CN202651038U - Self-driven arc extinguishing chamber for double acting type high voltage SF6 breaker - Google Patents
Self-driven arc extinguishing chamber for double acting type high voltage SF6 breaker Download PDFInfo
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- CN202651038U CN202651038U CN 201220320549 CN201220320549U CN202651038U CN 202651038 U CN202651038 U CN 202651038U CN 201220320549 CN201220320549 CN 201220320549 CN 201220320549 U CN201220320549 U CN 201220320549U CN 202651038 U CN202651038 U CN 202651038U
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- extinguishing chamber
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Abstract
The utility model relates to a self-driven arc extinguishing chamber for a double acting type high voltage SF6 breaker, comprising mutually-cooperated upper contact system and lower contact system, wherein inside the upper contact system, a lever passing through an axle pin covers onto an upper contact support, one end of the lever is connected with a shifting fork on an upper arc contact rod through a lever pin, an upper arc contact is electrically connected with the upper contact support; and inside the lower contact system, a pull rod is connected with the transmission crankarm of an operating mechanism through an insulating pull rod, and a lower arc contact fixed at the top end of the pull rod is electrically connected with a lower contact support. The self-driven arc extinguishing chamber for a double acting type high voltage SF6 breaker enables the upper and lower contacts to oppositely move when being turned off, thereby increasing rigid separation speed, ensuring heavy-current turn-off, and simultaneously ensuring light-current turn-off without repeated breakdown. The operating power of a breaker only corresponds to 1/2 of the operating power of a single acting type breaker, thereby greatly reducing the operating power of the operating mechanism, such that the operating power of the double acting type high voltage SF6 breaker is reduced to be 1/9 of the operating power of a pneumatic breaker, thereby ensuring the turn-on and turn-off performance of the breaker.
Description
Technical field
The utility model relates to a kind of circuit breaker self-energy extinguishing chamber, especially a kind of double movement high voltage SF6 circuit breaker self-energy extinguishing chamber.
Background technology
High-voltage sf6 circuit breaker be a kind of with SF6 gas as the insulation and arc-extinguishing medium, in ultra-high-tension power transmission line, can close and close, carry, cut-off the operating loop normal current, also can close at the appointed time the switchgear that closes, carries and cut-off the short circuit current of regulation.It is mainly used in the control and protection of transmission line, and arc control device are the core component of high-voltage sf6 circuit breaker practical function, has air pressing type and self extinguishing type not by arc quenching principle.
SF6 gas when the air pressing type arc control device cut-off in the pressured contractive pressure cylinder is blown out electric arc to produce air-flow, has increased like this mechanically actuated operation merit, often wants the large and baroque heavy operating mechanism of adapted operating work, such as hydraulic pressure and pneumatic mechanism.According to twice worldwide investigation of international conference on large HV electric systems, these two kinds of mechanisms are the first causes that cause circuit breaker failure.So people's broad research the Novel arc extinguishing chamber of not adopting machinery to calm the anger. comprise and utilize revolving arc formula arc control device and utilizing the thermally expansive arc control device of electric arc heat energy of electromagnetic force, but the SF6 circuit breaker more than 72.5kV, arc control device need not machinery be calmed the anger obtain sufficiently high performance, that is difficult, particularly when cut-offfing little electric current. feasible way is self energy arc blow-out and machinery to be calmed the anger combine.Therefore thermal expansion with help the self-energy extinguishing chamber that blows ingenious combination just to arise at the historic moment.
Existing high-voltage sf6 circuit breaker self-energy arc-extinguishing chamber is generally two single-lift structures of air chamber one single piston.This arc control device are comprised of thermal expansion chamber and the plenum chamber of moving contact side.The Pneumatic pipe cleaner of thermal expansion chamber is crossed from the air-flow inflow in arc district and is increased.The volume of calming the anger that is positioned at behind the thermal expansion chamber is thermal expansion chamber supplying compressed gas at the beginning of cut-offfing.The air pressure of volume is subject to from the control of slotted eye or valve exhaust because calm the anger, and can reduce operating work so compare the air pressing type arc control device.But the spring operating mechanism that adapted is simple in structure, but because arc control device are still continued to use the single-lift structure contact system of the static other end motion of air pressing type arc control device one end, the required contact opening velocity of electric arc disjunction still drives the movable contact head end by operating mechanism fully and obtains, though the operating work of operating mechanism has minimizing but be also still bigger than normal like this, thereby have influence on the reliability of adapted mechanism.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of double movement high voltage SF6 circuit breaker self-energy extinguishing chamber, can solve existing arc control device operating mechanism operating work problem bigger than normal, greatly reduced the operating work of operating mechanism, guaranteed that the pass of circuit breaker is closed and break performance.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of double movement high voltage SF6 circuit breaker self-energy extinguishing chamber, and it comprises upper contact head system and the lower contact system that cooperatively interacts,
In the upper contact head system, the lever by pivot pin is enclosed within on the upper contact head support, and lever one end is connected upper arcing contact and the electrical connection of upper contact head support by lever pin with shift fork on the upper arcing contact bar;
In the lower contact system, pull bar is connected with the transmission crank arm of operating mechanism by insulated tension pole, is fixed on lower arcing contact and the electrical connection of lower contact supporting on pull bar top.
The spout that is fixed on lower contact supporting top is positioned at the top of lower arcing contact, and upper mounting flange and lower mounting flange are clamped on the spout, and lower mounting flange place is provided with shielding, and drive link is connected pin and is connected with upper mounting flange with guide post, and drive link is provided with roller.
Upper arcing contact is by contact in the middle of upper and the electrical connection of upper contact head support.
Lower arcing contact keeps electrical connection by contact in the middle of lower and lower contact supporting.
The double movement high voltage SF6 circuit breaker self-energy extinguishing chamber that the utility model provides, owing to adopt arcing contact, lower arcing contact when cut-offfing, to do the two moving structure of rightabout motion at existing pair of air chamber one single piston self-energy arc-extinguishing chamber architecture basics, improved just-off speed, guarantee high-current on-off, can guarantee that little electric current cut-offs the nothing bang and wears simultaneously.1/2 of the operating work of a circuit breaker quite single-lift structure circuit breaker, this has just greatly reduced the operating work of operating mechanism, and operating work is kept to 1/9 of air pressing type structure circuit breaker, has guaranteed that the pass of circuit breaker is closed and break performance.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit breaker view of the present utility model during from open position to closing position.
Embodiment
As shown in Figure 1, the utility model comprises upper contact head system and the lower contact system that cooperatively interacts,
In the upper contact head system, the lever 2 by pivot pin 3 is enclosed within on the upper contact head support 1, and lever 2 one ends are connected with shift fork 6 on the upper arcing contact bar by lever pin 4, and upper arcing contact 12 and upper contact head support 1 are electrically connected;
In the lower contact system, pull bar 18 is connected with the transmission crank arm 20 of operating mechanism by insulated tension pole 19, is fixed on the lower arcing contact 13 and lower contact supporting 17 electrical connections on pull bar 18 tops.
The spout 11 that is fixed on lower contact supporting 17 tops is positioned at the top of lower arcing contact 13, upper mounting flange 14 and lower mounting flange 15 are clamped on the spout 11, lower mounting flange 15 places are provided with shielding 16, drive link 8 is connected with guide post and is connected with upper mounting flange 14 by pin 10, and drive link 8 is provided with roller 5.
Upper arcing contact 12 is by contact in the middle of upper 9 and 1 electrical connection of upper contact head support.
Lower arcing contact 13 keeps electrical connection by contact in the middle of lower and lower contact supporting 17.
Circuit breaker view of the present utility model during from open position to closing position, when circuit breaker was in open position, all below cylinder, upper arcing contact 12 was positioned at extreme lower position for lower arcing contact 13 and spout 11.When circuit breaker closes a floodgate under operating mechanism drives, in transmission crank arm 20, insulated tension pole 19 and pull bar 18 drive lower contact system and move upward, lower contact system moves to that roller 5 on the drive link 8 contacts with the notch of the lever 2 of upper contact head system and when inserting notch, lever 2 begins around pivot pin 3 rotations, lever pin 4 on the other end of lever 2 promotes the shift fork 6 that connects on the arcing contact bar simultaneously, thereby arcing contact 12 is done the counter motion with lower contact system downwards in the drive, namely form two moving structures, upper arcing contact and lower arcing contact are done rightabout motion simultaneously, fully reach to improve the up and down purpose of the relative velocity of arcing contact.
When contact system lever 2 notches that move to roller 5 and upper contact head system on the drive link 8 disengaged instantly, lever 2 stopped the rotation around pivot pin 3, and then upper arcing contact 12 stop motions descend contact system to continue to move to closing position.
Breaker open operation operation and above-mentioned closing operation roughly the same, but the direction of motion is opposite.
The counter motion of upper arcing contact 12 and lower contact system through calculation Design on closing operation during arcing contact 12 and the prebreakdown before lower arcing contact 13 contact with sub-switching operation on during the arcing after arcing contact 12 and 13 disengagements of lower arcing contact in, upper arcing contact 12 provides condition with lower arcing contact 13 relative velocities for arc extinction during this, thereby close and break performance the pass that has guaranteed circuit breaker.
Claims (4)
1. double movement high voltage SF6 circuit breaker self-energy extinguishing chamber, it is characterized in that: it comprises upper contact head system and the lower contact system that cooperatively interacts,
In the upper contact head system, the lever (2) by pivot pin (3) is enclosed within on the upper contact head support (1), and lever (2) one ends are connected with shift fork (6) on the upper arcing contact bar by lever pin (4), and upper arcing contact (12) and upper contact head support (1) are electrically connected;
In the lower contact system, pull bar (18) is connected with the transmission crank arm (20) of operating mechanism by insulated tension pole (19), is fixed on the lower arcing contact (13) and lower contact supporting (17) electrical connection on pull bar (18) top.
2. double movement high voltage SF6 circuit breaker self-energy extinguishing chamber according to claim 1, it is characterized in that: the spout (11) that is fixed on lower contact supporting (17) top is positioned at the top of lower arcing contact (13), upper mounting flange (14) and lower mounting flange (15) are clamped on the spout (11), lower mounting flange (15) locates to be provided with shielding (16), drive link (8) is connected 7 with guide post) be connected with upper mounting flange (14) by pin (10), drive link (8) is provided with roller (5).
3. double movement high voltage SF6 circuit breaker self-energy extinguishing chamber according to claim 1 and 2 is characterized in that: upper arcing contact (12) is by contact (9) in the middle of upper and upper contact head support (1) electrical connection.
4. double movement high voltage SF6 circuit breaker self-energy extinguishing chamber according to claim 1 and 2 is characterized in that: lower arcing contact (13) keeps being electrically connected by contact in the middle of lower and lower contact supporting (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320549 CN202651038U (en) | 2012-07-04 | 2012-07-04 | Self-driven arc extinguishing chamber for double acting type high voltage SF6 breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320549 CN202651038U (en) | 2012-07-04 | 2012-07-04 | Self-driven arc extinguishing chamber for double acting type high voltage SF6 breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651038U true CN202651038U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320549 Expired - Fee Related CN202651038U (en) | 2012-07-04 | 2012-07-04 | Self-driven arc extinguishing chamber for double acting type high voltage SF6 breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202651038U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531410A (en) * | 2012-07-04 | 2014-01-22 | 乐星湖开电气（湖北）有限公司 | Self-driven arc extinguishing chamber for double acting type high voltage SF6 breaker |
| WO2022121874A1 (en) * | 2020-12-09 | 2022-06-16 | 平高集团有限公司 | Double-acting arc-extinguishing chamber transmission structure |
-
2012
- 2012-07-04 CN CN 201220320549 patent/CN202651038U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531410A (en) * | 2012-07-04 | 2014-01-22 | 乐星湖开电气（湖北）有限公司 | Self-driven arc extinguishing chamber for double acting type high voltage SF6 breaker |
| CN103531410B (en) * | 2012-07-04 | 2016-06-01 | 湖北湖开电气有限公司 | Double movement high voltage SF6 isolating switch self-energy extinguishing chamber |
| WO2022121874A1 (en) * | 2020-12-09 | 2022-06-16 | 平高集团有限公司 | Double-acting arc-extinguishing chamber transmission structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 443004 No. 100 Tan Tan Road, Point Military Area, Yichang, Hubei Patentee after: Hubei Hukai Switch Electric Co., Ltd. Address before: 443004 No. 100 Tan Tan Road, Point Military Area, Yichang, Hubei Patentee before: Happy lake open electric (Hubei) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190813 Address after: 238300 Wuwei Economic Development Zone Chengdong Park, Wuhu City, Anhui Province Patentee after: Angao Electric Co., Ltd. Address before: 443004 No. 100 Tan Tan Road, Point Military Area, Yichang, Hubei Patentee before: Hubei Hukai Switch Electric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20210704 |