder, electromagnetically operated valve, the storage reservoir, pressure regulating valve, fast-discharge valve is formed, described electric part has electromagnetic valve coil, sensitive switch, the control connection device is formed, it is characterized in that: described spring mechanism is an one three pillar type spring mechanism, it is by switching-in spring, the Anchor plate kit that offsets with spring, have cylindrical cavity that contains switching-in spring and the Connection Block that is connected with moving contact, the spring cup that matches with Connection Block is formed, described Anchor plate kit, the coaxial installation of spring cup and switching-in spring.
2, vacuum circuit-breaker according to claim 1 is characterized in that: be provided with the boss coaxial with the vacuum tube center in the described Connection Block.
3, vacuum circuit-breaker according to claim 1 and 2 is characterized in that: be provided with the cushion pad of being made by energy-absorbing rubber in the described spring cup.
4, vacuum circuit-breaker according to claim 3 is characterized in that: the insulating cement of filling between described composite insulator and the vacuum tube is a silicon rubber.
5, according to each described vacuum circuit-breaker of claim 1～4, it is characterized in that: the inner surface of described supporting insulator is cast with the insulation radiation fins.
6, vacuum circuit-breaker according to claim 5 is characterized in that: the metal flange outer surface of described supporting insulator is coated by silastic-layer.
7, vacuum circuit-breaker according to claim 5 is characterized in that: described transmission cylinder, electromagnetically operated valve, storage reservoir, pressure regulating valve, fast-discharge valve, electromagnetic valve coil, sensitive switch, the integration of control connection device are assembled into the gas circuit integrated control system and are installed on the transmission cylinder pedestal.
8, vacuum circuit-breaker according to claim 6 is characterized in that: described transmission cylinder, electromagnetically operated valve, storage reservoir, pressure regulating valve, fast-discharge valve, electromagnetic valve coil, sensitive switch, the integration of control connection device are assembled into the gas circuit integrated control system and are installed on the transmission cylinder pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810143614XA CN101404228B (en) | 2008-11-14 | 2008-11-14 | Vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810143614XA CN101404228B (en) | 2008-11-14 | 2008-11-14 | Vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101404228A true CN101404228A (en) | 2009-04-08 |
| CN101404228B CN101404228B (en) | 2011-06-15 |
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ID=40538194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810143614XA Active CN101404228B (en) | 2008-11-14 | 2008-11-14 | Vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101404228B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184796A (en) * | 2011-05-13 | 2011-09-14 | 浙江华高电气有限公司 | Composite post insulator with vacuum arc extinguish chamber for high-voltage device |
| CN102368454A (en) * | 2011-10-27 | 2012-03-07 | 株洲庆云电力机车配件工厂有限公司 | Vacuum circuit breaker |
| CN107481887A (en) * | 2017-08-18 | 2017-12-15 | 株洲庆云电力机车配件工厂有限公司 | A kind of EMUs vacuum circuit breaker |
| CN108081179A (en) * | 2018-01-09 | 2018-05-29 | 广州白云电器设备股份有限公司 | The assembling jig and assembly method of frame-type circuit breaker movable contact system |
| CN108133852A (en) * | 2017-12-07 | 2018-06-08 | 北京中车赛德铁道电气科技有限公司 | A kind of vacuum circuit breaker signal feedback mechanism |
| CN112563071A (en) * | 2020-05-22 | 2021-03-26 | 中车青岛四方机车车辆股份有限公司 | Vacuum circuit breaker |
| CN108054049B (en) * | 2018-01-31 | 2023-08-01 | 大连北方真空开关有限公司 | Knife falling preventing device of high-voltage isolating switch |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024365A (en) * | 1974-11-27 | 1977-05-17 | Westinghouse Electric Corporation | Compressed-gas multiphase circuit-breaker installation |
| US4013853A (en) * | 1974-11-27 | 1977-03-22 | Westinghouse Electric Corporation | Multi-phase compressed-gas circuit-breaker construction |
| CN2221825Y (en) * | 1994-11-30 | 1996-03-06 | 大连电业局 | Vacuum circuit breaker |
| CN2488165Y (en) * | 2001-07-11 | 2002-04-24 | 株洲庆云电力机车配件工厂 | Vacuum circuit breaker |
| CN2537612Y (en) * | 2002-01-29 | 2003-02-26 | 崔德兴 | Vacuum breaker for railway power traction |
| CN201117545Y (en) * | 2007-11-15 | 2008-09-17 | 株洲九方电器设备有限公司 | Electric power locomotive engine vacuum circuit-breaker |
| CN201359957Y (en) * | 2008-11-14 | 2009-12-09 | 株洲庆云电力机车配件工厂 | Vacuum circuit breaker |
-
2008
- 2008-11-14 CN CN200810143614XA patent/CN101404228B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184796A (en) * | 2011-05-13 | 2011-09-14 | 浙江华高电气有限公司 | Composite post insulator with vacuum arc extinguish chamber for high-voltage device |
| CN102184796B (en) * | 2011-05-13 | 2014-02-05 | 浙江华高电气有限公司 | Composite post insulator with vacuum arc extinguish chamber for high-voltage device |
| CN102368454A (en) * | 2011-10-27 | 2012-03-07 | 株洲庆云电力机车配件工厂有限公司 | Vacuum circuit breaker |
| CN102368454B (en) * | 2011-10-27 | 2014-07-23 | 株洲庆云电力机车配件工厂有限公司 | Vacuum circuit breaker |
| CN107481887A (en) * | 2017-08-18 | 2017-12-15 | 株洲庆云电力机车配件工厂有限公司 | A kind of EMUs vacuum circuit breaker |
| CN108133852A (en) * | 2017-12-07 | 2018-06-08 | 北京中车赛德铁道电气科技有限公司 | A kind of vacuum circuit breaker signal feedback mechanism |
| CN108081179A (en) * | 2018-01-09 | 2018-05-29 | 广州白云电器设备股份有限公司 | The assembling jig and assembly method of frame-type circuit breaker movable contact system |
| CN108081179B (en) * | 2018-01-09 | 2023-09-19 | 广州白云电器设备股份有限公司 | Assembly fixture and assembly method for moving contact system of frame-type circuit breaker |
| CN108054049B (en) * | 2018-01-31 | 2023-08-01 | 大连北方真空开关有限公司 | Knife falling preventing device of high-voltage isolating switch |
| CN112563071A (en) * | 2020-05-22 | 2021-03-26 | 中车青岛四方机车车辆股份有限公司 | Vacuum circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101404228B (en) | 2011-06-15 |
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Owner name: ZHUZHOU QINGYUN ELECTRIC LOCOMOTIVE ACCESSORIES FA Free format text: FORMER NAME: ZHUZHOU QINGYUN ELECTRIC LOCOMOTIVE ACCESSORIES FACTORY |
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| CP01 | Change in the name or title of a patent holder |
Address after: Dong Jia Duan Taizi road 412000 Hunan province hi tech park Zhuzhou city Lusong District No. 199 Patentee after: Zhuzhou Qingyun Electric Locomotive Accessories Factory Co.,Ltd. Address before: Dong Jia Duan Taizi road 412000 Hunan province hi tech park Zhuzhou city Lusong District No. 199 Patentee before: Zhuzhou Qingyun Electric Locomotive Accessories Factory |