CN102354632A - Vacuum interrupter and vacuum circuit breaker using same - Google Patents
Vacuum interrupter and vacuum circuit breaker using same Download PDFInfo
- Publication number
- CN102354632A CN102354632A CN2011103216644A CN201110321664A CN102354632A CN 102354632 A CN102354632 A CN 102354632A CN 2011103216644 A CN2011103216644 A CN 2011103216644A CN 201110321664 A CN201110321664 A CN 201110321664A CN 102354632 A CN102354632 A CN 102354632A
- Authority
- CN
- China
- Prior art keywords
- contact
- conducting rod
- vacuum interrupter
- vacuum
- going
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention relates to a vacuum interrupter and a vacuum circuit breaker using the same. The vacuum interrupter comprises an upper contactor which consists of an upper end main contactor and an upper arc contactor, and a lower contactor which consists of a lower end main contactor and a lower arc contact; the upper arc contactor and the lower arc contactor are made of contactor materials with fusion welding resistance; the upper arc contactor is connected with the upper end main contactor through an upper conductive rod, and the lower arc contactor is fixed on the lower end main contactor; the upper arc contactor is fixed at one end of the upper conductive rod, and the lower end main contactor is fixed at one end of the lower conductive rod; the upper conductive rod is conducted to the upper end main contactor through a watchband contact finger; a spacing cushion is arranged at the upper end of the upper conductive rod; and a contactor spring is arranged on the spacing cushion. The invention further relates to a vacuum circuit breaker using the vacuum interrupter, wherein the vacuum circuit breaker is switched on and off by operating an operation mechanism. With the adoption of the structure of the vacuum interrupter provided by the invention, the burning loss of the surfaces of the contactors is reduced, and the heavy punch-through phenomenon is eliminated; and meanwhile, the vacuum interrupter is capable of interrupting and bearing large current.
Description
Technical field
The present invention relates to high voltage electrical apparatus technical field, especially relate to a kind of be used to control and protect electric power system high-pressure vacuum breaker vacuum arc extinguish chamber structure and adopt the vacuum circuit-breaker of this vacuum interrupter.
Background technology
In the High-Voltage Electrical Appliances field, high-pressure vacuum breaker is the core component in the high-voltage switch gear the complete sets of equipment, is the electric equipment that is used to control and protect electric power system.And vacuum interrupter through the action of high-pressure vacuum breaker operating mechanism, is controlled the indoor connection between contact, the disconnection up and down of vacuum extinction as the core component of high-pressure vacuum breaker, thereby close and turn-off current realization circuit breaker pass.
The structure of at present common vacuum interrupter as shown in Figure 1.Visible by Fig. 1, the shell of vacuum interrupter by porcelain shell 101, be fixed on upper end metal sealing ring 104 and the lower end metal sealing ring 105 on the porcelain shell 101 and the upper end cover 109 and the bottom end cover 110 that connect with said upper end metal sealing ring 104 and lower end metal sealing ring 105 are respectively formed.Be provided with conducting rod 120 and following conducting rod 122 in the enclosure.Wherein, an end of last conducting rod 120 and upper end cover 109 are fixing, and the other end is provided with upper contact head 136; One end of following conducting rod 202 is provided with down contact 138, and the other end slides through lower end fairlead 106 and passes the through hole of bottom end cover 110.Simultaneously, also be provided with bellows 131 down on the conducting rod 122 down, following conducting rod 122 is connected on the bottom end cover 110 through following bellows 131.Following bellows 131 has scalability, the indoor sealing of vacuum extinction in the time of can guaranteeing down contact 138 and 122 motions of following conducting rod.The end that following conducting rod 122 stretches out bottom end cover 110 links to each other with the insulated tension pole 107 of vacuum circuit-breaker through contact spring 140, and is connected on the breaker operation mechanism 150.In addition, be provided with bellows shield cover 132 down outside the bellows 131 down, and outside upper contact head 136 and following contact 138, be provided with main shield cover 130.
When this vacuum interrupter is applied in the high-pressure vacuum breaker; When breaker closing; The operating mechanism 150 of circuit breaker drives down through insulated tension pole 107 and contact spring 140, and conducting rod 122 moves upward with following contact 138 together; Causing down, contact 138 contacts with upper contact head 136; Contact spring 140 is compressed the generation contact pressure subsequently, makes the jam plate of operating mechanism 150 fasten the completion combined floodgate and make circuit breaker remain on "on" position.When operating mechanism 150 carried out the separating brake action, upper contact head 136 was opened with following contact in 138 minutes, made circuit breaker accomplish separating brake.
