CN105679593A - High-voltage vacuum circuit breaker pole - Google Patents
High-voltage vacuum circuit breaker pole Download PDFInfo
- Publication number
- CN105679593A CN105679593A CN201610193932.1A CN201610193932A CN105679593A CN 105679593 A CN105679593 A CN 105679593A CN 201610193932 A CN201610193932 A CN 201610193932A CN 105679593 A CN105679593 A CN 105679593A
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- China
- Prior art keywords
- wire outlet
- outlet seat
- conductive rod
- circuit breaker
- moving conductive
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/6606—Terminal arrangements
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Breakers (AREA)
Abstract
The invention provides a high-voltage vacuum circuit breaker pole. The high-voltage vacuum circuit breaker pole includes an upper wire outgoing seat, a vacuum arc-extinguishing chamber, a moving conducting rod, a lower wire outgoing seat and a canted coil spring; a fixed end and a moving end are arranged in the vacuum arc-extinguishing chamber; the fixed end is located above the moving end; the fixed end is connected with the upper wire outgoing seat; the moving conducting rod is arranged between the vacuum arc-extinguishing chamber and the lower wire outgoing seat; the upper part of the moving conducting rod is connected with the lower part of the moving end; the lower part of the moving conducting rod is plugged into the lower wire outgoing seat; the canted coil spring is arranged in the lower wire outgoing seat and surrounds the moving conducting rod; and the lower part of the upper wire outgoing seat, the upper part of the lower wire outgoing seat and the vacuum arc-extinguishing chamber are embedded into an epoxy resin frame and are sealed by epoxy resin. According to the high-voltage vacuum circuit breaker pole of the invention, heat generated by the vacuum arc-extinguishing chamber can be rapidly transferred to the upper wire outgoing seat, the lower wire outgoing seat and an external heat radiating structure, and therefore, effective evacuation of the heat can be realized, and damage caused by temperature rise to a vacuum circuit breaker can be avoided.
Description
Technical field
The invention belongs to the technical field of vacuum interrupter, it is specifically related to a kind of high-voltage vacuum circuit breaker polar post.
Background technology
The develop rapidly of vacuum technique makes vacuum interrupter application increasingly extensive, and vacuum interrupter is primarily of conduction master loop and operating mechanism composition, and conduction master loop develops into pole type structure from open design at present. Pole is cast in by vacuum interrupter in epoxy resin solid insulating material thus forms pole, the insulating property of pole make external environment be reduced to minimum on the impact of vacuum interrupter, also the insulation strength of vacuum interrupter is substantially increased, but due at work, upper wire outlet seat, vacuum interrupter and lower wire outlet seat etc. all generate heat, and seriously affect serviceability and the work-ing life of isolating switch. Deepening continuously with people to the pay attention to day by day of environment along with what vacuum arc theoretical investigation worked, vacuum interrupter is constantly to miniaturization, Large Copacity and high-voltage development, and these all make the temperature rise in vacuum interrupter more and more higher. The quiet end of vacuum interrupter and moved end are in vacuum environment, and heat radiation only can rely on thermal conduction, and when rated current is higher, problem of temperature rise is more outstanding. Temperature rise is too high except on except the physical strength impact very greatly of conductive material, electrical conductor metal material surface is also easily made to be oxidized, the oxide compound generated makes again contact resistance increase and affect loop resistance and the electric property of isolating switch, and temperature rise simultaneously is overheated can accelerate the aging of part of insulating. Therefore must the temperature rise that causes of the heating of limiting circuit breaker each several part electrical conductor, adopt an effective measure in time and evacuate and discharge heat.
