CN104836124A - Capacitor reactive power compensation cabinet - Google Patents
Capacitor reactive power compensation cabinet Download PDFInfo
- Publication number
- CN104836124A CN104836124A CN201510202818.6A CN201510202818A CN104836124A CN 104836124 A CN104836124 A CN 104836124A CN 201510202818 A CN201510202818 A CN 201510202818A CN 104836124 A CN104836124 A CN 104836124A
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- CN
- China
- Prior art keywords
- phase
- cabinet
- compensation
- capacitor
- compensation unit
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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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1828—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepwise control, the possibility of switching in or out the entire compensating arrangement not being considered as stepwise control
-
- 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 invention discloses a capacitor reactive power compensation cabinet. The capacitor reactive power compensation cabinet comprises a cabinet body and a cabinet door; a wire incoming chamber, a circuit breaker chamber and an element wiring chamber are arranged in the cabinet body; three-phase wire incoming holes are arranged in the wire incoming chamber; copper bars are arranged in the three-phase wire incoming holes and are adopted as main busbars; a three-phase co-compensation unit and a separate phase compensation unit are arranged in the cabinet body; the three-phase co-compensation unit is three co-compensation single-phase circuits which are correspondingly connected with the busbars in each phase respectively, wherein each co-compensation single-phase circuit is provided with a fuse, a silicon controlled rectifier composite switching switch, a reactor and a capacitor which are connected together through wires; and the separate phase compensation unit is three separate compensation single-phase circuits which are correspondingly connected with the busbars in each phase respectively and are electrically connected with the fuses, the silicon controlled rectifier composite switching switches, the reactors and the capacitors. According to the capacitor reactive power compensation cabinet of the invention, single compensation and coordinated use of overall compensation and separate compensation can be completed through the switching switches in reactive power compensation according to the specific situations of a power system, and therefore, the solving of the technical problem of impact on load compensation caused by three-phase unbalance can be facilitated.
Description
Technical field
The present invention relates to a kind of electrical control cabinet, be specifically related to a kind of capacitance reactive compensation cabinet, belong to electrician's technical field of electricity.
Background technology
Reactive power compensation works the power factor improving electrical network in electric power system, reduce the loss of supply transformer and conveying circuit, improve power supplying efficiency, improve power supply environment, so reactive power compensation device is in a very important position in power supply system, rational selection compensation arrangement, the loss reducing network to greatest extent can be accomplished, power grid quality is improved, but as selected or improper use, the voltage fluctuation of electric power system may be caused, the factors such as harmonic wave increase, in practical power systems, major part load is all asynchronous motor.And the equivalent electric circuit of an asynchronous motor can regard the series circuit of resistance and inductance as, the phase difference of its voltage and electric current is larger, power factor is lower, and the effect of capacitor compensation cabinet is equivalent to shunt capacitor thereon, the electric current of capacitor will offset a part of inductive current, thus inductive current is reduced, total current reduces thereupon, the phase difference of voltage and electric current diminishes, power factor is improved, but in existing technology, the patent documentation being 201310578419.0 as Chinese Patent Application No. provides a kind of reactive compensation cabinet, although its effect can playing common benefit still can not play the effect of a rational allocation under different situations, due to user load, to use frequency converter more, mostly the fling-cut switch adopted in capacitor compensation cabinet is that contact connects, there is power back-off cut-in and cut-off contactor contact and easily scaling loss occurs, capacitance current impacts the shortcomings such as large, and existing compensation way is generally that three-phase total compensation and a point benefit are separately carried out separately, do not play the effect that cooperation is auxiliary between the two, and have a variety of for the situation that possibility emergent power factor in the middle of electric power system reduces, have plenty of single-phase scarce idle, if some is lost more than gain to adopt this time full benefit just to seem, and only adopt single-phase compensation not reach requirement when three-phase activity coefficient all reduces.