When capacitive load is closed in the pass, generally can produce several times to tens times inrush phenomenon, cause melting welding, the scaling loss of contact, thereby produce molten spot, tip in contact surface up and down; After higher recovery voltage occurring between contact, field emission will take place and cause fracture to puncture in these tips when separating brake.And this bang of high-pressure vacuum breaker is worn, and will cause the overvoltage of electric power system, thereby causes the damage of power equipment.
Summary of the invention
In view of the problems referred to above that exist in the prior art; A main purpose of the present invention provides a kind of vacuum interrupter of novel high-pressure vacuum breaker and adopts the vacuum circuit-breaker of this vacuum interrupter; Making up and down when being implemented in the vacuum circuit-breaker combined floodgate, thereby arcing contact closes the scaling loss of minimizing inrush phenomenon to contact surface earlier; And utilize parallelly connected principle of transfer to make cut-offfing of big current load by main contact completion up and down; Thereby avoid high-pressure vacuum breaker re-breakdown phenomenon when disjunction capacity current and inductance current, to occur, reduce damage power equipment.In addition, vacuum circuit-breaker of the present invention has the ability of cut-offfing with bearing great current simultaneously.
To achieve these goals, the present invention has adopted following technical proposals:
A kind of vacuum interrupter; Comprise porcelain shell and the upper end metal sealing ring and the lower end metal sealing ring that are fixed on porcelain shell two ends; Be provided with conducting rod and following conducting rod in the porcelain shell; It is characterized in that: said vacuum interrupter also comprises upper contact head and following contact; Wherein said upper contact head is made up of upper end main contact and last arcing contact, and said contact down is made up of lower end main contact and following arcing contact; The said arcing contact of going up is connected with said upper end main contact through the said conducting rod of going up, and said arcing contact down is fixed on the main contact of said lower end; A said end of going up conducting rod is fixed with said upward arcing contact, and the said other end of going up conducting rod passes through hole through the slip of upper end fairlead; A said end of conducting rod down is fixed with said lower end main contact, and the other end of said conducting rod down passes lower through-hole through the slip of lower end fairlead.
The said outer setting that goes up conducting rod has last bellows, and the said bellows of going up is outside equipped with the bellows shield cover; The wherein said conducting rod of going up is connected with said upper end main contact through the said bellows of going up.The said conducting rod of going up is provided with the watchband fingertip, and the said conducting rod of going up is through said watchband fingertip and the main contact conducting of said upper end.The upper end of conducting rod is provided with spacing pad on said, be used for cooperating with the upper end of said vacuum interrupter carry out spacing; And said spacing pad is provided with the upper contact head spring.Said upper contact head spring is provided with spring cup, and said spring cup is used for said upper contact head spring is pressed in said upper end main contact.Said upward arcing contact and following arcing contact adopt the contact material of anti-melting welding.Said upper end metal sealing ring is connected with said upper end main contact; And said lower end metal sealing ring connects with bottom end cover.Said conducting rod down passes through down, and bellows links to each other with said bottom end cover.
The present invention also provides a kind of vacuum circuit-breaker, and said vacuum circuit-breaker comprises operating mechanism, accomplishes the combined floodgate and the separating brake of said vacuum circuit-breaker through operating said operating mechanism.Said vacuum circuit-breaker comprises aforesaid vacuum interrupter.In one embodiment, following conducting rod links to each other with said operating mechanism through the insulated tension pole that has the main contact spring.
Compared with prior art, vacuum interrupter of the present invention and adopt the vacuum circuit-breaker of this vacuum interrupter mainly to have following advantage:
1) reduces the scaling loss of inrush phenomenon to contact surface;
2) can not produce the tip in contact surface, eliminate the appearance of re-breakdown phenomenon when cut-offfing capacity current and inductance current; And
3) has the ability of cut-offfing simultaneously with bearing great current.
Description of drawings
Embodiment below reading in conjunction with the drawings can be understood the present invention better.Wherein:
Fig. 1 is the structural representation of vacuum interrupter in the prior art.
Fig. 2 is the sketch map of vacuum interrupter of the present invention in "on" position.
Fig. 3 is the sketch map of vacuum interrupter of the present invention at gate-dividing state.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment to vacuum interrupter of the present invention and adopt the vacuum circuit-breaker of this vacuum interrupter to do further to describe in detail.