Tracing it to its cause, the loop resistance of vacuum interrupter is the main heating source affecting temperature rise, and the loop resistance of vacuum interrupter to be accounted on the 50% of total loop resistance usually, and quiet end and moved end gap-contact resistance are the main integral parts of vacuum interrupter loop resistance. In low voltage small area analysis vacuum interrupter, vacuum interrupter comprises quiet end, static conductive rod, moved end and moving conductive rod, and quiet end is contacted the heat produced and externally can only be dispelled the heat by static conductive rod and moving conductive rod with moved end.The quiet end of vacuum interrupter is directly connected with quiet support, moved end then by conductive clip, being flexible coupling is connected with dynamic support, it will be apparent that the thermally conductive pathways of moved end is longer, so the temperature rise of vacuum interrupter mainly concentrates on the overlapping part of moving conductive rod and conductive clip. Research shows, vacuum interrupter temperature rise is unrelated with contacting points position along with the increase rapid reduction of dynamic/static contact point of contact radius, but after point of contact radius increases to 2mm, it is not obvious that temperature rise reduces trend; Vacuum interrupter temperature rise reduces along with the increase of conducting rod radius, and wherein the trend of contact place decrease in temperature is the most remarkable, but after conducting rod radius increases to 25mm, it is not obvious that temperature rise reduces trend. Therefore the measure taking this kind to increase size reduction temperature rise can only obtain the effect of quite limitation. Especially for the high-voltage large current vacuum interrupter of 72.5kV voltage range, in working process, vacuum interrupter will produce a large amount of heats, and it can destroy insulation system, reduces the work-ing life of isolating switch, even causes short circuit. Therefore, improve the structure of existing pole, give its structure of more favorably dispelling the heat extremely urgent to solve the problem of temperature rise of high-voltage large current vacuum interrupter.
Summary of the invention
The present invention provides a kind of high-voltage vacuum circuit breaker polar post, the heat that vacuum interrupter produces can be conducted to rapidly upper wire outlet seat, lower wire outlet seat and heat radiation structure outside by the heat radiation structure of this high-voltage vacuum circuit breaker polar post, reach effective evacuation of heat, avoid temperature rise to cause infringement to vacuum interrupter.
The present invention adopts following technical scheme:
A kind of high-voltage vacuum circuit breaker polar post, comprise wire outlet seat, vacuum interrupter, moving conductive rod, lower wire outlet seat and fingertip spring, the inside of described vacuum interrupter is provided with quiet end and moved end and quiet end is positioned at the top of moved end, quiet end is connected with upper wire outlet seat, moving conductive rod is arranged between vacuum interrupter and lower wire outlet seat, and the bottom of the connection moved end, top of moving conductive rod, the bottom of moving conductive rod is plugged in lower wire outlet seat, and fingertip spring is arranged in lower wire outlet seat and around moving conductive rod; The bottom of described upper wire outlet seat, the top of described lower wire outlet seat and described vacuum interrupter be embedded in epoxy backbone and by epoxy resin sealing.
Above-mentioned high-voltage vacuum circuit breaker polar post, also comprise conductive graphite sheet, the middle part of described conductive graphite sheet is provided with through hole, the bottom of described moved end is formed through and stretches out the extension portion of through hole, described extension portion is connected with the top of moving conductive rod, and two ends of conductive graphite sheet are positioned at the both sides of described moving conductive rod and symmetrical the inside being fixed on lower wire outlet seat.
Above-mentioned high-voltage vacuum circuit breaker polar post, described upper wire outlet seat is not provided with scatterer on exposed part by epoxy resin sealing.
Above-mentioned high-voltage vacuum circuit breaker polar post, described lower wire outlet seat is not connected with lower insulation column on exposed part by epoxy resin sealing, and the inside of described lower insulation column is provided with insulation pull bar, and described insulation pull bar is fixedly connected on the lower end of described moving conductive rod.
Above-mentioned high-voltage vacuum circuit breaker polar post, described extension portion is provided with outside screw and is threaded by the top of outside screw with described moving conductive rod.
The useful effect of the present invention is as follows:
High-voltage vacuum circuit breaker polar post of the present invention is provided with conductive graphite sheet this kind of heat dissipation element, and conductive graphite sheet is a kind of brand-new thermally conductive material, and heat radiation efficiency height, to take space little, weight light, along two direction uniform heat conduction, eliminates " focus " region. Conductive graphite sheet also claims graphite heat radiation fin, and the important function of radiator element creates maximum effective surface area, this on the surface heat be transferred and conduct to outside. In conductive graphite sheet two dimensional plane, there is super-high heat-conductive performance, conductive graphite sheet thermal conductivity is up to 600 ~ 1000W/ (m K), its thermal conductivity is equivalent to 2 to 3 times of copper, 3 to 5 times of aluminium, and thermal impedance is lower than copper by 20%, lower than aluminium by 40%, by even heat is distributed in two dimensional planes, the uniform heat distribution making two dimensional planes whole, eliminate hot localised points, thus effectively by transfer of heat, ensure that vacuum interrupter works in the temperature range that can bear.The carbon that the chemical composition of conductive graphite sheet is mainly single is a kind of native element metal mineral. Although carbon is non-metallic element, but but there is the electrical and thermal conductivity performance of metallic substance, also there is the plasticity-as organic plastics, and also have special thermal characteristics and chemical stability, therefore, conductive graphite sheet is applied in high-voltage vacuum circuit breaker polar post of the present invention, and not only heat conduction is fast, efficiency height, and performance is very stable. In the present invention, conductive graphite sheet is from the moved end of vacuum interrupter, the inside of lower wire outlet seat is extended to via moving conductive rod, the heat that moved end produces can directly be conducted to rapidly on conductive graphite sheet by this kind of structure design, the temperature of the moved end of rapid reduction vacuum interrupter, again by conductive graphite sheet by heat conduction extremely lower wire outlet seat, thus heat is fallen apart away; Simultaneously this kind of structure design also maintains the traditional advantage of moving conductive rod heat conduction.
