CN2817041Y - Multiple-speed disjunction contact for super-high-voltage switch - Google Patents
Multiple-speed disjunction contact for super-high-voltage switch Download PDFInfo
- Publication number
- CN2817041Y CN2817041Y CN 200520086645 CN200520086645U CN2817041Y CN 2817041 Y CN2817041 Y CN 2817041Y CN 200520086645 CN200520086645 CN 200520086645 CN 200520086645 U CN200520086645 U CN 200520086645U CN 2817041 Y CN2817041 Y CN 2817041Y
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- contact
- fixed contact
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- insulating cylinder
- moving
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a multiple-speed breaking contact of a super high-voltage switch for electric devices, which comprises an insulating cylinder, wherein the inner part of the insulating cylinder is provided with a fixed contact and a moving contact, the fixed contact is connected with the insulating cylinder through a spring, the contact surface between the fixed contact and the moving contact is provided with load fixed contacts and arcing contacts, and blocking steps for block the movement of the fixed contacts are arranged on an inner wall of the insulating cylinder. The fixed contact of the breaking contact are skillfully designed into a telescopic spring form, and the arc time is short when the action of breaking is carried out, so that the breaking capacity and the service life of the devices can be effectively enhanced.
Description
Technical field
The utility model relates to the double-speed segmented contact of ultrahigh voltage that a kind of power equipment uses.
Background technology
The power equipment switch all needs break contact, The faster the better, the time is short more good more to require breaking speed when using as high-voltage switch gear, because the moving contact of high-voltage switch gear and fixed contact are easy to generate electric arc in the time of approaching, the time of the fast more generation electric arc of speed is short more, and is more little to the infringement of equipment.Existing high-voltage switch gear break contact is made up of moving contact and fixed contact, fixed contact is fixedly mounted in the insulation cavity, moving contact is hinged on the insulated tension pole, the speed of related movement of moving contact and fixed contact depends on the movement velocity of insulated tension pole, in order to improve the breaking speed of switch, has only the movement velocity that improves insulated tension pole, and this can increase substantially production cost power consumption then, the movement velocity of insulated tension pole can cause bigger motion impulsive force again after improving simultaneously, influences the useful life of equipment.
Summary of the invention
The purpose of this utility model provides a kind of reliable, with low cost, double-speed segmented contact of ultrahigh voltage that breaking speed is fast rational in infrastructure.
For achieving the above object, the utility model adopts following technical scheme:
Double-speed segmented contact of ultrahigh voltage described in the utility model comprises insulating cylinder and the fixed contact and the moving contact that are arranged in the insulating cylinder, be connected by spring between fixed contact and the insulating cylinder, have the load fixed contact on fixed contact and the contact-making surface that moving contact contacts, have on the inwall of insulating cylinder and be used to stop the step that stops that fixed contact moves.
Fixed contact has the fixed contact base of plate-like, has air vent hole on the fixed contact base, and the center of fixed contact base has the arcing contact of column, and a plurality of load fixed contacts distribute around the base; Correspondingly, moving contact has the moving contact base of plate-like, have an arc blow-out pipe that runs through wherein on the moving contact base, the center of moving contact has the moving contact arcing contact corresponding with the arcing contact of fixed contact, is distributed with the load moving contact corresponding with the load fixed contact around the moving contact arcing contact.
Above-mentioned fixed contact is fixedly mounted on the end of fixed contact conducting rod, be provided with supporting bracket in the insulating cylinder, have pilot hole on the supporting bracket, the fixed contact conducting rod is installed in this pilot hole, be installed with spring base on the fixed contact conducting rod, spring is a stage clip, is sleeved on the fixed contact conducting rod, between spring base and supporting bracket.
Above-mentioned fixed contact is fixedly mounted on the end of fixed contact conducting rod, is provided with supporting bracket in the insulating cylinder, has pilot hole in the middle of the supporting bracket, and the fixed contact conducting rod is installed in this pilot hole, and spring is extension spring, is connected between supporting bracket and the fixed contact.
After adopting technique scheme, double-speed segmented contact of ultrahigh voltage described in the utility model has following advantage:
1, whole contact is installed in the insulating cylinder, and is simple and reliable for structure, volume is little.
2, during the switch disjunction, the arcing time is short, and arc extinguishing speed is fast, can effectively increase the service life.
3, be widely used, can be used for each electricity and plant gas-insulated switch, GIS combined electrical apparatus and other high-voltage switch gears.
4, the load electric current is big, disjunction power height, the single break breaking capacity with spread the structure comparison and can improve more than 40%, can satisfy the requirement of ultra high voltage switch performances.
