CN203553955U - Reactive capacitance compensation cabinet - Google Patents
Reactive capacitance compensation cabinet Download PDFInfo
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- CN203553955U CN203553955U CN201320727979.3U CN201320727979U CN203553955U CN 203553955 U CN203553955 U CN 203553955U CN 201320727979 U CN201320727979 U CN 201320727979U CN 203553955 U CN203553955 U CN 203553955U
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- phase
- compensation
- capacitor
- compensation unit
- cabinet
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- 239000003990 capacitor Substances 0.000 claims abstract description 34
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- 239000010703 silicon Substances 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 230000008901 benefit Effects 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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
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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
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model provides a reactive capacitance compensation cabinet. The cabinet comprises a cabinet body, and a plurality of groups of three-phase compensation units, a plurality of groups of single-phase compensation units, a breaker, and a controller are disposed inside the cabinet body. Each three-phase compensation unit comprises three compensating single-phase circuits connected to each phase of a three-phase power grid correspondingly. Each compensating single-phase circuit comprises a fuse, a silicon-controlled composite switching switch, a reactor, and a capacitor unit. The capacitor units of the three compensating single-phase circuits are connected end-to-end. The beneficial effects of the cabinet are that the silicon-controlled composite switching switches achieve quick no-transition switching of the multistage capacitor banks, and overcomes such defects as burnt contacts of contactors and large capacitive current impacts; the three-phase compensation units cooperate with the single-phase compensation units to solve the technical problem of three-phase unbalanced impact load compensation; the intelligent controller takes control and intelligently optimizes switching modes, so that in a prescribed dynamic response time, multistage compensation is completed in one step, and the power factor is greater than 0.90 after compensation.
Description
Technical field
The utility model belongs to power transmission and distribution device technique field, especially relates to a kind of reactive capacitance compensation cabinet.
Background technology
In practical power systems, most of load is asynchronous motor.Its equivalent electric circuit can be regarded the series circuit of resistance and inductance as, and the phase difference of its voltage and electric current is larger, and power factor is lower.The effect of capacitor compensation cabinet is equivalent to shunt capacitor thereon, and the electric current of capacitor will be offset a part of inductive current, thereby inductive current is reduced, and total current reduces thereupon, and the phase difference of voltage and electric current diminishes, and [2] improve power factor.
In existing technology, due to user load, to use frequency converter more, and what the fling-cut switch adopting at capacitor compensation cabinet adopted is that contact connects, and exists power back-off cut-in and cut-off contactor contact that scaling loss easily occurs, capacitance current impacts the shortcomings such as large.Existing compensation way is to adopt three-phase to compensate simultaneously, to each phase load, can not play good compensation effect.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of reactive capacitance compensation cabinet, is especially applicable to electricity in load frequently in the many environment of element.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A reactive capacitance compensation cabinet, comprises cabinet, it is characterized in that: in described cabinet, be provided with some groups of three-phase total compensation unit, some component phase compensating units, circuit breaker and controller,
Described in each three-phase total compensation unit include three respectively with the common benefit single phase circuit of each corresponding connection of three phase network, the described single phase circuit of mending altogether comprises fuse, controllable silicon composite switching switch, reactor and the capacitor unit being electrically connected to successively, described capacitor unit comprises two capacitors in parallel, and three capacitor units of mending altogether single phase circuit join end to end;
Described in each phase splitting compensation unit include three respectively with minute benefit single phase circuit of each corresponding connection of three phase network, within described minute, benefit single phase circuit comprises fuse, controllable silicon composite switching switch, reactor and the capacitor being electrically connected to successively, capacitor grounding.
Preferably, described controller is Controller for Dynamic VAR Compensation.
Preferably, described three-phase total compensation unit is all connected with extraneous three phase network by instrument transformer, lightning arrester and described circuit breaker successively with phase splitting compensation unit.
Preferably, the reactor in described three-phase total compensation unit and phase splitting compensation unit is filter reactor.
Preferably, the capacitor in described three-phase total compensation unit and phase splitting compensation unit is filtering capacitor.
Preferably, described every group of three-phase total compensation unit all connects indicator light.