Summary of the invention
For prior art above shortcomings, the present invention proposes a kind of capacitance reactive compensation cabinet, it comprises cabinet and cabinet door, basement is provided with in described cabinet, breaker chamber and element interstar connection room, three-phase entrance hole is provided with in its basement, copper bar is provided with as main bus bar in three-phase entrance hole, three-phase total compensation unit and phase splitting compensation unit is provided with in cabinet, described three-phase total compensation unit is three common benefit single phase circuits of connecting corresponding to each phase copper bar respectively, it is mended single phase circuit altogether and is provided with fuse, controllable silicon composite switching switch, reactor and capacitor, and linked together by wire, described phase splitting compensation unit is also divided into three point benefit single phase circuits of connecting corresponding to three-phase copper bar respectively, and be also electrically connected with fuse, controllable silicon composite switching switch, reactor and capacitor, the present invention when reactive power compensation can according to the concrete condition of electric power system by fling-cut switch complete complete mend with point separate compensation of mending and with the use of, be conducive to the technical problem solving the compensation of three-phase imbalance impact load.
The present invention solves its technical problem, the technical scheme adopted is: a kind of capacitance reactive compensation cabinet, comprise cabinet and cabinet door, described cabinet and cabinet door are connected through the hinge, cabinet door is provided with controller, and its design feature is: described cabinet inside is provided with basement, breaker chamber and element interstar connection room from top to bottom, is provided with three-phase entrance hole in described basement, described three-phase entrance hole is arranged side by side, and is provided with copper bar as main bus bar in three-phase entrance hole; Three-phase total compensation unit, phase splitting compensation unit, circuit breaker and contactor is also provided with in cabinet, described three-phase total compensation unit is three common benefit single phase circuits of connecting corresponding to each phase copper bar respectively, described single phase circuit of mending altogether is provided with fuse, controllable silicon composite switching switch, reactor and capacitor, and is linked together by wire; Described phase splitting compensation unit is also divided into three point benefit single phase circuits of connecting corresponding to three-phase copper bar respectively, and described point of benefit single phase circuit is also electrically connected with fuse, controllable silicon composite switching switch, reactor and capacitor.
Further, described fuse, controllable silicon composite switching switch, reactor and capacitor are placed in element interstar connection room, described element interstar connection room is divided into front and rear, described capacitor is located at rear portion, and described controllable silicon composite switching switch, reactor, fuse are placed on front portion from top to bottom successively.
Further, described circuit breaker is arranged on breaker chamber, and described circuit breaker is handcart type breaker.
Preferably, the described capacitor mending single phase circuit altogether joins end to end through contactor.
Preferably, the capacitor of described point of benefit single phase circuit is six electric capacity by contactor parallel connection, and passes through ground connection.
Preferably, described three-phase total compensation unit and phase splitting compensation unit are all electrically connected with copper bar by instrument transformer and described circuit breaker.
Preferably, described cabinet inside is also provided with Temperature Humidity Sensor, and cabinet or cabinet door are also provided with reception display, and described reception display is electrically connected with controller.
Preferably, described cabinet inside is also provided with fever tablet, and described fever tablet is electrically connected with controller.
Further, described cabinet is also provided with lightning arrester, described lightning arrester passes through ground connection.
Preferably, also radiator fan is provided with at described cabinet top.
Compared with prior art, the invention has the beneficial effects as follows: a kind of reactive compensation cabinet that the present invention proposes, by three-phase is mended full circuit and single-phase compensating circuit and to be placed in the middle of same cabinet and with contactless controllable silicon composite switching switch with the use of, when reactive power compensation can according to the concrete condition of electric power system by fling-cut switch complete complete mend with point separate compensation of mending and with the use of, solve the technical barrier that three-phase imbalance impact load compensates, intelligent controller is used to control also to optimize its switching mode, a point benefit can be reasonably selected to mend together according to the idle deletion condition of electric power system, also the efficiency operation object being realized multiple compensation by a cabinet is reached, and controllable silicon composite switching switch can realize hierarchical capacitor group and carries out fast without transition switching, overcome traditional reactive power compensation cut-in and cut-off contactor pitting of contacts, capacitance current impacts large shortcoming.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present invention are elaborated.
Fig. 1 is a kind of reactive compensation cabinet structural representation of the present invention.
Fig. 2 is a kind of reactive compensation cabinet of the present invention structural representation at closing time.
Fig. 3 is the dorsal view of Fig. 1.
Fig. 4 is the left view of Fig. 1.
Fig. 5 is the vertical view of Fig. 1.
Fig. 6 is the circuit theory diagrams of a kind of reactive compensation cabinet of the present invention.
