CN201975318U - High pressure alternating current porcelain column type SF6 special-purpose breaker - Google Patents
High pressure alternating current porcelain column type SF6 special-purpose breaker Download PDFInfo
- Publication number
- CN201975318U CN201975318U CN2010206097296U CN201020609729U CN201975318U CN 201975318 U CN201975318 U CN 201975318U CN 2010206097296 U CN2010206097296 U CN 2010206097296U CN 201020609729 U CN201020609729 U CN 201020609729U CN 201975318 U CN201975318 U CN 201975318U
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- China
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- porcelain
- fixed contact
- connecting lever
- circuit breaker
- contact system
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Abstract
The utility model discloses a high pressure alternating current porcelain column type SF6 special-purpose breaker comprising a single pole explosion chamber, a transmission framework, a local control cabinet and a support; wherein the transmission framework is arranged on the support, the single pole explosion chamber is arranged on the top of the transmission framework, and the bottom of the transmission framework is connected with the locally control cabinet. The advantages of the utility model are that: the utility model adopts present advanced CT20 spring operating mechanism with low operating noise, high machinery reliability, light structure of three phase machinery linkage and convenient debug process; the transmission part of the explosion chamber adopts a rotary seal structure and reduces the resistance in motion process, so as to reduce the mechanism spring strength, operating noise, operating shock and impact of the internal mechanism, thereby raising the reliability of the product; the utility model uses mechanism down-hang structure instead of prior mechanism side-hang structure to effectively solve the waterproof problem of the mechanism case.
Description
Technical field:
The utility model belongs to field of circuit breakers, relates to a kind of high voltage electric power equip ment and circuit device, especially a kind of LW25A-126 outdoor high-voltage alternating current porcelain knob SF
6Circuit breaker.
Background technology:
LW25A-126 outdoor high-voltage alternating current porcelain knob SF
6The generation of circuit breaker, the a lot of problems that exist in present each producer's like product have been solved, mechanism case water inlet is being cut-off aspect the short circuit current especially, like product can only accomplish to cut-off 31.5kA, 40kA at present, this is to the increasing urban and rural power grids construction of capacity requirement, a lot of adverse influences are arranged, particularly aspect short trouble.
The utility model content:
At the problem of present like product existence, in order to satisfy the requirement of big capacity drop-out current, at LW25-126 outdoor high-voltage alternating current porcelain knob SF
6On the basis of circuit breaker, hermetically-sealed construction and arc quenching chamber structure have been carried out improving design, not only reduced cost, and reduced the spring force of mechanism, can reach the ability of cut-offfing the 40kA operation-current, improved the reliability of circuit breaker.
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of high-voltage alternating porcelain knob SF is provided
6Definite purpose circuit breaker comprises one pole arc control device, transmission framework, on-site control and support; Described transmission framework is erected on the support, and the one pole arc control device are arranged on transmission framework top, and transmission framework bottom surface is connected with on-site control.
Described one pole arc control device comprise interrupting porcelain insulator, fixed contact system, strut porcelain bushing and connecting lever case; Described interrupting porcelain insulator is socketed in the strut porcelain bushing upper end; Described strut porcelain bushing is connected with the connecting lever case; Be provided with the fixed contact system in the described one pole arc control device.
Described interrupting porcelain insulator top is provided with adsorbent; Described interrupting porcelain insulator inside is provided with steady arm, fixed contact system, spout, moving contact, air cylinder, piston and piston rod; Described steady arm bottom is provided with the fixed contact system, and fixed contact system bottom is provided with air cylinder, and the built-in piston of air cylinder connects piston rod on the piston.
Described fixed contact system comprises stationary contact headstock, fixed contact and quiet arc contact.
Be provided with insulating bar in the described strut porcelain bushing.
Be provided with joint in the described connecting lever case, connecting lever in connecting on the joint is connected with outer connecting lever on the interior connecting lever.
Be filled with SF in the described one pole arc control device
6Gas.
Advantage of the present utility model is:
1. adopted present advanced person's CT20 spring operating mechanism, operation noise is low, the Mechanical Reliability height, and three-phase mechanical linkage, structure is light and handy, is specially adapted to the needs of city net, rural power grids engineering.