Advantage and the good effect that the utlity model has are:
Adopt contactless controllable silicon composite switching switch as switch; realization is carried out fast without transition switching hierarchical capacitor group; overcome traditional reactive power compensation cut-in and cut-off contactor pitting of contacts; capacitance current impacts the shortcomings such as large; also have without arc reignition, noiselessness, loss is low; component life is long, non-maintaining advantage;
Adopt three-phase total compensation unit and phase splitting compensation unit jointly to complete compensation, solved the technical barrier of three-phase imbalance impact load compensation;
Intelligent controller is controlled, intelligent optimization switching mode, and in the dynamic response time of regulation, Multilevel compensating one-time-reach-place, after compensation, power factor is greater than 0.90.
Accompanying drawing explanation
Fig. 1 is the distribution map of cabinet inner part of the present utility model;
Fig. 2 is the distribution map of another side parts in cabinet of the present utility model;
Fig. 3 is the circuit theory diagrams of three-phase total compensation of the present utility model unit;
Fig. 4 is the circuit theory diagrams of phase splitting compensation of the present utility model unit;
Fig. 5 is the cabinet view in front of the door of cabinet of the present utility model.
In figure:
1, cabinet 2, controller 3, fuse
4, controllable silicon composite switching switch 5, reactor 6, capacitor
7, circuit breaker 8, voltmeter 9, ammeter
10, secondary wiring terminals
Embodiment
As shown in Fig. 1 to 5, a kind of reactive capacitance compensation cabinet of the present utility model, comprise cabinet 1, in described cabinet 1, be provided with some groups of three-phase total compensation unit, some component phase compensating units, circuit breaker 7 and controller 2, the group number of described three-phase total compensation unit and phase splitting compensation unit can combine definite according to the capacitance size of required switching.
Described controller 2 is Controller for Dynamic VAR Compensation, the "smart" products that adopt the bi-processor architecture of DSP digital signal processor and MPU microprocessor composition, be the novel distribution monitor equipment of developing for dynamic passive compensation control system specially, integrate the several functions such as dynamic passive compensation control, harmonic, electric parameter measurement, out-of-limit detection, logout and data communication; (producer and the model of Controller for Dynamic VAR Compensation please be provided)
As shown in Figure 3, described in each three-phase total compensation unit include three respectively with the common benefit single phase circuit of each corresponding connection of three phase network, the described single phase circuit of mending altogether comprises fuse 3, controllable silicon composite switching switch 4, reactor 5 and the capacitor unit being electrically connected to successively, described capacitor unit comprises that 6, three capacitor units of mending altogether single phase circuit of two capacitors in parallel join end to end;
As shown in Figure 4, described in each phase splitting compensation unit include three respectively with minute benefit single phase circuit of each corresponding connection of three phase network, within described minute, benefit single phase circuit comprises fuse 3, controllable silicon composite switching switch 4, reactor 5 and the capacitor 6 being electrically connected to successively, capacitor 6 ground connection;
The contactless controllable silicon composite switching switch 4 that adopts high-power silicon controlled rectifier to form in said structure, follow the tracks of fast the variation of load reactive current, to L-C bank of filters zero cross fired switching, any voltage that can be after capacitor excision, the automatic input of any state can phase-splitting switching, excision process is without switching overvoltage, arc reignition phenomenon, response time≤20ms, can frequent switching, noiselessness, long service life, maintenance capacity is few, and possesses overheat protector, the output of reporting to the police moves the functions such as indication, adopt the operation conditions of Single-chip Controlling switching intelligent monitoring silicon controlled temperature and load, possesses perfect defencive function, input signal and the isolation of control signal photoelectricity, antijamming capability is strong, stable and reliable for performance,
The preferred filter reactor of reactor 5 in described three-phase total compensation unit and phase splitting compensation unit, to adopt special process to make, production standard is pressed high voltage reactor standard and is made, coil adopts epoxide resin integrated poured, the linearity, dielectric strength are high, eddy current and stray loss are low, and noise is little, and dynamic thermal stability is good.Can high accuracy suppress to administer that harmonic wave be stopped overcurrent and harmonic wave amplifies, the operation reliably and with long-term in the situation that external environmental condition is severe of assurance equipment;
The preferred filtering capacitor of capacitor 6 in described three-phase total compensation unit and phase splitting compensation unit, is to adopt special material, special process to make, and shock resistance, anti-harmonic wave ability are strong, long service life;
Described three-phase total compensation unit is all connected with extraneous three phase network by instrument transformer, lightning arrester and described circuit breaker 7 successively with phase splitting compensation unit; described circuit breaker 7 controls whole three-phase total compensation unit and whether work phase splitting compensation unit, and instrument transformer and lightning arrester further play a protective role.
In order to observe better, more intuitively the working condition of each unit, described every group of three-phase total compensation unit all connects indicator light, and during compensation work, indicator light is bright.
Described controllable silicon composite switching switch 4 is all connected with controller 2, described controller 2 is connected with the detecting unit that detects three phase network, detecting unit sends the signal of detection to controller 2, controller 2 carries out the calculating of every phase reactive factor, rear automatic analysis calculates the size of the electric capacity that needs switching, and by result of calculation, the front panel by cabinet is provided with ammeter 9, voltmeter 8, signal lamp and shows simultaneously; Controller 2 is by first controlling three-phase total compensation cell operation, then controls phase splitting compensation cell operation, realizes each compensation fine setting of electricity mutually, finally realizes distribution system power factor and reaches compensation optimal value.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (6)
1. a reactive capacitance compensation cabinet, comprises cabinet, it is characterized in that: in described cabinet, be provided with some groups of three-phase total compensation unit, some component phase compensating units, circuit breaker and controller,
Described in each three-phase total compensation unit include three respectively with the common benefit single phase circuit of each corresponding connection of three phase network, the described single phase circuit of mending altogether comprises fuse, controllable silicon composite switching switch, reactor and the capacitor unit being electrically connected to successively, described capacitor unit comprises two capacitors in parallel, and three capacitor units of mending altogether single phase circuit join end to end;
Described in each phase splitting compensation unit include three respectively with minute benefit single phase circuit of each corresponding connection of three phase network, within described minute, benefit single phase circuit comprises fuse, controllable silicon composite switching switch, reactor and the capacitor being electrically connected to successively, capacitor grounding.
2. reactive capacitance compensation cabinet according to claim 1, is characterized in that: described controller is Controller for Dynamic VAR Compensation.
3. reactive capacitance compensation cabinet according to claim 1 and 2, is characterized in that: described three-phase total compensation unit is all connected with extraneous three phase network by instrument transformer, lightning arrester and described circuit breaker successively with phase splitting compensation unit.
4. reactive capacitance compensation cabinet according to claim 1, is characterized in that: the reactor in described three-phase total compensation unit and phase splitting compensation unit is filter reactor.
5. reactive capacitance compensation cabinet according to claim 1, is characterized in that: the capacitor in described three-phase total compensation unit and phase splitting compensation unit is filtering capacitor.
6. reactive capacitance compensation cabinet according to claim 1, is characterized in that: described every group of three-phase total compensation unit all connects indicator light.
Priority Applications (1)
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CN201320727979.3U CN203553955U (en) | 2013-11-14 | 2013-11-14 | Reactive capacitance compensation cabinet |
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CN201320727979.3U CN203553955U (en) | 2013-11-14 | 2013-11-14 | Reactive capacitance compensation cabinet |
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CN203553955U true CN203553955U (en) | 2014-04-16 |
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CN201320727979.3U Expired - Fee Related CN203553955U (en) | 2013-11-14 | 2013-11-14 | Reactive capacitance compensation cabinet |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103606933A (en) * | 2013-11-14 | 2014-02-26 | 天津市沃德电力设备有限公司 | Reactive capacitor compensation cabinet |
CN104201695A (en) * | 2014-09-15 | 2014-12-10 | 巨石集团有限公司 | Reactive compensation device and construction method thereof |
CN104836124A (en) * | 2015-04-26 | 2015-08-12 | 成都恒力达科技有限公司 | Capacitor reactive power compensation cabinet |
-
2013
- 2013-11-14 CN CN201320727979.3U patent/CN203553955U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103606933A (en) * | 2013-11-14 | 2014-02-26 | 天津市沃德电力设备有限公司 | Reactive capacitor compensation cabinet |
CN104201695A (en) * | 2014-09-15 | 2014-12-10 | 巨石集团有限公司 | Reactive compensation device and construction method thereof |
CN104836124A (en) * | 2015-04-26 | 2015-08-12 | 成都恒力达科技有限公司 | Capacitor reactive power compensation cabinet |
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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: 20140416 |