CN201717185U - Moving contact device of indoor high-voltage vacuum circuit breaker - Google Patents
Moving contact device of indoor high-voltage vacuum circuit breaker Download PDFInfo
- Publication number
- CN201717185U CN201717185U CN2010201997414U CN201020199741U CN201717185U CN 201717185 U CN201717185 U CN 201717185U CN 2010201997414 U CN2010201997414 U CN 2010201997414U CN 201020199741 U CN201020199741 U CN 201020199741U CN 201717185 U CN201717185 U CN 201717185U
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- China
- Prior art keywords
- moving contact
- cover body
- circuit breaker
- vacuum circuit
- indoor high
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- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a moving contact device of an indoor high-voltage vacuum circuit breaker, which comprises a moving contact and a contact arm integrated with the moving contact. An insulating shield made of insulating material is sleeved on the moving contact. After the insulating shield made of organic insulating material is arranged on the moving contact, the arc flash distance between electrodes is greatly increased; the arc flash voltage value is increased, the insulating level is correspondingly increased, the insulating degree is increased, and the safety and the reliability is ensured during running of the product.
Description
Technical field
The utility model relates to a kind of indoor high-voltage vacuum circuit breaker trigger device.
Background technology
In each links such as the generating of 12kV～40.5kV electrical power trans mission/distribution system, transmission of electricity, distribution, vacuum circuit-breaker is extensive use of, because the requirement of environment for use, as altitude environment, need carry out the adjustment of some structural adjustments, particularly insulation system, reach the purpose that improves insulation level.At present domestic and international product ubiquitous problem on insulation system, the one, because the requirement of product miniaturization, arc dodges apart from less than normal between indoor high-voltage vacuum circuit breaker electrode commonly used both at home and abroad, insulation margin is less; The 2nd, indoor high-voltage vacuum circuit breaker though can improve the insulation level of product, can cause equipment volume huge by after increasing interelectrode air insulation distance, and cost significantly increases.
The utility model content
The technical problem that the utility model solves: a kind of indoor high-voltage vacuum circuit breaker trigger device is provided, by after installing the insulating shield made from organic insulating material on the moving contact additional, greatly increase interelectrode arc and dodged distance, improve arc and dodged magnitude of voltage, correspondingly improved insulation level, increased insulation margin, fail safe and reliability when having guaranteed the product operation.
The technical solution adopted in the utility model: the indoor high-voltage vacuum circuit breaker trigger device, comprise moving contact and the contact arm that is attached thereto to one, be set with the insulating shield made from insulating material on the described moving contact.
Described insulating shield is a bowl structure, and makes with organic insulating material.
Described insulating shield is made of protection cover body, transition cover body and installation cover body, and the protection cover body is connected as a single entity with cover body is installed by the transition cover body, and described installation cover body is fixed on the circuit breaker contact arm, and described protection cover body coats moving contact of breaker fully.
The utility model is compared with prior art by after installing the insulating shield made from organic insulating material additional on 12kV～40.5kV indoor high-voltage vacuum circuit breaker moving contact, increase interelectrode arc and dodged distance, improve arc and dodged magnitude of voltage, correspondingly improved insulation level, increased insulation margin, fail safe and reliability when having guaranteed the product operation, overall dimension owing to product does not change simultaneously, be convenient to tissue production, improved operating efficiency, reduce cost, had good economic benefit.
Description of drawings
Fig. 1 is an insulating shield structural representation of the present utility model;
Fig. 2 is the utility model assembly structure schematic diagram;
Fig. 3 is the assembling schematic diagram of 12kV indoor high-voltage vacuum circuit breaker trigger device;
Fig. 4 is the assembling schematic diagram of 40.5KV indoor high-voltage vacuum circuit breaker trigger device.
Embodiment
Below in conjunction with accompanying drawing 1,2,3 a kind of embodiment of the present utility model is described.
The indoor high-voltage vacuum circuit breaker trigger device that is used for 12kV; comprise moving contact 4 and the contact arm 6 that is attached thereto to one; contact arm 6 is connected with operating mechanism 8 with pole 8 fixedly connected backs; be set with the insulating shield made from organic insulating material 5 on the moving contact 4; insulating shield 5 is a bowl structure; constitute by protection cover body 1, transition cover body 2 and installation cover body 3; protection cover body 1 is connected as a single entity by transition cover body 2 and installation cover body 3; cover body 3 is installed is fixed on the circuit breaker contact arm 6, protection cover body 1 coats moving contact of breaker 4 fully.