2. on-the-spot the installation only need be carried out about connecting and additional SF
6Gas, debug process is convenient.The operation maintenance workload is few, only need regularly check SF
6The gas gauge pressure gets final product.
3. arc extinguishing arc chamber running part adopts rotational sealing structure, has reduced the resistance in the motion process, thereby has reduced mechanism's spring strength, has reduced operation noise and operation vibrations and in-house impact, thereby has improved product reliability.
4. hang from original mechanism side and be improved to hanging hang structure under the mechanism, efficiently solve the waterproof problem of mechanism case.
Description of drawings:
Fig. 1 is high-voltage alternating porcelain knob SF of the present utility model
6The definite purpose circuit breaker structural representation;
Fig. 2 is the utility model one pole arc quenching chamber structure schematic diagram;
Fig. 3 is an arc control device porcelain internal structure schematic diagram of the present utility model;
Fig. 4 is a connecting lever box structure schematic diagram of the present utility model;
Fig. 5 is a fixed contact system configuration schematic diagram of the present utility model;
Wherein: 1 is the one pole arc control device; 2 are the transmission framework; 3 is on-site control; 4 is support; 5 is interrupting porcelain insulator; 6 is strut porcelain bushing; 7 is the connecting lever case; 8 is steady arm; 9 is spout; 10 is moving contact; 11 is air cylinder; 12 is piston; 13 is piston rod; 14 is the stationary contact headstock; 15 is fixed contact; 16 is the quiet arc contact; 17 is insulating bar; 18 is joint; 19 is interior connecting lever; 20 is outer connecting lever.
Embodiment:
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Referring to Fig. 1-5, a kind of high-voltage alternating porcelain knob SF
6Definite purpose circuit breaker comprises one pole arc control device, transmission framework, on-site control and support; Described transmission framework is erected on the support, and the one pole arc control device are arranged on transmission framework top, and transmission framework bottom surface is connected with on-site control.
Described one pole arc control device comprise interrupting porcelain insulator, fixed contact system, strut porcelain bushing and connecting lever case; Described interrupting porcelain insulator is socketed in the strut porcelain bushing upper end; Described strut porcelain bushing is connected with the connecting lever case; Be provided with the fixed contact system in the described one pole arc control device.
Described interrupting porcelain insulator top is provided with adsorbent; Described interrupting porcelain insulator inside is provided with steady arm, fixed contact system, spout, moving contact, air cylinder, piston and piston rod; Described steady arm bottom is provided with the fixed contact system, and fixed contact system bottom is provided with air cylinder, and the built-in piston of air cylinder connects piston rod on the piston.
Described fixed contact system comprises stationary contact headstock, fixed contact and quiet arc contact.
Be provided with insulating bar in the described strut porcelain bushing.
Be provided with joint in the described connecting lever case, connecting lever in connecting on the joint is connected with outer connecting lever on the interior connecting lever.
Be filled with SF in the described one pole arc control device
6Gas.
The single-pole circuit breaker arc control device mainly are made up of moved end and quiet end two parts.Its moved end mainly comprises moving contact system and finger contact two parts, and quiet end comprises the fixed contact system.Mechanism case is equipped with mechanism, and mechanism drives it and rotatablely moves by outer connecting lever, be connected with interior connecting lever, and joint is connected with insulating bar again, and insulating bar is connected with the moving contact system, and it is with certain speed rectilinear motion, thereby carries out the branch closing operation with the fixed contact system.The fixed contact system is made up of plate, supporter, stationary contact headstock, fixed contact and quiet arc contact, and the fixed contact system is connected with the arc extinguishing insulator by plate.
The assembling of connecting lever case is made up of connecting lever case, interior connecting lever, dish spring, sealing gasket, outer connecting lever.
When moving contact system and fixed contact system close close after, electric current is by finger contact-moving contact system-fixed contact system.
In the separating brake process, air cylinder and piston relative motion, the SF in the compression preface air cylinder
6Gas sprays at a high speed from spout, the high-voltage arc between preface quiet arc contact and the moving arcing contact is extinguished, thereby cut off electric current, other visual plants of protection electric power system.
