CN205160080U - Intelligent low tension circuit of drawer type combination - Google Patents
Intelligent low tension circuit of drawer type combination Download PDFInfo
- Publication number
- CN205160080U CN205160080U CN201520956564.2U CN201520956564U CN205160080U CN 205160080 U CN205160080 U CN 205160080U CN 201520956564 U CN201520956564 U CN 201520956564U CN 205160080 U CN205160080 U CN 205160080U
- Authority
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- China
- Prior art keywords
- inlet wire
- leading
- out terminal
- intelligent
- binding post
- Prior art date
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- Expired - Fee Related
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- 239000003990 capacitor Substances 0.000 claims abstract description 28
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 230000035876 healing Effects 0.000 claims abstract description 5
- 238000009826 distribution Methods 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model discloses an intelligent low tension circuit of drawer type combination, including inlet wire circuit and air switch, air switch's leading -out terminal has connected gradually current transformer and has arranged with female, and the last parallelly connected sample mutual -inductor that has of current transformer is connected with first, binding post of two, three, four inlet wires on female the arranging, and leading -out terminal first, a binding post of two, three inlet wires has connected gradually residual current operated circuit breaker respectively and has been qualified for the next round of competitions binding post one time, a binding post's of fourth inlet wire leading -out terminal is parallelly connected respectively to have the branch to mend intelligent intensive condenser, mend intelligent intensive condenser and circuit breaker of establishing ties mutually and self healing capacitor altogether, the sample mutual -inductor is connected with inlet wire secondary binding post, and inlet wire secondary binding post's leading -out terminal is connected with sampling end of minute mending intelligent intensive condenser and mending intelligent intensive condenser altogether respectively. The utility model discloses circuit structure is simple, and economy, safety have reduced the power off time, have improved rural electric network service reliability.
Description
Technical field
The utility model relates to the low-voltage distribution apparatus field in low-voltage power supply system, specifically a kind of drawer type combination intelligent low-voltage circuit be applicable to for the distribution system of earth leakage protective, reactive power compensation in three-phase and four-line agriculture distribution circuit.
Background technology
Low-voltage distribution apparatus has been responsible for controlling electric energy, protection, measurement, conversion and distribution in low-voltage power supply system.Relate to the various aspects of nation-building and people's lives.Its development is closely related with the development of national economy, science and technology and living standards of the people.
Along with the increase of resident living power utility load, require more and more higher to the insulating degree of power distribution station, rural safe electricity consumption level is constantly improved.In the prior art, each unit fixed and arranged of low-voltage distribution cabinet, insulating protection is not done in line busbar junction, and live part is exposed more, and during maintenance, operating personnel easily touch charged position by mistake, there is larger potential safety hazard; Maintenance comparatively bothers, and safety precautions is poor.
Power distribution cabinet is widely used in the power distribution network of Distribution Transformer in Rural Area outlet, one general configuration 3 returns back out line, when arbitrary return back out line residual current action breaker body fault time, adjacent for stoppage circuit breaker in cabinet outlet need be accompanied after stopping and can overhaul, expand power failure range, greatly have impact on rural power grids power supply reliability.
The economy of power system operation and the quality of power supply and reactive power have significant relationship.Idle is a kind of indispensable power of electric power system.Reactive power loss in a large amount of inductive loads and electrical network, require the reactive power that system provides enough, otherwise line voltage will decline, quality of voltage can not be guaranteed.Meanwhile, the unreasonable distribution of reactive power, also will cause line loss to increase, and reduce the economy of power system operation.The local compensation carrying out reactive power in low voltage electric network is the important step of whole power system reactive power compensation, mainly adopts shunt capacitor, and it comprises fixed capacitor and compensates and the mode such as the dynamic compensation of automatic switching capacitor and both mixed compensations.Electric load is transient change, the reactive power that it needs also changes at any time, in order to keep reactive balance, will according to the timely switched capacitor of the change of load or burden without work, traditional low voltage dynamic reactive-power compensation equipment is using mechanical switch as the fling-cut switch of capacitor, mechanical switch not only responsiveness is slow, also can produce the phenomenons such as impact, overvoltage, arc reignition of shoving, and switch itself and power capacitor all easily damage.According to statistics, the automatic switching reactive power compensation device for capacitor used in the past after 3 years spoilage reach 75%, spoilage is high.