High-voltage vacuum circuit breaker polar post of the present invention, upper and lower wire outlet seat is provided with not exposed part by epoxy resin sealing, upper wire outlet seat, lower wire outlet seat and vacuum interrupter can be all cemented in epoxy backbone by the vacuum interrupter of general low voltage small area analysis, because its thermal value is little, substantially can ensure that temperature rise is unlikely too high by the heat radiation of static conductive rod. And for the vacuum interrupter of high-voltage large current, thermal value is relatively big, then needing outside exposed to upper wire outlet seat and lower wire outlet seat part, exposed part can play certain thermolysis, is conducive to the derivation of heat. The top of upper wire outlet seat exposed part is provided with scatterer, there is good radiating effect, in view of the thermally conductive pathways of moving conductive rod is longer, therefore the heat dissipation element of quiet end is utilized effectively to be derived by heat more, this is also the reason being arranged on upper wire outlet seat by scatterer, and the insulating property of whole vacuum interrupter also can not be impacted by this kind of installation position of scatterer in addition.
High-voltage vacuum circuit breaker polar post of the present invention, the exposed part of lower wire outlet seat is connected with lower insulation column, the inside of described lower insulation column is provided with insulation pull bar, the setting of these insulating elements makes external environment be reduced to minimum on the impact of vacuum interrupter, also substantially increases the insulation strength of vacuum interrupter; Described insulation pull bar one end connects described moving conductive rod, and the other end is connected with the operating mechanism of vacuum interrupter, sliding up and down of control moving conductive rod, thus controls the working process of vacuum interrupter. It should be noted that, the lower wire outlet seat inside of the present invention is provided with fingertip spring, fingertip spring is round moving conductive rod, can gap between flexible adjustment moving conductive rod and lower wire outlet seat by telescopic variation, gap is made to remain on suitable scope, because gap is narrow can hinder moving conductive rod sliding up and down in lower wire outlet seat inside, gap is wide, easily makes poor electric contact between moving conductive rod and lower wire outlet seat, open circuit occurs, the channel status that whole power circuit can be made to keep good is set by fingertip spring.
The extension portion of the moved end of vacuum interrupter is provided with outside screw, described conductive graphite sheet is set on this outside screw by described through hole, the upper end of moving conductive rod is provided with the threaded hole suitable with described outside screw, moving conductive rod is threaded connection and is socketed on extension portion, described conductive graphite sheet is just leaned on the contact end face of bottom, moved end by the outer circle wall of the threaded hole of moving conductive rod, end face forms good laminating to conductive graphite sheet with contacting, and is conducive to deriving the heat production of moved end.
