CN203445621U - Reactive compensation control electrical cabinet - Google Patents

Reactive compensation control electrical cabinet Download PDF

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Publication number
CN203445621U
CN203445621U CN201320538257.3U CN201320538257U CN203445621U CN 203445621 U CN203445621 U CN 203445621U CN 201320538257 U CN201320538257 U CN 201320538257U CN 203445621 U CN203445621 U CN 203445621U
Authority
CN
China
Prior art keywords
compensation control
reactive power
power compensation
electricity cabinet
control electricity
Prior art date
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.)
Expired - Fee Related
Application number
CN201320538257.3U
Other languages
Chinese (zh)
Inventor
刘慎华
黄大勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Hua Chuan Electric Appliance Co., Ltd.
Original Assignee
City Of Sichuan Mianzhu Hua Chuan Electrical Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by City Of Sichuan Mianzhu Hua Chuan Electrical Equipment Co Ltd filed Critical City Of Sichuan Mianzhu Hua Chuan Electrical Equipment Co Ltd
Priority to CN201320538257.3U priority Critical patent/CN203445621U/en
Application granted granted Critical
Publication of CN203445621U publication Critical patent/CN203445621U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30Reactive power compensation

Abstract

The utility model discloses a reactive compensation control electrical cabinet, which belongs to the field of control electrical cabinets. Problems existing in a conventional control electrical cabinet and characterized by increased active power loss, line tail end voltage decrease and user electrical network electric energy quality decrease are mainly solved. The reactive compensation control electrical cabinet is mainly composed of a power supply inlet wire terminal (1), a breaker (2), a contactor (3), a relay (4) and a capacitor (5) which are sequentially connected. The reactive compensation control electrical cabinet further comprises a reactive compensation controller (6) used for controlling current and voltage signals. The reactive compensation control electrical cabinet provided by the utility model has the advantages of effectively compensating reactive power, improving electric energy qualities, reducing the loss, etc.