Utility model content
The purpose of this utility model is to provide a kind of drawer type combination intelligent low-voltage circuit, simplify the electric wiring of power distribution cabinet, be designed to close the modularization intelligent circuit of isolating, simply exchanging, be easy to disperse transport, to improve rural power grids power supply reliability, reduce the interruption duration of user, promote the security level of execute-in-place, maintainer; And the intelligent integrated low-voltage reactive compensator capable of module design, to improve compensation effect, crossing of avoiding three-phase total compensation to repay causing is mended, is owed the defects such as benefit; Realize based on the operating passing zero technology of mechanical contact to low voltage power capacitor, integrate intelligent, miniaturized, modularization, reduce and switching overvoltage occurs, reliability is high, long service life simultaneously.
The technical solution of the utility model is as follows:
A kind of drawer type combination intelligent low-voltage circuit, include inlet wire circuit, it is characterized in that: described inlet wire circuit is connected with air switch, the leading-out terminal of described air switch is connected with current transformer and busbar in turn, described current transformer is parallel with first respectively, two, three sampling mutual inductors, described busbar is connected with first, two, three, four inlet wire primary connection terminals, described first, two, the leading-out terminal of three inlet wire primary connection terminals is connected to first, two, three residual current action breakers, described first, two, the end of incoming cables of three residual current action breakers is connected to first, two, three lightning arresters, first, two, the leading-out terminal of three residual current action breakers is connected to first, two, three outlet primary connection terminals, the leading-out terminal of described 4th inlet wire primary connection terminal is parallel with point a benefit intelligent compact type capacitor, altogether benefit intelligent compact type capacitor and the circuit breaker be in series and a self healing capacitor respectively, first, second and third described sampling mutual inductor is connected with inlet wire secondary wiring terminals by wire, and the leading-out terminal of described inlet wire secondary wiring terminals is mended intelligent compact type capacitor respectively and is connected with the sampling terminal mending intelligent compact type capacitor altogether with described point.
Described drawer type combination intelligent low-voltage circuit, is characterized in that: described current transformer is connected with ammeter by wire.
In the utility model, inlet wire air switch is designed to basement module, and the three-phase indicating value of air switch is shown by the ammeter being arranged on this basement; First, second and third residual current action breaker is designed to three identical outlet modules; Divide benefit intelligent compact type capacitor, altogether benefit intelligent compact type capacitor and the circuit breaker be in series and self healing capacitor form common benefit, point benefit respectively and determine complementary modulus block, and form intelligent integrated low-voltage reactive compensator capable.
The beneficial effects of the utility model:
1, in economic benefit, be mainly reflected in aspect of reducing the loss, insulation module is closed in outlet and capacitor unit design, during internal fault, can not have an impact to adjacent cells, avoid former open type and fix the common fault coverage expansion accident of power distribution cabinet circuit, reduce power failure range; Directly can changing with drawer for subsequent use, without the need to carrying out breakdown repair at the scene, shortening interruption duration.
2, on safety benefit, be divided into according to function the room that works alone, isolated in charged position and peripheral operation interface, the live parts such as busbar thoroughly " insulating ", reduce in operation the risk of touching charged position; Power distribution cabinet outlet is designed to modularization drawer, avoids the risk of on-load drawing plug-in strip, ensure that safe and stable operation and the simple operation of power distribution cabinet, stop the incident potential safety hazard of privately stopping power transmission in rural area.
3, in social benefit; reduce inspection rack district power failure range; decrease interruption duration; improve rural power grids power supply reliability; be designed to be convenient to disperse transport and the on-the-spot drawer type functional module combined on the spot to improve the protectiveness of personnel, the fail safe of equipment, impel operation field ground connection simple to operate, quick, reliable.