LW25A-126 outdoor high-voltage alternating current porcelain knob SF
6Circuit breaker belongs to three-phase mechanical linkage formula operating breaker, and arc control device place in three insulators, can realize electric remote-control or manual on the spot.The CT20 type spring operating mechanism of product adapted, this mechanism is the operating mechanism of little, the few maintenance of a kind of operating work, high reliability.The LW25A-126 circuit breaker passes through prototype tests 5～August in 2008 at Xian High voltage Apparatus Research Institute.Product testing program and parameter all meet the test requirements document of IEC62271-100 " ac hv breaker " and GB/T1984 " high-voltage AC breaker ", and successfully obtain test certificate.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.
Claims (8)
1. high-voltage alternating porcelain knob SF
6Definite purpose circuit breaker is characterized in that: comprise one pole arc control device, transmission framework, on-site control and support; Described transmission framework is erected on the support, and the one pole arc control device are arranged on transmission framework top, and transmission framework bottom surface is connected with on-site control.
2. a kind of according to claim 1 high-voltage alternating porcelain knob SF
6Definite purpose circuit breaker is characterized in that: described one pole arc control device comprise interrupting porcelain insulator, fixed contact system, strut porcelain bushing and connecting lever case; Described interrupting porcelain insulator is socketed in the strut porcelain bushing upper end; Described strut porcelain bushing is connected with the connecting lever case; Be provided with the fixed contact system in the described one pole arc control device.
3. a kind of according to claim 1 high-voltage alternating porcelain knob SF
6Definite purpose circuit breaker is characterized in that: described interrupting porcelain insulator top is provided with adsorbent; Described interrupting porcelain insulator inside is provided with steady arm, fixed contact system, spout, moving contact, air cylinder, piston and piston rod; Described steady arm bottom is provided with the fixed contact system, and fixed contact system bottom is provided with air cylinder, and the built-in piston of air cylinder connects piston rod on the piston.
4. a kind of according to claim 1 high-voltage alternating porcelain knob SF
6Definite purpose circuit breaker is characterized in that: described fixed contact system comprises stationary contact headstock, fixed contact and quiet arc contact.
5. a kind of according to claim 1 high-voltage alternating porcelain knob SF
6Definite purpose circuit breaker is characterized in that: be provided with insulating bar in the described strut porcelain bushing.
6. a kind of according to claim 1 high-voltage alternating porcelain knob SF
6Definite purpose circuit breaker is characterized in that: be provided with joint in the described connecting lever case, connecting lever in connecting on the joint is connected with outer connecting lever on the interior connecting lever.
7. a kind of according to claim 1 high-voltage alternating porcelain knob SF
6Definite purpose circuit breaker is characterized in that: be filled with SF in the described one pole arc control device
6Gas.
8. a kind of according to claim 1 high-voltage alternating porcelain knob SF
6Definite purpose circuit breaker, it is characterized in that: described on-site control is equipped with mechanism, mechanism passes through outer connecting lever, is connected with interior connecting lever, driving it rotatablely moves, joint is connected with insulating bar again, insulating bar is connected with the moving contact system, and it is with certain speed rectilinear motion, thereby carries out the branch closing operation with the fixed contact system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206097296U CN201975318U (en) | 2010-11-16 | 2010-11-16 | High pressure alternating current porcelain column type SF6 special-purpose breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206097296U CN201975318U (en) | 2010-11-16 | 2010-11-16 | High pressure alternating current porcelain column type SF6 special-purpose breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975318U true CN201975318U (en) | 2011-09-14 |
Family
ID=44580416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206097296U Expired - Lifetime CN201975318U (en) | 2010-11-16 | 2010-11-16 | High pressure alternating current porcelain column type SF6 special-purpose breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975318U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701104A (en) * | 2014-12-31 | 2015-06-10 | 国家电网公司 | High-voltage circuit breaker |
| CN105244222A (en) * | 2015-10-21 | 2016-01-13 | 成都迅德科技有限公司 | Porcelain knob-type circuit breaker |
-
2010
- 2010-11-16 CN CN2010206097296U patent/CN201975318U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701104A (en) * | 2014-12-31 | 2015-06-10 | 国家电网公司 | High-voltage circuit breaker |
| CN105244222A (en) * | 2015-10-21 | 2016-01-13 | 成都迅德科技有限公司 | Porcelain knob-type circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |
|
| CX01 | Expiry of patent term |