Description

Reactive power compensation control electricity cabinet
Technical field
The utility model relates to a kind of switchgear house, and what be specifically related to is reactive power compensation control electricity cabinet.
Background technology
In the process of electric power system transmission of electric energy, reactive power is not enough, the total current that makes to carry in system is increased, makes to the minimizing of exerting oneself, supply line and the increase of system equipment active power loss, the line end voltage drop of transformer; And for power consumer, from electrical network, draw too much idlely, and not only make the electrical network quality of power supply decline, also affect self electricity consumption and production, the performance of enterprises is declined, even cause fine.
Summary of the invention
The purpose of this utility model is to solve the problem of active power loss increase, line end voltage drop, the decline of the consumer networks quality of power supply, the reactive power compensation control electricity cabinet that provide a kind of effective compensation reactive power, improve the quality of power supply, reduces the wastage.
For solving above-mentioned shortcoming, the technical solution of the utility model is as follows:
Reactive power compensation control electricity cabinet, is mainly comprised of the electric power incoming line terminal, circuit breaker, contactor, relay, the capacitor that connect in turn, also comprises for controlling the idle compensating control of electric current, voltage signal.
As a kind of preferred, described circuit breaker is high-breaking miniature breaker; Described contactor is electric capacity switching contactor; Described relay adopts thermal relay; Described capacitor adopts shunt capacitor.
In order to reach result of use best, simultaneously in order to make the utility model heat dispersion better, outward appearance is more elegant in appearance, the utility model is also provided with frame, and described electric power incoming line terminal, circuit breaker, contactor, relay, capacitor and idle compensating control are all installed in this frame.
As optimum set-up mode, described frame by pillar, be fixed on pillar top top board, be fixed on the base plate of pillar bottom and be arranged at top board and base plate between dividing plate form.
As optimum mounting means, described idle compensating control is fixed on top board, is also fixed with controller switches and loop signal lamp on this top board; Described electric power incoming line terminal is fixed on the pillar between top board and dividing plate; Described circuit breaker, contactor and relay are fixed on dividing plate in turn; Described capacitor is fixed on base plate.
The utility model compared with prior art, has the following advantages and beneficial effect:
1, the utility model can effective compensation reactive power, improve the quality of power supply, reduce the wastage, it is indispensable energy-saving equipment, meanwhile, the utility model provides a set of complete scientific basis for formulating operation power scheme and the equipment increase-volume etc. of economy, safety;
2, to adopt shunt capacitor to carry out reactive power compensation be that a kind of small investment, construction are simple, the compensation way of instant effect to the utility model, it can be easily control capacitance switching on the spot, to reduce line loss, eliminate the weary negative effect bringing to system of idle feedback;
3, the utility model mainly adopts single chip microcomputer technology, gather the data such as the electric current, voltage of computational scheme or controller switching equipment, meritorious, idle and power factor, application region control principle, controls switching power capacitor, realizes reactive power automatic compensation and monitoring power distribution function; The utility model is the switching of control capacitor correctly, makes transformer low voltage three-phase in a basic balance, and makes power factor of electric network be adjusted to optimum state;
4, the utility model can manual switching, again can automatic switching, facilitate user's debugging test and operation; Whether device also has self-checking function, correct for auxiliary examination wiring;
5, in the utility model, user can select contactor, thyristor or combination switch targetedly according to the reactive load frequent degree that fluctuates, and is guaranteeing under the prerequisite in switch superperformance and life-span, reduces cost of investment and loss;
6, the utility model is applicable to 400V low-voltage network, can be widely used in the enterprises such as outdoor desk-top transformer, interior distribution chamber, box-type substation and metallurgy, machinery, mine, railway, chemical industry or low-voltage customer and carry out automatic tracking and compensating, applied widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, the parts name that in figure, Reference numeral is corresponding is called:
1-electric power incoming line terminal, 2-circuit breaker, 3-contactor, 4-relay, 5-capacitor, 6-idle compensating control, 7-pillar, 8-top board, 9-base plate, 10-dividing plate, 11-controller switches, 12-loop signal lamp.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment
Reactive power compensation control electricity cabinet, as shown in Figure 1, mainly by electric power incoming line terminal 1, circuit breaker 2, contactor 3, relay 4, capacitor 5 and idle compensating control 6, formed, its concrete connected mode is as follows: electric power incoming line terminal, circuit breaker, contactor, relay, capacitor connect in turn, and idle compensating control is for controlling electric current, voltage signal.
As set-up mode optimum in the utility model, described circuit breaker is high-breaking miniature breaker; Described relay adopts thermal relay, and described capacitor adopts shunt capacitor.
Described contactor is electric capacity switching contactor; in order effectively to reduce this contactor of cost of the present utility model and loss, can replace with thyristor or combination switch, adopt thyristor or combination switch to replace contactor in the utility model also to belong to the scope that the utility model is protected.That is,, according to the reactive load frequent degree that fluctuates, user can select contactor, thyristor or combination switch targetedly.Wherein, the feature of described three kinds of switches is as follows,
Contactless contactor: impulse current large (maximum can reach 40 times of rated current) during switching capacitance, have arcing, switch life short (being generally less than 10,000 times), but low in energy consumption when through-flow, relatively be applicable to load substantially do not fluctuate or the fluctuate occasion of very frequent (such as load fluctuation, be no more than every day 3 times);
Thyristor switch: zero crossing switching capacitance, impulse current little (1.5 times of rated current), switch life are long, but power consumption very large (4.5W/A) when through-flow, be relatively applicable to the occasion of special frequent fluctuation (every day, fluctuation was greater than 200 times);
Combination switch: zero crossing switching capacitance, impulse current little (1.5 times of rated current), switch life are little compared with long (being greater than 500,000 times), power consumption, is relatively applicable to the occasion of non-special frequent fluctuation (every day, fluctuation was less than 200 times).
Combination switch is a kind of by the switch form of bidirectional thyristor and contactor parallel running, and it is equipped with control circuit, and when switch is dropped into, thyristor first drops into, and during switch excision, after thyristor, excises, and realizes without arc switching, while normally moving, by contactor loaded current.
Because of in certain compensation capacity situation, compensation way is more, and compensation effect is better, but investment is larger, and in order to reach the highest cost performance, the utility model is determined the capacity of single branch road compensation according to negative true lotus fluctuating characteristic, thereby surely compensates way.Wherein, general 2~4 tunnels of selecting of outdoor compensation box, the general 4~12 roads of selecting of indoor compensation box.
In order to make the utility model more succinct, attractive in appearance, reach heat dispersion best simultaneously, electric power incoming line terminal, circuit breaker, contactor, relay, capacitor and idle compensating control in the utility model is all arranged in frame, and the concrete structure of this frame is as follows:
This frame by pillar 7, be fixed on pillar top top board 8, be fixed on the base plate 9 of pillar bottom and be arranged at top board and base plate between dividing plate 10 form.This pillar is four, and this top board, base plate and dividing plate are rectangle, as inscribes as shown in the of 1, and four pillars are individually fixed on rectangular four angles.
Described dividing plate is divided into upper and lower two spaces by support of the present utility model, wherein electric power incoming line terminal is fixed on the pillar in space, fixedly circuit breaker, contactor and relay successively on upper spatial clapboard, this capacitor is fixed on the base plate in lower space, this idle compensating control is fixed on top board, and this top board top is also fixed with controller switches 11 and loop signal lamp 12.
According to above design, just can realize preferably the utility model.