High-voltage vacuum circuit breaker polar post of the present invention, devises multiple heat dissipation structure, mainly comprises: the exposed part of (1) upper wire outlet seat and lower wire outlet seat;(2) moving conductive rod; (3) scatterer; (4) conductive graphite sheet, such structure design make use of the heat-dissipating structure of high-voltage vacuum circuit breaker polar post body on the one hand, namely exposed part and the moving conductive rod of wire outlet seat and lower wire outlet seat is gone up, efficiently utilize the heat dissipation element that quiet end is arranged on the other hand, i.e. scatterer, what is more important has been set up conductive graphite sheet thus has been imparted the heat-sinking capability that moved end is good. The heat that vacuum interrupter produces can be conducted rapidly by this kind of multiple heat radiation structure design, the temperature of the moved end of rapid reduction vacuum interrupter, effective evacuation of heat is reached from multiple dimension degree, avoid temperature rise to cause infringement to vacuum interrupter, especially for high-voltage large current vacuum interrupter, there is very high practical value.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the structural representation of embodiment 2;
Fig. 3 is the structural representation of conductive graphite sheet in embodiment 1 and 2;
1 vacuum interrupter; 2 epoxy backbone; Wire outlet seat on 3; 4 quiet ends; 5 moved ends; 6 moving conductive rods; 7 times wire outlet seats; 8 conductive graphite sheets; 9 fingertip springs; 10 times insulation columns; 11 insulation pull bars; 12 scatterers; 13 extension portions; 14 contact end faces; 15 through holes; 16 screw mounting holes.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is made an explanation:
Embodiment 1
A kind of high-voltage vacuum circuit breaker polar post of the present invention, as shown in figs. 1 and 3, comprises wire outlet seat 3, vacuum interrupter 1, moving conductive rod 6, lower wire outlet seat 7 and fingertip spring 9. the upper end of described vacuum interrupter 1 is connected with wire outlet seat 3, lower end is connected with lower wire outlet seat 7, the inside of vacuum interrupter 1 is provided with quiet end 4 and moved end 5, quiet end 4 and moved end 5 correspondence are arranged, and quiet end 4 is positioned at the top of moved end 5, quiet end 4 is connected with upper wire outlet seat 3, the bottom of moved end 5 connects moving conductive rod 6, moving conductive rod 6 is arranged between vacuum interrupter 1 and lower wire outlet seat 7, and the bottom of the connection moved end, top 5 of moving conductive rod 6, the bottom of moving conductive rod 6 is plugged in lower wire outlet seat 7, the inside of lower wire outlet seat 7 is vertically provided with three annular recessess, three fingertip springs 9 are installed in three annular recessess and around moving conductive rod 6 respectively, the bottom of described upper wire outlet seat 3, the top of lower wire outlet seat 7 and vacuum interrupter 1 be embedded in epoxy backbone 2 and by epoxy resin sealing, upper wire outlet seat 3 and lower wire outlet seat 7 remaining be not exposed part by epoxy resin sealing. this high-voltage vacuum circuit breaker polar post also comprises conductive graphite sheet 8, conductive graphite sheet 8 for middle part be provided with through hole 15, two ends symmetrical be respectively equipped with the rectangle structure of two screw mounting holes 16. the bottom of described moved end 5 is formed through and stretches out the extension portion 13 of through hole 15, described extension portion 13 is connected with the top of moving conductive rod 6, thus conductive graphite sheet 8 is set in extension portion 13 by described through hole 15, the upper surface of conductive graphite sheet 8 is abutted against with contact end face 14 phase of bottom, moved end 5, and two ends of conductive graphite sheet 8 are positioned at the both sides of described moving conductive rod 6 and symmetrical the inside being fixed on lower wire outlet seat 7. extension portion 13 is provided with outside screw and is threaded with described moving conductive rod 6 by this outside screw. not being connected with lower insulation column 10 on exposed part by epoxy resin sealing on described lower wire outlet seat 7, the inside of described lower insulation column 10 is provided with insulation pull bar 11, and described insulation pull bar 11 is fixedly connected on the lower end of described moving conductive rod 6.
High-voltage vacuum circuit breaker polar post described in embodiment 1, devises following triple heat radiation structure, comprising: the exposed part of (1) upper wire outlet seat and lower wire outlet seat; (2) moving conductive rod; (3) conductive graphite sheet, because the thermally conductive pathways of moved end is longer, so the temperature rise of vacuum interrupter mainly concentrates on the overlapping part of moving conductive rod and conductive clip, embodiment 1 is provided with conductive graphite sheet in the both sides of moving conductive rod, can directly the heat that moved end produces be conducted to rapidly on conductive graphite sheet, the temperature of the moved end of rapid reduction vacuum interrupter, it is possible to reach effective evacuation of heat, avoid temperature rise to cause infringement to vacuum interrupter.
