CN201877381U - Outdoor high-voltage alternating-current demarcation breaker - Google Patents
Outdoor high-voltage alternating-current demarcation breaker Download PDFInfo
- Publication number
- CN201877381U CN201877381U CN2010206490548U CN201020649054U CN201877381U CN 201877381 U CN201877381 U CN 201877381U CN 2010206490548 U CN2010206490548 U CN 2010206490548U CN 201020649054 U CN201020649054 U CN 201020649054U CN 201877381 U CN201877381 U CN 201877381U
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- Prior art keywords
- breaker
- current transformer
- zero sequence
- voltage alternating
- outdoor high
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Abstract
The utility model discloses an outdoor high-voltage alternating-current demarcation breaker which comprises a PT power source, a breaker body, a zero sequence current transformer and a current transformer, wherein the PT power source is adopted as a voltage transformer and is connected on a support of the breaker body; the zero sequence current transformer is directly installed on a three-phase output flange rod of the breaker; and the current transformer is positioned beside the zero sequence current transformer and only installed on a two-phase output flange rod of the breaker. The breaker device can also be provided with an isolating switch which is installed in front of the zero sequence current transformer and the current transformer. The outdoor high-voltage alternating-current demarcation breaker changes the structure of a insulating piece of a traditional breaker, the zero sequence current transformer can be arranged outside; and the whole breaker adopts gas without oil and SF6, and can be additionally provided with an isolating switch, thus being more practical.
Description
Technical field
The utility model relates to circuit breaker, particularly the outdoor high-voltage alternating current demarcation circuit breaker.
Background technology
Current outdoor high-voltage alternating current demarcation circuit breaker mainly is to adopt the circuit breaker form of filling SF6 gas, zero sequence current mutual inductor must be contained in circuit breaker inside, the defective that causes this circuit breaker to exist is: 1, can not install isolating switch additional, the mounting means of upside-down mounting is to operating inconvenience; 2, the circuit breaker inner space is too little, must be by the SF6 gas-insulated, and SF6 gas recovery difficult is big, and environment is polluted; 3, inconvenient maintenance, the cost height.
The utility model content
In order to overcome the defective that above-mentioned prior art exists, the utility model provides a kind of outdoor high-voltage alternating current demarcation circuit breaker, and zero sequence current mutual inductor can be external, and whole device adopts does not have oil, no SF6 gas, and can install isolating switch additional, more practical.
To achieve these goals, the technical solution of the utility model is as follows:
The outdoor high-voltage alternating current demarcation circuit breaker comprises PT power supply, breaker body, zero sequence current mutual inductor and current transformer, and described PT power supply is a voltage transformer, is connected on the bearing of breaker body.
Described breaker body adopts three-phase pole type structure, and it is reliable and stable to have a break performance, no burning and explosion hazard, safe.
Be characterized in that described zero sequence current mutual inductor is external, be directly installed on the double ender of circuit breaker three-phase output that having changed former zero sequence current mutual inductor must built-in limitation.One side of described zero sequence current mutual inductor is connected with breaker body by described double ender, and opposite side is connected described current transformer.
Described zero sequence current mutual inductor has the ground protection function, has improved the fail safe of whole release unit.
Described current transformer is positioned at the side of zero sequence current mutual inductor, only is installed on the double ender of described circuit breaker two-phase output.
Also can install isolating switch additional on this device, described isolating switch is connected with described current transformer, is installed in the front of zero sequence current mutual inductor and current transformer.
The three-phase pole structure of described circuit breaker will change to present 280mm apart from 340mm between original adjacent two poles, electric conductor all is installed in the described pole, changed the insulating part structure of former circuit breaker, insulation property and intensity improve greatly.
Further, the bottom of described breaker body is mechanism's cover, and the outside end face of described mechanism cover is provided with terminal board, and the binding post of PT power supply, zero degree current transformer and current transformer all is installed in the described terminal board, and is convenient and reliable, for ease of maintenaince.
The beneficial effects of the utility model are, overall structure is compacter, and no SF6 gas reduces environmental pollution, and can install isolating switch additional, and is easy and simple to handle;
Structure after the improvement is fit to distribution automation and the intelligentized demand for development of electrical network more, and is practical, and environmental protection, safety and reliability.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the end view corresponding with Fig. 1.
Embodiment:
Be easy to understand understanding in order to make creation characteristic of the present utility model, technological means and to reach purpose, further set forth the utility model below in conjunction with specific embodiment.
Embodiment:
Referring to Fig. 1 and Fig. 2, the outdoor high-voltage alternating current demarcation circuit breaker comprises PT power supply 1, breaker body 2, zero sequence current mutual inductor 3, current transformer 4 and isolating switch 5.
Zero sequence current mutual inductor 3 is external, is directly installed on three double enders 22 of circuit breaker three-phase output, and having changed former zero sequence current mutual inductor must built-in form.
One side of zero sequence current mutual inductor 3 is connected with breaker body 2 by described double ender 22, and opposite side is connected described current transformer 4, and zero sequence current mutual inductor 3 has the ground protection function, has improved the fail safe of whole release unit.
Isolating switch 5 is installed on the front of zero sequence current mutual inductor 3 and current transformer 4, is connected by on the current transformer 4 extended strutting pieces 41.
Further, the outside end face of mechanism's cover 20 of breaker body 2 bottoms is provided with terminal board 23, the secondary input terminal of zero sequence current mutual inductor 3 and current transformer 4 no-load voltage ratio line exits, PT power supply 1 all is installed in the described terminal board 23, and is convenient and reliable, for ease of maintenaince.
In sum, this outdoor high-voltage alternating current demarcation circuit breaker overall structure is compacter, and no SF6 gas reduces environmental pollution, and can install isolating switch additional, and is easy and simple to handle;
Structure after the improvement is fit to distribution automation and the intelligentized demand for development of electrical network more, and is practical, and environmental protection, and safety and reliability is easy to maintenance.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. outdoor high-voltage alternating current demarcation circuit breaker, comprise PT power supply, breaker body, zero sequence current mutual inductor and current transformer, described PT power supply is connected on the bearing of breaker body, it is characterized in that, described zero sequence current mutual inductor is external, be directly installed on the double ender of breaker body three-phase output, described current transformer is positioned at the side of zero sequence current mutual inductor, is installed on the double ender of described breaker body two-phase output.
2. outdoor high-voltage alternating current demarcation circuit breaker according to claim 1 is characterized in that this circuit breaker can install isolating switch additional, is connected with described current transformer.
3. outdoor high-voltage alternating current demarcation circuit breaker according to claim 1 is characterized in that, the bottom of described breaker body is mechanism's cover, and the outside end face of described mechanism cover is provided with terminal board.
4. outdoor high-voltage alternating current demarcation circuit breaker according to claim 1 and 2 is characterized in that, described breaker body is a three-phase pole type structure, and distance is 280mm between two adjacent poles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206490548U CN201877381U (en) | 2010-12-09 | 2010-12-09 | Outdoor high-voltage alternating-current demarcation breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206490548U CN201877381U (en) | 2010-12-09 | 2010-12-09 | Outdoor high-voltage alternating-current demarcation breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877381U true CN201877381U (en) | 2011-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206490548U Expired - Fee Related CN201877381U (en) | 2010-12-09 | 2010-12-09 | Outdoor high-voltage alternating-current demarcation breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877381U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426968A (en) * | 2011-11-21 | 2012-04-25 | 温州罗克维电气有限公司 | Intelligent high voltage outdoor switch |
| CN105719890A (en) * | 2016-03-28 | 2016-06-29 | 苏刚印 | Side-mounted high-voltage vacuum circuit breaker |
| CN105742109A (en) * | 2016-03-28 | 2016-07-06 | 苏刚印 | Side-mounting type high-voltage vacuum circuit breaker |
| CN105762007A (en) * | 2016-03-28 | 2016-07-13 | 苏刚印 | Side-installed high-voltage vacuum circuit breaker |
| CN107565512A (en) * | 2017-10-17 | 2018-01-09 | 国网江苏省电力公司南通供电公司 | Outdoor type high-voltage intelligent circuit breaker |
-
2010
- 2010-12-09 CN CN2010206490548U patent/CN201877381U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426968A (en) * | 2011-11-21 | 2012-04-25 | 温州罗克维电气有限公司 | Intelligent high voltage outdoor switch |
| CN102426968B (en) * | 2011-11-21 | 2016-04-20 | 温州罗克维电气有限公司 | A kind of Intelligent high voltage outdoor switch |
| CN105719890A (en) * | 2016-03-28 | 2016-06-29 | 苏刚印 | Side-mounted high-voltage vacuum circuit breaker |
| CN105742109A (en) * | 2016-03-28 | 2016-07-06 | 苏刚印 | Side-mounting type high-voltage vacuum circuit breaker |
| CN105762007A (en) * | 2016-03-28 | 2016-07-13 | 苏刚印 | Side-installed high-voltage vacuum circuit breaker |
| CN107565512A (en) * | 2017-10-17 | 2018-01-09 | 国网江苏省电力公司南通供电公司 | Outdoor type high-voltage intelligent circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20131209 |