In figure: 1. capacitance reactive compensation cabinet; 2. cabinet; 201. cabinet doors; 3. basement; 4. breaker chamber; 5. element interstar connection room; 6. three-phase entrance hole; 7. copper bar; 401. circuit breaker; 8. controller; 9. contactor; 10. controllable silicon composite switching switch; 11. reactors; 12. capacitors; 501. anterior; 502. rear portion; 13. instrument transformers; 14. Temperature Humidity Sensors; 15. receive display; 16. fever tablets; 17. lightning arresters; 18. earth connections; 19. radiator fans; 20. fuses.
Specific embodiments
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.
As shown in Figures 1 to 6, the first specific embodiments of the present invention is: a kind of capacitance reactive compensation cabinet, comprise cabinet 2 and cabinet door 201, described cabinet 2 is connected through the hinge with cabinet door 201, described cabinet 2 inside is provided with basement 3 from top to bottom, breaker chamber 4 and element interstar connection room 5, three-phase entrance hole 6 is provided with on the left of described basement 3, described three-phase entrance hole 6 is arranged side by side, copper bar 7 is provided with as main bus bar in three-phase entrance hole 6, described capacitance reactive compensation cabinet 1 is provided with three-phase total compensation unit, phase splitting compensation unit, circuit breaker 401, contactor 9 and controller 8, described three-phase total compensation unit is three common benefit single phase circuits of connecting corresponding to each phase copper bar 7 respectively, described single phase circuit of mending altogether is provided with fuse 20, controllable silicon composite switching switch 10, reactor 11 and capacitor 12, and linked together by wire, described phase splitting compensation unit is three point benefit single phase circuits of connecting corresponding to three-phase copper bar 7 respectively, and point benefit single phase circuit is also connected by wire with fuse 20, controllable silicon composite switching switch 10, reactor 11 and capacitor 12, namely mends single phase circuit altogether and share electric components with a point benefit single phase circuit.
Described fuse 20, controllable silicon composite switching switch 10, reactor 11 and capacitor 12 are placed in element interstar connection room 5, described element interstar connection room 5 is divided into anterior 501 and rear portion 502, described capacitor 12 is located at rear portion 502, described controllable silicon composite switching switch 10, reactor 11, fuse 20 is successively set on anterior 501 from top to bottom, described controller 8 is DSP and is located on cabinet door 201, because existing compensation way is generally three-phase total compensation and a point benefit is separately carry out separately, do not play the effect that cooperation is auxiliary between the two, and the situation that in the middle of electric power system, possibility emergent power factor reduces has a variety of, have plenty of single-phase scarce idle, if some is lost more than gain to adopt this time full benefit just to seem, and only adopt single-phase compensation will not reach requirement when three-phase activity coefficient all reduces, and in the present embodiment, by three-phase total compensation circuit and single-phase compensating circuit to be placed in the middle of same cabinet and with contactless controllable silicon composite switching switch 10 with the use of, when reactive power compensation can according to the concrete condition of electric power system by controllable silicon composite switching switch 10 complete common benefit and the separate compensation of point to mend and with the use of, solve the technical barrier that three-phase imbalance impact load compensates, intelligentized controller 8 is adopted to realize Based Intelligent Control, intelligent optimization switching mode, in the dynamic response time of regulation, Multilevel compensating one-time-reach-place, also the efficiency operation object being realized multiple compensation by a cabinet is reached, and controllable silicon composite switching switch 10 can realize hierarchical capacitor group and carries out fast without transition switching, overcome traditional reactive power compensation cut-in and cut-off contactor pitting of contacts, capacitance current impacts large shortcoming, described controller 8 is Controller for Dynamic VAR Compensation, adopt the "smart" products of DSP structure, specially for the new distribution watch-dog of dynamic passive compensation control system's development, collection dynamic passive compensation controls, harmonic, electric parameter measurement, out-of-limit detection, the several functions such as logout and data communication is in one.
It should be noted that, the capacitor unit of described three-phase total compensation single phase circuit joins end to end through contactor 9, the capacitor unit of point benefit single phase circuit of described phase splitting compensation unit be six by the capacitor 12 of contactor 9 parallel connection and by earth connection 18 ground connection, described three-phase total compensation unit and phase splitting compensation units shared electric components, described contactor 9 is exactly the effect playing a senior relay in the present embodiment, when needing to adopt common benefit in the middle of system, the wire that capacitor 12 head and the tail connect just is connected by described contactor 9, and adopt when point to mend and just disconnected by contactor 9, achieve common benefit and a point automatic switchover of mending operation, and hierarchical capacitor group can also be realized by controllable silicon composite switching switch 10 and carry out fast without transition switching.