5, separating brake power is low, can effectively reduce the operating mechanism volume, improves action sensitivity.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model;
Fig. 2 is the structural representation of another embodiment.
Embodiment
As shown in Figure 1, double-speed segmented contact of ultrahigh voltage described in the utility model comprises insulating cylinder 7 and the fixed contact 3 that is arranged in the insulating cylinder 7, be connected by spring 2 between fixed contact 3 and the insulating cylinder 7, have load fixed contact 5 on fixed contact 3 and the contact-making surface that moving contact 14 contacts, have on the inwall of insulating cylinder 7 and be used to stop that fixed contact 3 moves stops step 21.Fixed contact 3 has discoid fixed contact base, has through hole on the fixed contact base, and the center of fixed contact base has the arcing contact of column, and a plurality of load fixed contacts 5 distribute around the base; Correspondingly, moving contact 14 has discoid moving contact base, have an arc blow-out pipe 4 that runs through wherein on the moving contact base, the upper end of arc blow-out pipe 4 is towards the arcing contact of fixed contact 3, the center of moving contact 14 has the moving contact arcing contact corresponding with the arcing contact of fixed contact 3, is distributed with the load moving contact corresponding with load fixed contact 5 around the moving contact arcing contact.
Fixed contact 3 is fixedly mounted on the end of fixed contact conducting rod 10, and fixed contact conducting rod 10 is electrically connected with conducting rod 19 by the soft contact 9 of fixed contact elasticity.Be provided with supporting bracket 12 in the insulating cylinder 7, have pilot hole in the middle of the supporting bracket 12, fixed contact conducting rod 10 is installed in this pilot hole, be installed with spring base 22 on the fixed contact conducting rod 10, spring 2 is a stage clip, is sleeved on the fixed contact conducting rod 10, between spring base 22 and supporting bracket 12.On fixed contact conducting rod 10, molecular sieve 11 can also be installed, be used to filter insulating gas.
Moving contact 14 is fixedly mounted on the end of moving contact conducting rod 16, and moving contact conducting rod 16 is connected with the disjunction operating mechanism by insulating bar 17, and is electrically connected with power circuit by the soft contact 20 of moving contact elasticity.
As shown in Figure 2, spring 2 also can adopt extension spring.At this moment, fixed contact 3 is fixedly mounted on the end of fixed contact conducting rod 10, is provided with supporting bracket 12 in the insulating cylinder 7, have pilot hole in the middle of the supporting bracket 12, fixed contact conducting rod 10 is installed in this pilot hole, and spring 2 is sleeved on the fixed contact conducting rod 10, is connected between supporting bracket 12 and the fixed contact 3.
Switch is initially at "on" position, when receiving sub-gate signal, operating mechanism drive insulated tension pole 17 is to the motion of separating brake direction and drive moving contact conducting rod 16, moving contact 14 moves together, and fixed contact 3 produces frictional force and moves to the separating brake direction between moving contact under moving contact 14 each contact elastic force effect.Meanwhile, as shown in Figure 1, spring 2 is compressed under the effect of fixed contact conducting rod, and when the lower end of fixed contact 3 moves to when stopping step 21 places, fixed contact 3 is just no longer to the motion of separating brake direction, and moving contact 14 continues to move to the separating brake direction.At first disconnect load fixed contact 5 afterwards, after moving contact 14 moved down a segment distance, arcing contact 13 began to disconnect and electrogenesis electric arc.At this moment, moving contact 14 continues quick when the separating brake direction is moved, and rapidly to motion in the other direction, at this moment the speed of related movement between two contacts is higher than the movement velocity of moving contact 4 far away to fixed contact 3 under spring 2 effects, reaches doubly speed.Thereby electric arc is extinguished at short notice.Arcing time reduces about 1 times than simple only cut-offfing by moving contact 14, extinguishes back switch disjunction and finishes, and fixed contact 3 resets simultaneously.
Behind the switch separating brake, when receiving when closing a floodgate order, operating mechanism drives moving contact conducting rod 16 by insulating bar 17 and moves to the combined floodgate direction, drives fixed contact 14 again and moves to the combined floodgate direction.Move and successively moving contact 14 and arcing contact 13 and load fixed contact 5 are inserted fixed contacts 3 behind the segment distance, realize closing a floodgate.The combined floodgate after-current is by conducting rod 19, the soft contact 9 of fixed contact elasticity, fixed contact conducting rod 10, load fixed contact 5, moving contact 14, moving contact conducting rod 16, and the soft contact 20 of moving contact elasticity is realized open-minded.