Embodiment 2
A kind of high-voltage vacuum circuit breaker polar post of the present invention, as shown in Figures 2 and 3, comprises wire outlet seat 3, vacuum interrupter 1, moving conductive rod 6, lower wire outlet seat 7 and fingertip spring 9. the upper end of described vacuum interrupter 1 is connected with wire outlet seat 3, lower end is connected with lower wire outlet seat 7, the inside of vacuum interrupter 1 is provided with quiet end 4 and moved end 5, quiet end 4 and moved end 5 correspondence arranges and quiet end 4 is positioned at the top of moved end 5, quiet end 4 is connected with upper wire outlet seat 3, the bottom of moved end 5 connects moving conductive rod 6, moving conductive rod 6 is arranged between vacuum interrupter 1 and lower wire outlet seat 7, the bottom of the connection moved end, top 5 of moving conductive rod 6, the bottom of moving conductive rod 6 is plugged in lower wire outlet seat 7, the inside of lower wire outlet seat 7 is vertically provided with three annular recessess, three fingertip springs 9 are installed in three annular recessess and around moving conductive rod 6 respectively, the bottom of described upper wire outlet seat 3, the top of lower wire outlet seat 7 and vacuum interrupter 1 be embedded in epoxy backbone 2 and by epoxy resin sealing, upper wire outlet seat 3 and lower wire outlet seat 7 remaining be not exposed part by epoxy resin sealing. this high-voltage vacuum circuit breaker polar post also comprises conductive graphite sheet 8, conductive graphite sheet 8 for middle part be provided with through hole 15, two ends symmetrical be respectively equipped with the rectangle structure of two screw mounting holes 16. the bottom of described moved end 5 is formed through and stretches out the extension portion 13 of through hole 15, described extension portion 13 is connected with the top of moving conductive rod 6, thus conductive graphite sheet 8 is set in extension portion 13 by described through hole 15, the upper surface of conductive graphite sheet 8 is abutted against with contact end face 14 phase of the bottom of moved end 5, and two ends of conductive graphite sheet 8 are positioned at the both sides of described moving conductive rod 6 and symmetrical the inside being fixed on lower wire outlet seat 7. extension portion 13 is provided with outside screw and is threaded with described moving conductive rod 6 by this outside screw. not being connected with lower insulation column 10 on exposed part by epoxy resin sealing on described lower wire outlet seat 7, the inside of described lower insulation column 10 is provided with insulation pull bar 11, and described insulation pull bar 11 is fixedly connected on the lower end of described moving conductive rod 6. described upper wire outlet seat 3 is not provided with scatterer 12 on exposed part by epoxy resin sealing, not being connected with lower insulation column 10 on exposed part by epoxy resin sealing on described lower wire outlet seat 7, the inside of described lower insulation column 10 is provided with insulation pull bar 11, and described insulation pull bar 11 is fixedly connected on the bottom of described moving conductive rod 6.
High-voltage vacuum circuit breaker polar post described in embodiment 2, devises quadruple heat radiation structure, comprising: the exposed part of (1) upper wire outlet seat and lower wire outlet seat; (2) moving conductive rod; (3) scatterer; (4) conductive graphite sheet, compared with embodiment 1, embodiment 2 efficiently utilizes the heat dissipation element that quiet end is arranged, i.e. scatterer, adds the evacuation outlet of heat.
The above, be only the better embodiment of the present invention, therefore can not limit scope of the invention process with this, and the equivalence namely done according to the present patent application patent scope and description changes and modifies, and all should still remain within the scope of the patent.
Claims (5)
1. a high-voltage vacuum circuit breaker polar post, comprise wire outlet seat, vacuum interrupter, moving conductive rod, lower wire outlet seat and fingertip spring, it is characterized in that: the inside of described vacuum interrupter is provided with quiet end and moved end and quiet end is positioned at the top of moved end, quiet end is connected with upper wire outlet seat, moving conductive rod is arranged between vacuum interrupter and lower wire outlet seat, and the bottom of the connection moved end, top of moving conductive rod, the bottom of moving conductive rod is plugged in lower wire outlet seat, and fingertip spring is arranged in lower wire outlet seat and around moving conductive rod; The bottom of described upper wire outlet seat, the top of described lower wire outlet seat and described vacuum interrupter be embedded in epoxy backbone and by epoxy resin sealing.
2. high-voltage vacuum circuit breaker polar post according to claim 1, it is characterized in that: also comprise conductive graphite sheet, the middle part of described conductive graphite sheet is provided with through hole, the bottom of described moved end is formed through and stretches out the extension portion of through hole, described extension portion is connected with the top of moving conductive rod, and two ends of conductive graphite sheet are positioned at the both sides of described moving conductive rod and symmetrical the inside being fixed on lower wire outlet seat.