Claims (10)

1. reactive power compensation control electricity cabinet, it is characterized in that, mainly by the electric power incoming line terminal (1) connecting in turn, circuit breaker (2), contactor (3), relay (4), capacitor (5), formed, also comprise the idle compensating control (6) for controlling electric current, voltage signal.
2. reactive power compensation control electricity cabinet according to claim 1, is characterized in that: described circuit breaker (2) is high-breaking miniature breaker.
3. reactive power compensation control electricity cabinet according to claim 1, is characterized in that: described contactor (3) is electric capacity switching contactor.
4. reactive power compensation control electricity cabinet according to claim 1, is characterized in that: described relay (4) adopts thermal relay.
5. reactive power compensation control electricity cabinet according to claim 1, is characterized in that: described capacitor (5) adopts shunt capacitor.
6. according to the reactive power compensation control electricity cabinet described in claim 1~5 any one, it is characterized in that: also comprise frame, described frame by pillar (7), be fixed on pillar (7) top top board (8), be fixed on the base plate (9) of pillar (7) bottom and be arranged at top board (8) and base plate (9) between dividing plate (10) form.
7. reactive power compensation control electricity cabinet according to claim 5, is characterized in that: it is upper that described idle compensating control (6) is fixed on top board (8), is also fixed with controller switches (11) and loop signal lamp (12) on this top board (8).
8. reactive power compensation control electricity cabinet according to claim 6, is characterized in that: described electric power incoming line terminal (1) is fixed on the pillar (7) between top board (8) and dividing plate (10).
9. reactive power compensation control electricity cabinet according to claim 7, is characterized in that: described circuit breaker (2), contactor (3) and relay (4) are fixed on dividing plate (10) in turn.
10. reactive power compensation control electricity cabinet according to claim 8, is characterized in that: described capacitor (5) is fixed on base plate (9).
CN201320538257.3U 2013-09-02 2013-09-02 Reactive compensation control electrical cabinet Expired - Fee Related CN203445621U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320538257.3U CN203445621U (en) 2013-09-02 2013-09-02 Reactive compensation control electrical cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320538257.3U CN203445621U (en) 2013-09-02 2013-09-02 Reactive compensation control electrical cabinet

Publications (1)

Publication Number Publication Date
CN203445621U true CN203445621U (en) 2014-02-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320538257.3U Expired - Fee Related CN203445621U (en) 2013-09-02 2013-09-02 Reactive compensation control electrical cabinet

Country Status (1)

Country Link
CN (1) CN203445621U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109449927A (en) * 2018-11-14 2019-03-08 国网青海省电力公司检修公司 In-situ protection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109449927A (en) * 2018-11-14 2019-03-08 国网青海省电力公司检修公司 In-situ protection device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: SICHUAN HUACHUAN ELECTRIC APPLIANCE LLC

Free format text: FORMER NAME: SICHUAN MIANZHU HUACHUAN ELECTRICAL APPLIANCE CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 618200, Ronghua Town, Mianzhu, Sichuan, Deyang

Patentee after: Sichuan Hua Chuan Electric Appliance Co., Ltd.

Address before: 618200, Ronghua Town, Mianzhu, Sichuan, Deyang

Patentee before: City of Sichuan Mianzhu Hua Chuan electrical equipment Co., Ltd

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: 20140219

Termination date: 20160902