In addition, described three-phase total compensation unit and phase splitting compensation unit are all connected with copper bar 7 with described circuit breaker 401 by instrument transformer 13, copper bar 7 can play a part to be as main bus bar to transmit rated current, and consider the kelvin effect of copper bar 7, the selection of described copper bar 7 needs to select according to national standard, and described circuit breaker 401 is handcart type breaker, and be placed in breaker chamber 4 together with contactor, more convenient like this installation, and described cabinet 2 inside is provided with Temperature Humidity Sensor 14, described cabinet is provided with and receives display 15, described reception display 15 is electrically connected with controller 8, the described inner left surface of cabinet 2 and right surface are all provided with fever tablet 16, described fever tablet 16 is connected on controller 8 by wire.It is inner that Temperature Humidity Sensor 14 is in cabinet 2, he can detect and collect the temperature and humidity of cabinet 2 inside, then the temperature and humidity collected by data wire passes to controller 8, controller 8 is electrically connected with reception display 15, and the temperature and humidity of cabinet 2 inside is demonstrated by receiving display 15, and controller 8 control fever tablet 16 when cabinet 2 needs heating to dry is generated heat.Such security setting can ensure the work of cupboard safe and reasonable in all cases.
Simultaneously, as described in Figure 3, present embodiment is also fixed with lightning arrester 17 on cabinet 2, described lightning arrester 17 and cabinet are for be threaded and by earth connection 18 ground connection, the effect of lightning arrester prevents switching overvoltage, atmospheric over-voltage and resonance overvoltage, when the present invention occurs superpotential time, voltage just can pass in the earth and go by lightning arrester 17, as shown in Figure 5, described cabinet 2 top is provided with 4 radiator fans 19, and evenly put, the effect of radiator fan 19 is that the heat dissipation that produced compensating cabinet inside is in the middle of air, the temperature preventing it from occurring because dispelling the heat deficiency is too high, and the degree of protection of described cabinet shell is IP40, meet national standard, the object of use can be reached.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (8)
1. a capacitance reactive compensation cabinet, comprise cabinet and cabinet door, described cabinet and cabinet door are connected through the hinge, cabinet door is provided with controller, it is characterized in that: described cabinet inside is provided with basement, breaker chamber and element interstar connection room from top to bottom, in described basement, be provided with three-phase entrance hole, described three-phase entrance hole is arranged side by side, and is provided with copper bar as main bus bar in three-phase entrance hole; Three-phase total compensation unit, phase splitting compensation unit, circuit breaker and contactor is also provided with in cabinet, described three-phase total compensation unit is three common benefit single phase circuits of connecting corresponding to each phase copper bar respectively, described single phase circuit of mending altogether is provided with fuse, controllable silicon composite switching switch, reactor and capacitor, and is linked together by wire; Described phase splitting compensation unit is also divided into three point benefit single phase circuits of connecting corresponding to three-phase copper bar respectively, and described point of benefit single phase circuit is also electrically connected with fuse, controllable silicon composite switching switch, reactor and capacitor; The described capacitor mending single phase circuit altogether joins end to end through contactor, and described three-phase total compensation unit and phase splitting compensation unit are all electrically connected with copper bar by instrument transformer and described circuit breaker.
2. a kind of capacitance reactive compensation cabinet according to claim 1, is characterized in that: the capacitor of described point of benefit single phase circuit is six electric capacity by contactor parallel connection, and passes through ground connection.
3. a kind of capacitance reactive compensation cabinet according to claim 1, it is characterized in that: described fuse, controllable silicon composite switching switch, reactor and capacitor are placed in element interstar connection room, described element interstar connection room is divided into front and rear, described capacitor is located at rear portion, and described controllable silicon composite switching switch, reactor, fuse are placed on front portion from top to bottom successively.
4. a kind of capacitance reactive compensation cabinet according to claim 1, is characterized in that: described circuit breaker is arranged on breaker chamber, and described circuit breaker is handcart type breaker.
5. a kind of capacitance reactive compensation cabinet according to any one of claim 1 to 4, is characterized in that: described cabinet inside is also provided with Temperature Humidity Sensor, cabinet or cabinet door are also provided with reception display, and described reception display is electrically connected with controller.