3. high-voltage vacuum circuit breaker polar post according to claim 1 and 2, it is characterised in that: described upper wire outlet seat is not provided with scatterer on exposed part by epoxy resin sealing.
4. high-voltage vacuum circuit breaker polar post according to claim 3, it is characterized in that: described lower wire outlet seat is not connected with lower insulation column on exposed part by epoxy resin sealing, the inside of described lower insulation column is provided with insulation pull bar, and described insulation pull bar is fixedly connected on the lower end of described moving conductive rod.
5. high-voltage vacuum circuit breaker polar post according to claim 2, it is characterised in that: described extension portion is provided with outside screw and is threaded by the top of outside screw with described moving conductive rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193932.1A CN105679593B (en) | 2016-03-31 | 2016-03-31 | A kind of high-voltage vacuum circuit breaker polar post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193932.1A CN105679593B (en) | 2016-03-31 | 2016-03-31 | A kind of high-voltage vacuum circuit breaker polar post |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105679593A true CN105679593A (en) | 2016-06-15 |
| CN105679593B CN105679593B (en) | 2017-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610193932.1A Expired - Fee Related CN105679593B (en) | 2016-03-31 | 2016-03-31 | A kind of high-voltage vacuum circuit breaker polar post |
Country Status (1)
| Country | Link |
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| CN (1) | CN105679593B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109461620A (en) * | 2018-05-24 | 2019-03-12 | 许继集团有限公司 | A kind of arc-chutes radiator structure of vacuum circuit breaker |
| CN109616370A (en) * | 2018-12-11 | 2019-04-12 | 天津平高智能电气有限公司 | A kind of pole and vacuum circuit breaker |
| CN111630619A (en) * | 2017-12-15 | 2020-09-04 | 西门子股份公司 | High-voltage circuit breaker and method for holding a vacuum interrupter in a high-voltage circuit breaker |
| CN112582204A (en) * | 2020-12-04 | 2021-03-30 | 河南平高通用电气有限公司 | Arc extinguish chamber unit for gas-filled cabinet |
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| CN2896498Y (en) * | 2006-04-18 | 2007-05-02 | 叶炳凤 | Fixing-packing type high-pressure vacuum circuit-breaker polar column |
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| CN203351492U (en) * | 2013-06-18 | 2013-12-18 | 浙江麦格电气有限公司 | High-voltage vacuum circuit breaker |
| CN105428142A (en) * | 2015-11-23 | 2016-03-23 | 天津平高智能电气有限公司 | Circuit breaker and solid-sealed pole thereof |
| CN205487914U (en) * | 2016-03-31 | 2016-08-17 | 许昌永新电气股份有限公司 | Polar column for high -voltage vacuum circuit -breaker |
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Patent Citations (5)
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| CN2896498Y (en) * | 2006-04-18 | 2007-05-02 | 叶炳凤 | Fixing-packing type high-pressure vacuum circuit-breaker polar column |
| WO2012142739A1 (en) * | 2011-04-18 | 2012-10-26 | Abb Technology Ltd. | Contact arm for switch device and circuit breaker thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111630619A (en) * | 2017-12-15 | 2020-09-04 | 西门子股份公司 | High-voltage circuit breaker and method for holding a vacuum interrupter in a high-voltage circuit breaker |
| CN111630619B (en) * | 2017-12-15 | 2024-04-05 | 西门子能源全球有限公司 | High-voltage power switch and method for holding a vacuum switching tube |
| CN109461620A (en) * | 2018-05-24 | 2019-03-12 | 许继集团有限公司 | A kind of arc-chutes radiator structure of vacuum circuit breaker |
| CN109616370A (en) * | 2018-12-11 | 2019-04-12 | 天津平高智能电气有限公司 | A kind of pole and vacuum circuit breaker |
| CN109616370B (en) * | 2018-12-11 | 2020-06-09 | 天津平高智能电气有限公司 | Solid-sealed pole and vacuum circuit breaker |
| CN112582204A (en) * | 2020-12-04 | 2021-03-30 | 河南平高通用电气有限公司 | Arc extinguish chamber unit for gas-filled cabinet |
| CN112582204B (en) * | 2020-12-04 | 2024-04-02 | 河南平高通用电气有限公司 | Arc extinguishing chamber unit for gas-filled cabinet |
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|---|---|
| CN105679593B (en) | 2017-12-29 |
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Granted publication date: 20171229 Termination date: 20190331 |