Accompanying drawing explanation
Fig. 1 is the utility model circuit theory diagrams.
Embodiment
See Fig. 1, a kind of drawer type combination intelligent low-voltage circuit, include inlet wire circuit, inlet wire circuit is connected with air switch 1, the leading-out terminal of air switch 1 is connected with current transformer 3 and busbar 4 in turn, current transformer 3 is parallel with first respectively, two, three sampling mutual inductors 12, busbar 4 is connected with first, two, three, four inlet wire primary connection terminals 5, first, two, the leading-out terminal of three inlet wire primary connection terminals is connected to first, two, three residual current action breakers 6, first, two, the end of incoming cables of three residual current action breakers 6 is connected to first, two, three lightning arresters 7, first, two, the leading-out terminal of three residual current action breakers 6 is connected to first, two, three outlet primary connection terminals 14, the leading-out terminal of the 4th inlet wire primary connection terminal is parallel with point a benefit intelligent compact type capacitor 8, altogether benefit intelligent compact type capacitor 9 and the circuit breaker 10 be in series and a self healing capacitor 11 respectively, first, second and third sampling mutual inductor 12 is connected with inlet wire secondary wiring terminals 13 by wire, the leading-out terminal of inlet wire secondary wiring terminals 13 respectively with point mend intelligent compact type capacitor 8 and be connected with the sampling terminal mending intelligent compact type capacitor 9 altogether.
In the utility model, current transformer 3 is connected with ammeter 2 by wire, and the three-phase indicating value of air switch 1 is shown by ammeter.
Claims (2)
1. a drawer type combination intelligent low-voltage circuit, include inlet wire circuit, it is characterized in that: described inlet wire circuit is connected with air switch, the leading-out terminal of described air switch is connected with current transformer and busbar in turn, described current transformer is parallel with first respectively, two, three sampling mutual inductors, described busbar is connected with first, two, three, four inlet wire primary connection terminals, described first, two, the leading-out terminal of three inlet wire primary connection terminals is connected to first, two, three residual current action breakers, described first, two, the end of incoming cables of three residual current action breakers is connected to first, two, three lightning arresters, first, two, the leading-out terminal of three residual current action breakers is connected to first, two, three outlet primary connection terminals, the leading-out terminal of described 4th inlet wire primary connection terminal is parallel with point a benefit intelligent compact type capacitor, altogether benefit intelligent compact type capacitor and the circuit breaker be in series and a self healing capacitor respectively, first, second and third described sampling mutual inductor is connected with inlet wire secondary wiring terminals by wire, and the leading-out terminal of described inlet wire secondary wiring terminals is mended intelligent compact type capacitor respectively and is connected with the sampling terminal mending intelligent compact type capacitor altogether with described point.
2. drawer type combination intelligent low-voltage circuit according to claim 1, is characterized in that: described current transformer is connected with ammeter by wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956564.2U CN205160080U (en) | 2015-11-26 | 2015-11-26 | Intelligent low tension circuit of drawer type combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956564.2U CN205160080U (en) | 2015-11-26 | 2015-11-26 | Intelligent low tension circuit of drawer type combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205160080U true CN205160080U (en) | 2016-04-13 |
Family
ID=55695732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520956564.2U Expired - Fee Related CN205160080U (en) | 2015-11-26 | 2015-11-26 | Intelligent low tension circuit of drawer type combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205160080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885669A (en) * | 2021-02-07 | 2021-06-01 | 深圳国鑫电力设备制造有限公司 | Improved intelligent plastic shell air switch |
-
2015
- 2015-11-26 CN CN201520956564.2U patent/CN205160080U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885669A (en) * | 2021-02-07 | 2021-06-01 | 深圳国鑫电力设备制造有限公司 | Improved intelligent plastic shell air switch |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20201126 |