Referring to Fig. 2-3; The shell of vacuum interrupter of the present invention is fixed on upper end metal sealing ring 204 and lower end metal sealing ring 205 and upper end main contact 360 that connects with said upper end metal sealing ring 204 and lower end metal sealing ring 205 respectively and bottom end cover 210 compositions on the porcelain shell 201 by porcelain shell 201.Be provided with main shield cover 230 in the porcelain shell, and in porcelain shell 201, be provided with conducting rod 220 and following conducting rod 222.One end of last conducting rod 220 is fixed with arcing contact 362, and the through hole 223 (promptly going up through hole) of main contact 360 on upward the other end of conducting rod 220 passes through 213 slips of upper end fairlead.Last conducting rod 220 is connected with upper end main contact 360 through being arranged on its outside last bellows 260, and through watchband fingertip 270 and 360 conductings of upper end main contact.The quantity that should be pointed out that said watchband fingertip 270 can be selected on demand.Can see bellows shield cover 261 on last bellows 260 outer setting have by Fig. 2-3.One end of following conducting rod 222 is fixed with lower end main contact 380, and the other end of following conducting rod 222 passes the through hole 225 (being lower through-hole) of bottom end cover 210 through 215 slips of lower end fairlead.Bellows 262 linked to each other with bottom end cover 210 under following conducting rod 222 passed through, wherein bellows shield cover 263 under bellows 262 is outside equipped with down.In the present embodiment, upper contact head 236 is made up of upper end main contact 360 and last arcing contact 362, and contact 238 is made up of lower end main contact 380 and following arcing contact 382 down.As stated, last arcing contact 362 is fixed on an end (being the lower end in the drawings) of conducting rod 220.Following arcing contact 382 is fixed on the lower end main contact 380, and lower end main contact 380 then is fixed on down an end (being the upper end in the drawings) of conducting rod 222.
Can see that from Fig. 2-3 upper end of the last conducting rod 220 of vacuum interrupter is provided with spacing pad 285, spacing pad 285 is provided with upper contact head spring 280.Spring cup 290 is pressed in upper contact head spring 280 on the main contact 360 of upper end.Following conducting rod 222 links to each other with breaker operation mechanism 250 through the insulated tension pole 207 that has main contact spring 240.
Turn to the course of action of high-pressure vacuum breaker of the present invention now.Referring to Fig. 2; When the vacuum circuit breaker carries out closing operation; Under the drive of operating mechanism 250, following conducting rod 222, lower end main contact 380 move upward the direction motion of upper contact head 236 (promptly towards) together with arcing contact 382 down, contact with last arcing contact 362 until arcing contact 382 down.Following arcing contact 382 moves upward with last arcing contact 362 with continuing after last arcing contact 362 contacts; The upper contact head spring 280 of conducting rod 220 upper ends is compressed; Main contact 360 begins to contact with lower end main contact 380 up to the upper end; Main contact spring 240 begins to be compressed, and reliable closed under the effect of contact pressure.This moment, big electric current was basically by upper end main contact 360 and 380 carryings of lower end main contact.
Referring to Fig. 3; When high-pressure vacuum breaker carries out sub-switching operation; The decrement of main contact spring 240 is released; Following conducting rod 222, lower end main contact 380 move downward under the drive of operating mechanism 250 together with arcing contact 382 down, thereby the decrement of the upper contact head spring 280 of conducting rod 220 upper ends is released.At this moment; Last conducting rod 220 drives upward, and arcing contact 362 moves downward with following arcing contact 382; Cause upper end main contact 360 to separate with lower end main contact 380; Still be in conducting state and go up arcing contact 362 with following arcing contact 382, make that up to the spacing back of the spacing pad 285 and the last end in contact of vacuum interrupter going up conducting rod 220 stops to move downward with last arcing contact 362.At this moment, following conducting rod 222, lower end main contact 380 and following arcing contact 382 continue under the drive of operating mechanism 250, to move downward, and be spacing up to separating brake, accomplishes the separating brake action of circuit breaker.
In the combined floodgate of above-mentioned circuit breaker, separating brake process, electric arc only burns on last arcing contact 362 and following arcing contact 382.Here; Because last arcing contact 362 and following arcing contact 382 all adopt the contact material of anti-melting welding; CuCr50 for example; Make that the contact surface scaling loss is lighter; And contact surface can not produce the tip; Thereby eliminated the appearance of re-breakdown phenomenon when cut-offfing perception and capacity current, improved the break performance of circuit breaker simultaneously.