When being used for gas-insulated switch, can realize that also self-produced gases at high pressure assist arc extinguishing, as shown in Figure 1, when moving contact 14 when the separating brake direction is moved, the piston that the base of moving contact 14 forms produces gases at high pressure and sprays to the upper end of arcing contact 13 by arc blow-out pipe 4 in insulating cylinder 7, put out certainly thereby electric arc is elongated.Simultaneously, the inner chamber 15 of moving contact 14 is subjected to the high arc temperature effect, the generation expanding gas is also blown in arc control device, make electric arc produce vertical disjunction again, each arc extinguishing all will produce a certain amount of high pressure exhaust gas in the arc control device, to outdiffusion, molecular sieve 11 can remove the impurity in the gas these waste gas by molecular sieve 11, and making extremely, gas repeatedly recycles.
Claims (4)
1, double-speed segmented contact of ultrahigh voltage, comprise insulating cylinder (7) and be arranged on fixed contact (3) and moving contact (14) in the insulating cylinder (7), it is characterized in that: be connected by spring (2) between fixed contact (3) and the insulating cylinder (7), have load fixed contact (5) on fixed contact (3) and the contact-making surface that moving contact (14) contacts, have on the inwall of insulating cylinder (7) and be used to stop that fixed contact (3) moves stops step (21).
2, double-speed segmented contact of ultrahigh voltage according to claim 1, it is characterized in that: fixed contact (3) has the fixed contact base of plate-like, have air vent hole on the fixed contact base, the center of fixed contact base has the arcing contact of column, and a plurality of load fixed contacts (5) distribute around the base; Correspondingly, moving contact (14) has the moving contact base of plate-like, have an arc blow-out pipe (4) that runs through wherein on the moving contact base, the center of moving contact (14) has the moving contact arcing contact corresponding with the arcing contact of fixed contact (3), is distributed with the load moving contact corresponding with load fixed contact (5) around the moving contact arcing contact.
3, double-speed segmented contact of ultrahigh voltage according to claim 1 and 2, it is characterized in that: fixed contact (3) is fixedly mounted on the end of fixed contact conducting rod (10), be provided with supporting bracket (12) in the insulating cylinder (7), supporting bracket (12) has pilot hole, fixed contact conducting rod (10) is installed in this pilot hole, be installed with spring base (22) on the fixed contact conducting rod (10), spring (2) is a stage clip, be sleeved on the fixed contact conducting rod (10), be positioned between spring base (22) and the supporting bracket (12).
4, double-speed segmented contact of ultrahigh voltage according to claim 1 and 2, it is characterized in that: fixed contact (3) is fixedly mounted on the end of fixed contact conducting rod (10), be provided with supporting bracket (12) in the insulating cylinder (7), have pilot hole in the middle of the supporting bracket (12), fixed contact conducting rod (10) is installed in this pilot hole, spring (2) is extension spring, is connected between supporting bracket (12) and the fixed contact (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086645 CN2817041Y (en) | 2005-08-26 | 2005-08-26 | Multiple-speed disjunction contact for super-high-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086645 CN2817041Y (en) | 2005-08-26 | 2005-08-26 | Multiple-speed disjunction contact for super-high-voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2817041Y true CN2817041Y (en) | 2006-09-13 |
Family
ID=36996851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520086645 Expired - Fee Related CN2817041Y (en) | 2005-08-26 | 2005-08-26 | Multiple-speed disjunction contact for super-high-voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2817041Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332350A (en) * | 2014-11-17 | 2015-02-04 | 河南平高电气股份有限公司 | Circuit breaker and circuit breaker contact centering support device |
| CN106682305A (en) * | 2016-12-26 | 2017-05-17 | 中国西电电气股份有限公司 | Method for reducing transient impact load of switch operating mechanism insulating pull rod |
-
2005
- 2005-08-26 CN CN 200520086645 patent/CN2817041Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332350A (en) * | 2014-11-17 | 2015-02-04 | 河南平高电气股份有限公司 | Circuit breaker and circuit breaker contact centering support device |
| CN104332350B (en) * | 2014-11-17 | 2016-05-25 | 河南平高电气股份有限公司 | A kind of breaker and contact of breaker centering bracing or strutting arrangement |
| CN106682305A (en) * | 2016-12-26 | 2017-05-17 | 中国西电电气股份有限公司 | Method for reducing transient impact load of switch operating mechanism insulating pull rod |
| CN106682305B (en) * | 2016-12-26 | 2019-10-29 | 中国西电电气股份有限公司 | A method of reducing switch operation mechanism insulated pull rod transient impact load |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |