CN203983134U - A kind of vacuum circuit breaker on outdoor lamppost - Google Patents
A kind of vacuum circuit breaker on outdoor lamppost Download PDFInfo
- Publication number
- CN203983134U CN203983134U CN201420293129.1U CN201420293129U CN203983134U CN 203983134 U CN203983134 U CN 203983134U CN 201420293129 U CN201420293129 U CN 201420293129U CN 203983134 U CN203983134 U CN 203983134U
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- CN
- China
- Prior art keywords
- terminal block
- insulating sleeve
- operation control
- control box
- circuit breaker
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Abstract
The utility model discloses a kind of vacuum circuit breaker on outdoor lamppost, comprise installing rack, operation control box, insulating sleeve, inlet wire terminal block and outlet terminal block; Described inlet wire terminal block is arranged on the upper end of insulating sleeve; Described outlet terminal block is arranged on the middle part of insulating sleeve; Wherein, in insulating sleeve, be provided with a vacuum interrupter; Described inlet wire terminal block, quiescent contacting knife, vacuum interrupter and outlet terminal block are connected successively, form current circuit; And in A, C phase current loop, between arc control device and outlet terminal block, be provided with the current transformer that runs through type.This breaker structure is simple, safe and reliable, good insulation preformance; Be applicable to exchange 50Hz; system rated operational voltage 10kV; in rated operational current 630A and following overhead transmission line, as the disjunction of electrical network power consumption equipment, close load current, and the outdoor switch device of overload current, short circuit current control and protection is used.
Description
Technical field
The utility model relates to the switchgear using on a kind of transmission line, has related in particular to a kind of vacuum circuit breaker on outdoor lamppost of the 10kV of being applicable to transmission line.
Background technology
Transmission of electricity is after the electric energy that generator sent with transformer boosts, then realizes through control appliance access transmission lines such as circuit breakers.By version, transmission line is divided into overhead transmission line and cable line.The formations such as overhead transmission line route overhead line structures, wire, insulator, line hardware, bracing wire, pole and tower foundation, earthing device, are erected on ground.According to the character of carrying electric current, transmission of electricity is divided into ac transmission and direct current transportation.
For suburb and exurban electric company, in jurisdiction major network main system, the safe power supply of 10kV feed overhead transmission line is very important.But, 10kV feed overhead transmission line structure is various, Frequent Accidents, particularly in urban and suburban areas and area, the outer suburbs, also there is a large amount of overhead transmission lines, these overhead transmission lines are often all multipoint lines, and security reliability is poor, runs into the bad weathers such as blowing and raining, ground connection and short trouble take place frequently, and have had a strong impact on the safe and reliable power supply of electrical network.Therefore, conventionally all can install circuit breaker additional in switching power supply place of 10kV transmission line, power consumption equipment is protected.
At present, outdoor high-voltage AC porcelain knob breaker belongs to the electric coordinated type operating breaker of three-phase, three one poles, consists of, and can realize electric remote-control or manual on the spot.But, along with the capacity of urban and rural power grids constantly increase, the rated short circuit drop-out current of this type of outdoor high-voltage AC porcelain knob breaker and specified short time withstand current ability have certain limitation, and especially, in cut-offfing rated short circuit current process, fracture easily punctures.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of safe and reliable and simple in structure, vacuum circuit breaker on outdoor lamppost that production cost is low is provided.
To achieve these goals, the utility model has adopted following technical scheme:
A vacuum circuit breaker on outdoor lamppost, is that a kind of overall structure is the circuit breaker of three-phase column support type, comprises installing rack, operation control box, insulating sleeve, inlet wire terminal block and outlet terminal block; Described operation control box is fixedly mounted in installing rack; Described insulating sleeve is arranged in operation control box; Described inlet wire terminal block is arranged on the upper end of insulating sleeve, and is connected with the quiescent contacting knife that is arranged on insulating sleeve inside; Described outlet terminal block is arranged on the middle part of insulating sleeve; Wherein, in described insulating sleeve, be provided with a vacuum interrupter; Described inlet wire terminal block, quiescent contacting knife, vacuum interrupter and outlet terminal block are connected successively, form current circuit; And in A, C phase current loop, between described vacuum interrupter and outlet terminal block, be provided with the current transformer that runs through type, the connecting line of vacuum interrupter and outlet terminal block is through current transformer.
Vacuum circuit breaker on outdoor lamppost of the present utility model is applicable to exchange 50Hz; system rated operational voltage 10kV; in rated operational current 630A and following overhead transmission line; as the disjunction of electrical network power consumption equipment, close load current, and the outdoor switch device of overload current, short circuit current control and protection is used.In A, C phase current loop, set up the current transformer of using for the protection of, instrumentation, made this circuit breaker more safe and reliable.Arc control device adopt vacuum interrupter; Vacuum interrupter, have another name called vacuum switch tube, vacuum bubbles, it is the core component of mesohigh power switch, its Main Function is, by managing insulating properties that interior vacuum is good, make after mesohigh circuitry cuts power supply blow-out rapidly and suppress electric current, avoid accident and unexpected generation, be mainly used in the power transmission and distribution control system of electric power, be also applied to the distribution systems such as metallurgy, mine, oil, chemical industry, railway, broadcast, communication, industrial high-frequency heating; There is energy-conservation, material-saving, fire prevention, explosion-proof, volume is little, the life-span is long, maintenance cost is low, the feature such as reliable and pollution-free.
As of the present utility model, further illustrate, described operation control box inside is provided with operating mechanism, and the shaft insulation of operating mechanism is connected with vacuum interrupter.
The operating mechanism of operation control box comprises transmission mechanism and stored energy mechanism; Stored energy mechanism adopt spring mechanism and/permanent magnet mechanism; The structural design of operating mechanism adopts the conventional design of this area.When stored energy mechanism adopts spring mechanism, can be manual or electric energy-stored; When stored energy mechanism adopts permanent magnet mechanism, should be non-maintaining, be installed in protection against the tide, dustproof, antirust seal casinghousing.
As of the present utility model, further illustrate, the panels outside of described operation control box is provided with energy accumulation handle and divide-shut brake handle; Described energy accumulation handle is connected with operating mechanism respectively with divide-shut brake handle.By energy accumulation handle and divide-shut brake handle, can realize the operations such as manual energy storage, manual divide-shut brake.
As of the present utility model, further illustrate, in described operation control box, be filled with not the SF higher than 0.35MPA
6gas, SF
6gas moisture water content is not more than 150PPM(volume ratio).SF
6gas is a kind of good dielectric, can improve the insulation property in operation control box.
As of the present utility model, further illustrate, the panels outside of described operation control box is also provided with low pressure indicating device.Low pressure indicating device can detect the atmospheric pressure value in control cabinet, prevents internal over pressure etc.
As of the present utility model, further illustrate, the panels outside of described operation control box is also provided with aviation socket.Aviation socket, for pegging graft external controller, is realized the electric operating of long-range or on-the-spot remote control and the function of automation.
Vacuum interrupter of the present utility model is mainly partly comprised of airtight insulation crust, galvanic circle, shielding harness, contact, bellows etc.; Its structural design adopts conventional design.The casing of operation control box should adopt corrosion resistant aluminum alloy, stainless steel material or add the spraying of outdoor anti-ultraviolet material coating by steel plate and make, and has fire-retardant, explosion-proof, antirust, dustproof, ageing resistace.Casing, through sophisticated equipment processing such as laser cutting, numerical control bender bendings, is guaranteed the reliability of box sealing.Insulating sleeve adopts the epoxide resin material anti-aging, resistance to corrosion is strong or silicon rubber insulation material to build and forms.
Compared with prior art, the beneficial effect that the utility model possesses:
Simple in structure, safe and reliable, good insulation preformance; At A, C phase current, in loop, set up current transformer, further improve the usage safety performance of this circuit breaker; Adopt vacuum bubbles to carry out arc extinguishing; In controlling casing, be full of hypobaric SF
6gas, can further improve its insulation property; Its operating mechanism can be manual or electric energy-stored, meets the performance requirement of maintenance; Be applicable to exchange 50Hz; system rated operational voltage 10kV; in rated operational current 630A and following overhead transmission line, as the disjunction of electrical network power consumption equipment, close load current, and the outdoor switch device of overload current, short circuit current control and protection is used.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment.
Reference numeral:
1-installing rack, 2-operation control box, 3-vacuum interrupter, 4-insulating sleeve, 5-inlet wire terminal block, 6-outlet terminal block, 7-current transformer, 8-energy accumulation handle, 9-divide-shut brake handle.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated, but protection range of the present utility model is not limited to following examples.
Embodiment:
As shown in Figure 1, a kind of vacuum circuit breaker on outdoor lamppost, is that a kind of overall structure is the circuit breaker of three-phase column support type, comprises installing rack 1, operation control box 2, insulating sleeve 4, inlet wire terminal block 5 and outlet terminal block 6; Described operation control box 2 is fixedly mounted in installing rack 1; Described insulating sleeve 4 is arranged in operation control box 2; Described inlet wire terminal block 5 is arranged on the upper end of insulating sleeve 4, and is connected with the quiescent contacting knife that is arranged on insulating sleeve 4 inside; Described outlet terminal block 6 is arranged on the middle part of insulating sleeve 4; In described insulating sleeve 4, be provided with vacuum interrupter 3; Described inlet wire terminal block 5, quiescent contacting knife, vacuum interrupter 3 and outlet terminal block 6 are connected successively, form current circuit; And in A, C phase current loop, between described vacuum interrupter 3 and outlet terminal block 6, be provided with the connecting line of the current transformer 6, vacuum interrupter 3 and the outlet terminal block 6 that run through type through current transformer 6.Described operation control box 2 inside are provided with operating mechanism, and are filled with not the SF higher than 0.35MPA
6gas, SF
6gas moisture water content is not more than 150PPM(volume ratio); The shaft insulation of operating mechanism is connected with vacuum interrupter 3.
The panels outside of described operation control box 2 is provided with low pressure indicating device, aviation socket, energy accumulation handle 8 and divide-shut brake handle 9; Described energy accumulation handle 8 is connected with operating mechanism respectively with divide-shut brake handle 9, realizes manual energy storage and breaking-closing operating; Described low pressure indicating device detects the atmospheric pressure value in control cabinet, prevents internal over pressure etc.; Described aviation socket, for pegging graft external controller, is realized the electric operating of long-range or on-the-spot remote control and the function of automation.
The vacuum circuit breaker on outdoor lamppost of the present embodiment and external controller, the supporting installation of voltage transformer; be applicable to exchange 50Hz; system rated operational voltage 10kV; in rated operational current 630A and following overhead transmission line; as the disjunction of electrical network power consumption equipment, close load current, and the outdoor switch device of overload current, short circuit current control and protection is used.
Claims (6)
1. a vacuum circuit breaker on outdoor lamppost, is that a kind of overall structure is the circuit breaker of three-phase column support type, comprises installing rack (1), operation control box (2), insulating sleeve (4), inlet wire terminal block (5) and outlet terminal block (6); Described operation control box (2) is fixedly mounted in installing rack (1); Described insulating sleeve (4) is arranged in operation control box (2); Described inlet wire terminal block (5) is arranged on the upper end of insulating sleeve (4), and the quiescent contacting knife inner with being arranged on insulating sleeve (4) is connected; Described outlet terminal block (6) is arranged on the middle part of insulating sleeve (4); It is characterized in that: in described insulating sleeve (4), be provided with a vacuum interrupter (3); Described inlet wire terminal block (5), quiescent contacting knife, vacuum interrupter (3) and outlet terminal block (6) are connected successively, form current circuit; And in A, C phase current loop, be provided with the current transformer (6) that runs through type between described vacuum interrupter (3) and outlet terminal block (6), the connecting line of vacuum interrupter (3) and outlet terminal block (6) is through current transformer (6).
2. vacuum circuit breaker on outdoor lamppost according to claim 1, is characterized in that: described operation control box (2) inside is provided with operating mechanism, and the shaft insulation of operating mechanism is connected with vacuum interrupter (3).
3. vacuum circuit breaker on outdoor lamppost according to claim 2, is characterized in that: the panels outside of described operation control box (2) is provided with energy accumulation handle (8) and divide-shut brake handle (9); Described energy accumulation handle (8) is connected with operating mechanism respectively with divide-shut brake handle (9).
4. according to the arbitrary described vacuum circuit breaker on outdoor lamppost of claim 1-3, it is characterized in that: in described operation control box (2), be filled with not the SF higher than 0.35MPA
6gas, SF
6gas moisture water content is not more than 150PPM.
5. vacuum circuit breaker on outdoor lamppost according to claim 4, is characterized in that: the panels outside of described operation control box (2) is also provided with low pressure indicating device.
6. vacuum circuit breaker on outdoor lamppost according to claim 4, is characterized in that: the panels outside of described operation control box (2) is also provided with aviation socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293129.1U CN203983134U (en) | 2014-06-04 | 2014-06-04 | A kind of vacuum circuit breaker on outdoor lamppost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293129.1U CN203983134U (en) | 2014-06-04 | 2014-06-04 | A kind of vacuum circuit breaker on outdoor lamppost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203983134U true CN203983134U (en) | 2014-12-03 |
Family
ID=51980560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420293129.1U Expired - Fee Related CN203983134U (en) | 2014-06-04 | 2014-06-04 | A kind of vacuum circuit breaker on outdoor lamppost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203983134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538244A (en) * | 2015-01-27 | 2015-04-22 | 浙江群力电气有限公司 | Vacuum circuit breaker |
| CN104766758A (en) * | 2015-04-17 | 2015-07-08 | 福建省宏科电力科技有限公司 | Linkage control device and control method thereof |
-
2014
- 2014-06-04 CN CN201420293129.1U patent/CN203983134U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538244A (en) * | 2015-01-27 | 2015-04-22 | 浙江群力电气有限公司 | Vacuum circuit breaker |
| CN104766758A (en) * | 2015-04-17 | 2015-07-08 | 福建省宏科电力科技有限公司 | Linkage control device and control method thereof |
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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: 20141203 Termination date: 20160604 |