The present invention is not limited to above-mentioned preferred implementation, those skilled in the art can instruction according to the present invention to vacuum interrupter of the present invention and adopt the vacuum circuit-breaker of these arc control device to make various modifications and variation.All such modifications all should drop within protection scope of the present invention with changing.Though most preferred embodiment of the present invention shown in the drawings, in practical application, vacuum interrupter of the present invention and adopt the vacuum circuit-breaker of this vacuum interrupter not necessarily to comprise the characteristic that all have illustrated fully.Therefore, protection scope of the present invention should be definite by most preferred embodiment of the present invention, and should confirm according to the content of appended claims.
Claims (10)
1. a vacuum interrupter comprises porcelain shell and the upper end metal sealing ring and the lower end metal sealing ring that are fixed on porcelain shell two ends, is provided with conducting rod and following conducting rod in the porcelain shell, it is characterized in that:
Said vacuum interrupter also comprises upper contact head and following contact, and wherein said upper contact head is made up of upper end main contact and last arcing contact, and said contact down is made up of lower end main contact and following arcing contact; The said arcing contact of going up is connected with said upper end main contact through the said conducting rod of going up, and said arcing contact down is fixed on the main contact of said lower end;
A said end of going up conducting rod is fixed with said upward arcing contact, and the said other end of going up conducting rod passes through hole through the slip of upper end fairlead;
A said end of conducting rod down is fixed with said lower end main contact, and the other end of said conducting rod down passes lower through-hole through the slip of lower end fairlead.
2. vacuum interrupter according to claim 1 is characterized in that: the said outer setting that goes up conducting rod has last bellows, and the said bellows of going up is outside equipped with the bellows shield cover; The wherein said conducting rod of going up is connected with said upper end main contact through the said bellows of going up.
3. vacuum interrupter according to claim 2 is characterized in that: the said conducting rod of going up is provided with the watchband fingertip, and the said conducting rod of going up is through said watchband fingertip and the main contact conducting of said upper end.
4. vacuum interrupter according to claim 3 is characterized in that: the upper end of conducting rod is provided with spacing pad on said, be used for cooperating with the upper end of said vacuum interrupter carry out spacing; And said spacing pad is provided with the upper contact head spring.
5. vacuum interrupter according to claim 4 is characterized in that: said upper contact head spring is provided with spring cup, and said spring cup is used for said upper contact head spring is pressed in said upper end main contact.
6. vacuum interrupter according to claim 5 is characterized in that: said upward arcing contact and following arcing contact adopt the contact material of anti-melting welding.
7. vacuum interrupter according to claim 6 is characterized in that: said upper end metal sealing ring is connected with said upper end main contact; And said lower end metal sealing ring connects with bottom end cover.
8. vacuum interrupter according to claim 7 is characterized in that: bellows linked to each other with said bottom end cover under conducting rod passed through under said.
9. a vacuum circuit-breaker comprises operating mechanism, accomplishes the combined floodgate and the separating brake of said vacuum circuit-breaker through operating said operating mechanism, and it is characterized in that: said vacuum circuit-breaker comprises according to the described vacuum interrupter of arbitrary claim among the claim 1-8.
10. vacuum circuit-breaker according to claim 9 is characterized in that: following conducting rod links to each other with said operating mechanism through the insulated tension pole that has the main contact spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103216644A CN102354632A (en) | 2011-10-20 | 2011-10-20 | Vacuum interrupter and vacuum circuit breaker using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103216644A CN102354632A (en) | 2011-10-20 | 2011-10-20 | Vacuum interrupter and vacuum circuit breaker using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102354632A true CN102354632A (en) | 2012-02-15 |
Family
ID=45578172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103216644A Pending CN102354632A (en) | 2011-10-20 | 2011-10-20 | Vacuum interrupter and vacuum circuit breaker using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102354632A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367024A (en) * | 2013-06-17 | 2013-10-23 | 北海银河产业投资股份有限公司 | Double contact of vacuum arc extinguishing chamber |
| CN103515139A (en) * | 2013-09-23 | 2014-01-15 | 西安交通大学 | Vacuum arc-extinguishing chamber composite contact structure and arc-extinguishing chamber suitable for capacity current connecting and disconnecting |
| CN103871775A (en) * | 2012-12-14 | 2014-06-18 | 伊顿公司 | Vacuum arc extinguish chamber and vacuum breaker with same |
| CN105977094A (en) * | 2016-07-14 | 2016-09-28 | 许继集团有限公司 | Bounce-free plug-in type vacuum arc-extinguishing chamber |
| CN107170637A (en) * | 2017-07-04 | 2017-09-15 | 合肥东玖电气有限公司 | A kind of vacuum circuit breaker |
| CN107170640A (en) * | 2017-07-04 | 2017-09-15 | 合肥东玖电气有限公司 | One kind can survey vacuum vacuum circuit breaker |
| CN109192601A (en) * | 2018-09-29 | 2019-01-11 | 杭州佰盟智能开关有限公司 | A kind of breaker closing spring secondary buffer device |
| CN109616373A (en) * | 2018-12-12 | 2019-04-12 | 西安交通大学 | A kind of vacuum interrupter composite contact, vacuum interrupter and vacuum circuit breaker |
| CN110168690A (en) * | 2016-10-14 | 2019-08-23 | 施恩禧电气公司 | Electrical breaks device |
| CN111463061A (en) * | 2019-01-21 | 2020-07-28 | 国家电网有限公司 | Vacuum arc-extinguishing chamber and vacuum circuit breaker |
| CN111952111A (en) * | 2020-08-04 | 2020-11-17 | 山东普益电气有限公司 | Double-fracture quick vacuum arc extinguish chamber |
| CN112735901A (en) * | 2020-12-01 | 2021-04-30 | 平高集团有限公司 | Vacuum arc-extinguishing chamber with composite contact structure |
| CN117810019A (en) * | 2024-02-28 | 2024-04-02 | 浙江昶科陶瓷新材料有限公司 | Ceramic vacuum circuit breaker |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2805059Y (en) * | 2005-04-08 | 2006-08-09 | 王政 | Vacuum arc-shutes contact device having main contact and arc contact |
| CN101101832A (en) * | 2007-08-07 | 2008-01-09 | 苑舜 | High capacity vacuum load switch |
| CN201060786Y (en) * | 2007-07-06 | 2008-05-14 | 北京京东方真空电器有限责任公司 | Vacuum switch and vacuum switch tube |
| CN201440395U (en) * | 2009-07-03 | 2010-04-21 | 北京华东森源电气有限责任公司 | Vacuum arc extinguish chamber and main circuit structure using same |
| CN201877351U (en) * | 2010-12-15 | 2011-06-22 | 北京京东方真空电器有限责任公司 | Vacuum switching tube |
| CN102184795A (en) * | 2011-04-12 | 2011-09-14 | 浙宝开关(杭州)有限公司 | Fast vacuum circuit breaker used for protecting high-power power electronic converter |
| CN202307674U (en) * | 2011-10-20 | 2012-07-04 | 北京华东森源电气有限责任公司 | Vacuum arc extinguish chamber and vacuum breaker using same |
-
2011
- 2011-10-20 CN CN2011103216644A patent/CN102354632A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2805059Y (en) * | 2005-04-08 | 2006-08-09 | 王政 | Vacuum arc-shutes contact device having main contact and arc contact |
| CN201060786Y (en) * | 2007-07-06 | 2008-05-14 | 北京京东方真空电器有限责任公司 | Vacuum switch and vacuum switch tube |
| CN101101832A (en) * | 2007-08-07 | 2008-01-09 | 苑舜 | High capacity vacuum load switch |
| CN201440395U (en) * | 2009-07-03 | 2010-04-21 | 北京华东森源电气有限责任公司 | Vacuum arc extinguish chamber and main circuit structure using same |
| CN201877351U (en) * | 2010-12-15 | 2011-06-22 | 北京京东方真空电器有限责任公司 | Vacuum switching tube |
| CN102184795A (en) * | 2011-04-12 | 2011-09-14 | 浙宝开关(杭州)有限公司 | Fast vacuum circuit breaker used for protecting high-power power electronic converter |
| CN202307674U (en) * | 2011-10-20 | 2012-07-04 | 北京华东森源电气有限责任公司 | Vacuum arc extinguish chamber and vacuum breaker using same |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871775A (en) * | 2012-12-14 | 2014-06-18 | 伊顿公司 | Vacuum arc extinguish chamber and vacuum breaker with same |
| CN103871775B (en) * | 2012-12-14 | 2016-05-11 | 伊顿公司 | Vacuum interrupter and the vacuum circuit breaker with vacuum interrupter |
| CN103367024B (en) * | 2013-06-17 | 2016-03-30 | 北海银河产业投资股份有限公司 | The two contact of vacuum interrupter |
| CN103367024A (en) * | 2013-06-17 | 2013-10-23 | 北海银河产业投资股份有限公司 | Double contact of vacuum arc extinguishing chamber |
| CN103515139A (en) * | 2013-09-23 | 2014-01-15 | 西安交通大学 | Vacuum arc-extinguishing chamber composite contact structure and arc-extinguishing chamber suitable for capacity current connecting and disconnecting |
| CN103515139B (en) * | 2013-09-23 | 2016-05-04 | 西安交通大学 | Be applicable to vacuum interrupter composite contact structure and arc-chutes that capacity current cut-offs |
| CN105977094A (en) * | 2016-07-14 | 2016-09-28 | 许继集团有限公司 | Bounce-free plug-in type vacuum arc-extinguishing chamber |
| CN110168690A (en) * | 2016-10-14 | 2019-08-23 | 施恩禧电气公司 | Electrical breaks device |
| CN110168690B (en) * | 2016-10-14 | 2022-04-05 | 施恩禧电气公司 | Electrical interruption device |
| CN107170640A (en) * | 2017-07-04 | 2017-09-15 | 合肥东玖电气有限公司 | One kind can survey vacuum vacuum circuit breaker |
| CN107170637A (en) * | 2017-07-04 | 2017-09-15 | 合肥东玖电气有限公司 | A kind of vacuum circuit breaker |
| CN109192601A (en) * | 2018-09-29 | 2019-01-11 | 杭州佰盟智能开关有限公司 | A kind of breaker closing spring secondary buffer device |
| CN109616373A (en) * | 2018-12-12 | 2019-04-12 | 西安交通大学 | A kind of vacuum interrupter composite contact, vacuum interrupter and vacuum circuit breaker |
| CN111463061A (en) * | 2019-01-21 | 2020-07-28 | 国家电网有限公司 | Vacuum arc-extinguishing chamber and vacuum circuit breaker |
| CN111952111A (en) * | 2020-08-04 | 2020-11-17 | 山东普益电气有限公司 | Double-fracture quick vacuum arc extinguish chamber |
| CN112735901A (en) * | 2020-12-01 | 2021-04-30 | 平高集团有限公司 | Vacuum arc-extinguishing chamber with composite contact structure |
| CN117810019A (en) * | 2024-02-28 | 2024-04-02 | 浙江昶科陶瓷新材料有限公司 | Ceramic vacuum circuit breaker |
| CN117810019B (en) * | 2024-02-28 | 2024-05-10 | 浙江昶科陶瓷新材料有限公司 | Ceramic vacuum circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102354632A (en) | Vacuum interrupter and vacuum circuit breaker using same | |
| CN100555496C (en) | High capacity vacuum load switch | |
| CN202307674U (en) | Vacuum arc extinguish chamber and vacuum breaker using same | |
| CN201667312U (en) | Solid-sealed pole structure of high-voltage vacuum circuit breaker | |
| CN103594280B (en) | The vacuum circuit-breaker of a kind of NEW TYPE OF COMPOSITE contact vacuum interrupter and application thereof | |
| CN201440395U (en) | Vacuum arc extinguish chamber and main circuit structure using same | |
| CN102184795A (en) | Fast vacuum circuit breaker used for protecting high-power power electronic converter | |
| CN106783373B (en) | A kind of vacuum interrupter with dynamic main contac and moving arcing contact | |
| CN201956269U (en) | Rapid permanent magnetic vacuum switch | |
| WO2020151464A1 (en) | Vacuum arc extinguishing chamber and vacuum circuit breaker | |
| CN101527220B (en) | Isolating switch with quick break function | |
| CN201084635Y (en) | A large-capacity vacuum load switch | |
| CN100454462C (en) | Very high breaker in use for GIS | |
| CN201877351U (en) | Vacuum switching tube | |
| CN104465256B (en) | Arc extinguishing chamber for isolation breaker and isolation breaker comprising same | |
| CN202230939U (en) | Novel vacuum switch tube | |
| CN201060786Y (en) | Vacuum switch and vacuum switch tube | |
| CN201765985U (en) | Resistor step-down arc-suppression button switch | |
| CN102290284B (en) | Novel vacuum switch tube | |
| CN203562365U (en) | Composite contact vacuum arc-extinguishing chamber and vacuum circuit breaker with same | |
| CN107622908B (en) | Movable double-loop contact structure and vacuum arc-extinguishing chamber | |
| CN102290278B (en) | Arc striking device for electric switch equipment | |
| CN201392768Y (en) | High-voltage vacuum circuit breaker | |
| CN200986885Y (en) | Extra-high voltage circuit breaker for GIS | |
| CN203910651U (en) | Novel vacuum circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120215 |