6. a kind of capacitance reactive compensation cabinet according to claim 5, is characterized in that: described cabinet inside is also provided with fever tablet, and described fever tablet is electrically connected with controller.
7. a kind of capacitance reactive compensation cabinet according to any one of claim 1 to 4, it is characterized in that: on described cabinet, be also provided with lightning arrester, described lightning arrester passes through ground connection.
8. a kind of capacitance reactive compensation cabinet according to any one of claim 1 to 4, is characterized in that: be also provided with radiator fan at described cabinet top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202818.6A CN104836124A (en) | 2015-04-26 | 2015-04-26 | Capacitor reactive power compensation cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202818.6A CN104836124A (en) | 2015-04-26 | 2015-04-26 | Capacitor reactive power compensation cabinet |
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| CN104836124A true CN104836124A (en) | 2015-08-12 |
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| CN201510202818.6A Pending CN104836124A (en) | 2015-04-26 | 2015-04-26 | Capacitor reactive power compensation cabinet |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811441A (en) * | 2016-05-19 | 2016-07-27 | 山东电工电气集团新能科技有限公司 | Three-phase unbalance and reactive power control device and method of interphase capacitor |
| CN106026123A (en) * | 2016-06-27 | 2016-10-12 | 国网江苏省电力公司盐城供电公司 | Reactive power compensator |
| CN106159977A (en) * | 2016-08-19 | 2016-11-23 | 保定市龙跃电力器材制造有限公司 | A kind of reactive power compensation case |
| CN106786655A (en) * | 2017-01-04 | 2017-05-31 | 繁昌县易能科技有限责任公司 | A kind of adjustable capacitor compensation cabinet |
| CN107134793A (en) * | 2017-06-22 | 2017-09-05 | 南京林恒机械制造有限公司 | A kind of Non-power compensated energy saver |
| CN108365605A (en) * | 2018-03-08 | 2018-08-03 | 西安爱科赛博电气股份有限公司 | A kind of low-voltage network three-phase line low-voltage governing system and method |
| CN108448592A (en) * | 2018-06-06 | 2018-08-24 | 浙江联能电气有限公司 | A kind of SCR type capacitor box of pulsed triggering |
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| CN203553955U (en) * | 2013-11-14 | 2014-04-16 | 天津市沃德电力设备有限公司 | Reactive capacitance compensation cabinet |
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| CN1812219A (en) * | 2005-01-25 | 2006-08-02 | 齐志江 | Apparatus for effectively compensating three-phase unbalance load and reactive power |
| CN101340097A (en) * | 2008-05-17 | 2009-01-07 | 曾卫民 | Intelligent modularized reactive compensator |
| CN103138272A (en) * | 2011-12-02 | 2013-06-05 | 上海连成（集团）有限公司 | Total-sub compensation mixed compensation cabinet |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811441A (en) * | 2016-05-19 | 2016-07-27 | 山东电工电气集团新能科技有限公司 | Three-phase unbalance and reactive power control device and method of interphase capacitor |
| CN106026123A (en) * | 2016-06-27 | 2016-10-12 | 国网江苏省电力公司盐城供电公司 | Reactive power compensator |
| CN106159977A (en) * | 2016-08-19 | 2016-11-23 | 保定市龙跃电力器材制造有限公司 | A kind of reactive power compensation case |
| CN106786655A (en) * | 2017-01-04 | 2017-05-31 | 繁昌县易能科技有限责任公司 | A kind of adjustable capacitor compensation cabinet |
| CN107134793A (en) * | 2017-06-22 | 2017-09-05 | 南京林恒机械制造有限公司 | A kind of Non-power compensated energy saver |
| CN108365605A (en) * | 2018-03-08 | 2018-08-03 | 西安爱科赛博电气股份有限公司 | A kind of low-voltage network three-phase line low-voltage governing system and method |
| CN108448592A (en) * | 2018-06-06 | 2018-08-24 | 浙江联能电气有限公司 | A kind of SCR type capacitor box of pulsed triggering |
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Address after: 611730, No. 1720, 1 floor, No. 69, Tianfu Third Street, Chengdu hi tech Zone, Sichuan, 17 Applicant after: Chengdu constant force reaches Science and Technology Ltd. Address before: 611730, No. 1, 17 floor, No. 69, Tianfu Third Street, Chengdu hi tech Zone, Sichuan, Chengdu, 1720 Applicant before: Chengdu constant force reaches Science and Technology Ltd. |
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