CN104124102A - Novel alternating-current high-voltage vacuum circuit breaker for electrified railway - Google Patents
Novel alternating-current high-voltage vacuum circuit breaker for electrified railway Download PDFInfo
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- CN104124102A CN104124102A CN201410296862.3A CN201410296862A CN104124102A CN 104124102 A CN104124102 A CN 104124102A CN 201410296862 A CN201410296862 A CN 201410296862A CN 104124102 A CN104124102 A CN 104124102A
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- trolley frame
- circuit breaker
- permanent magnet
- chassis
- vacuum interrupter
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Abstract
The invention discloses a novel alternating-current high-voltage vacuum circuit breaker for an electrified railway. The novel alternating-current high-voltage vacuum circuit breaker comprises a trolley frame, a current transformer, a permanent-magnet mechanism and a vacuum arc-extinguishing chamber, wherein the trolley frame is composed of a chassis and a support located at the right end of the chassis; the current transformer is located at the left end of the chassis of the trolley frame, the vacuum arc-extinguishing chamber is arranged above the current transformer, the upper end and the lower end of the vacuum arc-extinguishing chamber are connected with one end of a support insulator respectively, and the other end of the support insulator is fixedly connected to the bracket of the trolley frame; a wire incoming plate and a wire outgoing plate are arranged above and below the vacuum arc-extinguishing chamber; the permanent-magnet mechanism is located on the bracket of the trolley frame, and connected with a movable contact on the vacuum arc-extinguishing chamber through an insulation operation rod. According to the novel alternating-current high-voltage vacuum circuit breaker disclosed by the invention, the bi-stable permanent-magnet mechanism is used as an operation control mechanism, thus greatly reducing the quantity of the parts of the circuit breaker, improving the reliability of the circuit breaker, reducing the fault rate, and improving the power supply reliability.
Description
Technical field
The invention belongs to field of circuit breakers, refer to especially a kind of Novel electric electrified railway AC high voltage vacuum breaker.
Background technology
Since U.S. GE Developed First vacuum circuit-breaker in 1961, the technical merit of vacuum circuit-breaker is improved rapidly.Along with the development of novel contact configurations and new material, the connecting-disconnecting function of vacuum circuit-breaker constantly promotes, and is applied to more and more widely electric power system, and is keeping leading position in middle pressure field as the switch of controlling and distribute electric energy to use.
Vacuum circuit-breaker, due to the impayable characteristic of its vacuum extinction, increases its electrical endurance greatly.Its mechanical endurance, the mechanical performance of the operating mechanism being therefore mated and reliability just became comparatively distinct issues from traditional increasing in a leap as several ten thousand times for 2,000 times.And as main element---the operating mechanism of vacuum circuit-breaker, also gone through the development of several generations, from initial electromagnetic mechanism, develop into the spring operating mechanism of present extensive use, and present stage the ripe and universal permanent-magnet operating mechanism progressively of just marching toward.
Early stage electromagnetic mechanism, due to harsher to power requirement, when operation, impulse current is large, operating time is long, need special large capacity power source screen power supply, thereby eliminated by market gradually, the substitute is spring operating mechanism, it utilizes universal motor to carry out energy pre-storage to spring, utilize that spring can divide, closing operation, low to power requirement, alternating current-direct current all can operate, power supply, without impact, had therefore been used widely in recent years.But spring mechanism also has himself unsurmountable shortcoming: number of spare parts is many, requires machining accuracy high, manufacturing process complexity, cost is high, and product reliability is difficult for ensureing.Research shows, the failure rate of switchgear and the quantity of its part are directly proportional, spring operating mechanism complex structure, number of spare parts many (being about 200).Electromagnetic operating mechanism structure is relatively simple, number of spare parts few (being about 120), but the power that closing coil consumes is too large, requires user to be equipped with expensive batteries, adds the structure heaviness of electromagnetic mechanism, and operate time is longer, so progressively eliminated.
Summary of the invention
The object of this invention is to provide a kind of Novel electric electrified railway AC high voltage vacuum breaker, it adopts bistable-state permanent magnet mechanism as operation controlling organization, has greatly reduced the number of components of circuit breaker, has improved the reliability of circuit breaker, reduce failure rate, improve power supply reliability.
A kind of Novel electric electrified railway AC high voltage vacuum breaker of the present invention, comprises trolley frame, current transformer, permanent magnet mechanism and vacuum interrupter; Described trolley frame is by chassis and be positioned at being configured to of chassis right-hand member; Described current transformer is positioned on the left end on trolley frame chassis, and the top of current transformer is provided with vacuum interrupter, and the two ends up and down of vacuum interrupter connect respectively one end of supporting insulator, and the other end of supporting insulator is fixedly connected on the support of trolley frame; The upper and lower of vacuum interrupter is provided with inlet wire plate and outlet board; Described permanent magnet mechanism is positioned on the support of trolley frame, and is connected with the moving contact on vacuum interrupter by insulating bar.
Further improve, described permanent magnet mechanism adopts bistable state operation controlling organization, comprise moving iron core, permanent magnet, closing coil, switching winding and static iron core, described moving iron core is positioned at the center of this mechanism, the right and left of moving iron core is provided with static iron core, closing coil is positioned at the bottom of static core, and switching winding is positioned at the top of static core, and permanent magnet is positioned at the centre of closing coil and switching winding.
Further improve, large aluminium radiator is equipped with in described vacuum interrupter top and the bottom.
Beneficial effect of the present invention is:
Substitute traditional electromagnetic operating mechanism and the vacuum circuit-breaker of spring operating mechanism with it, because part is few, debugging convenient, failure rate is low, substantially can reach few maintenance or non-maintaining, bring a lot of convenience to on-the-spot use, greatly reduce on-the-spot maintenance and adjusted workload, improved the reliability of power supply.Large aluminium radiator is equipped with in vacuum interrupter top and the bottom, and the heating requirement when ensureing vacuum interrupter long-term work improves reliability.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of permanent magnet mechanism.
Embodiment
As shown in Figure 1, a kind of Novel electric electrified railway AC high voltage vacuum breaker of the present invention, comprises trolley frame 1, current transformer 2, permanent magnet mechanism 3 and vacuum interrupter 4; Described trolley frame 1 is by chassis and be positioned at being configured to of chassis right-hand member; Described current transformer 2 is positioned on the left end on trolley frame 1 chassis, the top of current transformer 2 is provided with vacuum interrupter 4, the two ends up and down of vacuum interrupter 4 connect respectively one end of supporting insulator 5, and the other end of supporting insulator 5 is fixedly connected on the support of trolley frame 1; The upper and lower of vacuum interrupter 4 is provided with inlet wire plate 6 and outlet board 7; Described permanent magnet mechanism 3 is positioned on the support of trolley frame, and is connected with the moving contact on vacuum interrupter 4 by insulating bar 8.
As shown in Figure 2, described permanent magnet mechanism 3 adopts bistable state operation controlling organization, comprise moving iron core 9, permanent magnet 10, closing coil 11, switching winding 12 and static iron core 13, described moving iron core 9 is positioned at the center of this mechanism, the right and left of moving iron core 9 is provided with static iron core 13, closing coil 11 is positioned at the bottom of static core 13, and switching winding 12 is positioned at the top of static core 13, and permanent magnet 10 is positioned at the centre of closing coil 11 and switching winding 12.
Large aluminium radiator is equipped with in described vacuum interrupter 4 top and the bottom.
The invention provides a kind of Novel electric electrified railway AC high voltage vacuum breaker; the above is only preferred implementation method of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvement, these improve and also should be considered as protection scope of the present invention.
Claims (3)
1. a Novel electric electrified railway AC high voltage vacuum breaker, is characterized in that, comprises trolley frame (1), current transformer (2), permanent magnet mechanism (3) and vacuum interrupter (4); Described trolley frame (1) is by chassis and be positioned at being configured to of chassis right-hand member; Described current transformer (2) is positioned on the left end on trolley frame (1) chassis, the top of current transformer (2) is provided with vacuum interrupter (4), the two ends up and down of vacuum interrupter (4) connect respectively one end of supporting insulator (5), and the other end of supporting insulator (5) is fixedly connected on the support of trolley frame (1); The upper and lower of vacuum interrupter (4) is provided with inlet wire plate (6) and outlet board (7); Described permanent magnet mechanism (3) is positioned on the support of trolley frame, and is connected with the moving contact on vacuum interrupter (4) by insulating bar (8).
2. Novel electric electrified railway AC high voltage vacuum breaker according to claim 1, it is characterized in that, described permanent magnet mechanism (3) adopts bistable state operation controlling organization, comprise moving iron core (9), permanent magnet (10), closing coil (11), switching winding (12) and static iron core (13), described moving iron core (9) is positioned at the center of this mechanism, the right and left of moving iron core (9) is provided with static iron core (13), closing coil (11) is positioned at the bottom of static core (13), switching winding (12) is positioned at the top of static core (13), permanent magnet (10) is positioned at the centre of closing coil (11) and switching winding (12).
3. Novel electric electrified railway AC high voltage vacuum breaker according to claim 1, is characterized in that, large aluminium radiator is equipped with in described vacuum interrupter (4) top and the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410296862.3A CN104124102A (en) | 2014-06-28 | 2014-06-28 | Novel alternating-current high-voltage vacuum circuit breaker for electrified railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410296862.3A CN104124102A (en) | 2014-06-28 | 2014-06-28 | Novel alternating-current high-voltage vacuum circuit breaker for electrified railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104124102A true CN104124102A (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410296862.3A Pending CN104124102A (en) | 2014-06-28 | 2014-06-28 | Novel alternating-current high-voltage vacuum circuit breaker for electrified railway |
Country Status (1)
| Country | Link |
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| CN (1) | CN104124102A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599892A (en) * | 2014-11-28 | 2015-05-06 | 湖南长高高压开关集团股份公司 | All-condition intelligent embedded pole type high voltage AC vacuum circuit breaker |
| CN112735899A (en) * | 2020-12-24 | 2021-04-30 | 四川电器集团中低压智能配电有限公司 | Intelligent circuit breaker |
-
2014
- 2014-06-28 CN CN201410296862.3A patent/CN104124102A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599892A (en) * | 2014-11-28 | 2015-05-06 | 湖南长高高压开关集团股份公司 | All-condition intelligent embedded pole type high voltage AC vacuum circuit breaker |
| CN112735899A (en) * | 2020-12-24 | 2021-04-30 | 四川电器集团中低压智能配电有限公司 | Intelligent circuit breaker |
| CN112735899B (en) * | 2020-12-24 | 2023-07-14 | 四川电器集团中低压智能配电有限公司 | Intelligent circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141029 |
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| WD01 | Invention patent application deemed withdrawn after publication |