The utility model cardinal principle: according to the high voltage electric field analysis theories, dielectric (organic insulation and air) for compound inslation, its puncture voltage (arc lightning pressure) is dodged the distance decision by arc, arc dodges apart from big more, then puncture voltage (arc lightning pressure) value is high more, insulation level is high more, based on above analysis,, designed the insulating shield made from organic insulating material 5 by the numerical computations of finite element analysis and boundary electric field, be installed on the moving contact of breaker 4, increase interelectrode arc and dodged distance, improved arc and dodged magnitude of voltage, correspondingly improved insulation level, after the product insulation property improve, be suitable for the environment of needs raising insulation levels such as plateau.
When indoors high-pressure vacuum breaker and switchgear assembly are used, form between electrode between the moving contact 4 and between moving contact 4 and other electrified body and concern, arc by between the two dodges distance and keeps enough insulation levels, after installing the insulating shield made from organic insulating material 5 on the moving contact 4 additional, increase interelectrode arc and dodged distance, improved arc and dodged magnitude of voltage, correspondingly improved insulation level, increased insulation margin, fail safe and reliability when having guaranteed the product operation.
1,2,4 another kind of embodiment of the present utility model is described in conjunction with the accompanying drawings.
The indoor high-voltage vacuum circuit breaker trigger device that is used for 40.5kV, principle and embodiment one are basic identical, and difference is that contact arm 6 is connected with operating mechanism 8 with insulating cylinder 7 fixedly connected backs.
Important technological parameters of the present utility model is as follows:
As seen through the above analysis, after installing the insulating shield made from organic insulating material 5 additional on 12kV～40.5kV indoor high-voltage vacuum circuit breaker moving contact, increase interelectrode arc and dodged distance, improve arc and dodged magnitude of voltage, correspondingly improved insulation level, increased insulation margin, fail safe and reliability when having guaranteed the product operation.
Because the overall dimension of product does not change, be convenient to tissue production simultaneously, improved operating efficiency, reduced cost, have good economic benefit.
Claims (3)
1. indoor high-voltage vacuum circuit breaker trigger device comprises moving contact (4) and is attached thereto contact arm (6) into one, it is characterized in that: be set with the insulating shield made from insulating material (5) on the described moving contact (4).
2. indoor high-voltage vacuum circuit breaker trigger device according to claim 1 is characterized in that: described insulating shield (5) is a bowl structure, and makes with organic insulating material.
3. indoor high-voltage vacuum circuit breaker trigger device according to claim 1 and 2; it is characterized in that: described insulating shield (5) is by protection cover body (1), transition cover body (2) and cover body (3) formation is installed; protection cover body (1) is connected as a single entity by transition cover body (2) and installation cover body (3); described installation cover body (3) is fixed on the circuit breaker contact arm (6), and described protection cover body (1) coats moving contact of breaker (4) fully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201997414U CN201717185U (en) | 2010-05-21 | 2010-05-21 | Moving contact device of indoor high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201997414U CN201717185U (en) | 2010-05-21 | 2010-05-21 | Moving contact device of indoor high-voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201717185U true CN201717185U (en) | 2011-01-19 |
Family
ID=43463192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201997414U Expired - Fee Related CN201717185U (en) | 2010-05-21 | 2010-05-21 | Moving contact device of indoor high-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201717185U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103703530A (en) * | 2011-07-25 | 2014-04-02 | Abb技术有限公司 | Power distribution switchgear circuit breaker |
| CN106803470A (en) * | 2017-02-27 | 2017-06-06 | 厦门理工学院 | A kind of VD4 contacts for vacuum-break switches protection device |
| CN106876212A (en) * | 2017-03-08 | 2017-06-20 | 厦门理工学院 | A kind of mounting structure of VD4 vacuum circuit breakers contact arm and contact |
-
2010
- 2010-05-21 CN CN2010201997414U patent/CN201717185U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103703530A (en) * | 2011-07-25 | 2014-04-02 | Abb技术有限公司 | Power distribution switchgear circuit breaker |
| CN106803470A (en) * | 2017-02-27 | 2017-06-06 | 厦门理工学院 | A kind of VD4 contacts for vacuum-break switches protection device |
| CN106803470B (en) * | 2017-02-27 | 2018-11-13 | 厦门理工学院 | A kind of contacts for vacuum-break switches protective device |
| CN106876212A (en) * | 2017-03-08 | 2017-06-20 | 厦门理工学院 | A kind of mounting structure of VD4 vacuum circuit breakers contact arm and contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20190521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |