CN203871866U - Low-voltage reactive compensation control system - Google Patents

Low-voltage reactive compensation control system Download PDF

Info

Publication number
CN203871866U
CN203871866U CN201420274288.7U CN201420274288U CN203871866U CN 203871866 U CN203871866 U CN 203871866U CN 201420274288 U CN201420274288 U CN 201420274288U CN 203871866 U CN203871866 U CN 203871866U
Authority
CN
China
Prior art keywords
compensation
branch road
compensation branch
phase
control switch
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
CN201420274288.7U
Other languages
Chinese (zh)
Inventor
葛斐
石雪梅
杨欣
王绪利
刘竹君
贾晋
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.)
State Grid Corp of China SGCC
Economic and Technological Research Institute of State Grid Anhui Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Economic and Technological Research Institute of State Grid Anhui Electric Power 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 State Grid Corp of China SGCC, Economic and Technological Research Institute of State Grid Anhui Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201420274288.7U priority Critical patent/CN203871866U/en
Application granted granted Critical
Publication of CN203871866U publication Critical patent/CN203871866U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

The utility model provides a low-voltage reactive compensation control system, comprising a connector bar, a plurality of control switches, and a current transformer, and also comprises a compensation branch and a measuring monitoring instrument. The compensation branch is connected with the connector bar through the current transformer and the first control switch in sequence. The measuring instrument is connected with the current transformer through a wire. The compensation branch comprises a fixed compensation branch, a split-phase compensation branch, a three-item compensation branch, and a lightning arrester branch which are connected through a compensation branch main line. The reactive compensation control system improves power factor of a power grid, reduces loss of a supply transformer and a conveyer line, improves power supply efficiency, and improves power supply environment.

Description

A kind of low-pressure reactive compensation control system
Technical field
The utility model relates to public compensation technical field, particularly a kind of low-pressure reactive compensation control system.
Background technology
Along with the development of national economy, the task of State Grid's industry is also more arduous, and due to industrial expansion, the reactive loss in electrical network sharply increases now, and the electrical network quality of power supply is worsened, and also increases the weight of burden and the loss of circuit and transformer simultaneously.Nowadays country is just advocating energy-saving and emission-reduction, and therefore the reactive power compensation in electrical network has attracted more concern.No matter industrial load or appliance load, wherein all larger ratios of accounting of inductive load, such as transformer, asynchronous machine and a lot of household electrical appliance are all inductive loads.The natural power factor of these loads is lower, and the reactive power that it consumes ties up and in the electric weight in electric power transfer, accounts for very high ratio.The increase of the reactive power in circuit can cause the reduction of power factor, causes the increase of electric current and the decline of system voltage, thereby increases the loss of circuit and equipment, causes the loss of a large amount of electric energy.Existing power power back-off comprises phase splitting compensation and three-phase compensation, and wherein phase splitting compensation is applied to the inconsistent power supply-distribution system of fluctuation of three-phase load imbalance or three-phase load, and three-phase compensation is applied to the power supply-distribution system of three-phrase burden balance.But, when uncertain in three-phrase burden balance situation in power supply-distribution system, single phase splitting compensation or three-phase compensation all cannot meet the requirement of reactive power compensation, cannot provide one to stablize lasting compensation to electric power system, cause circuit control inconvenience, failure rate is high and power supplying efficiency is lower.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of low-pressure reactive compensation control system, this system control convenience, stable performance, is difficult for breaking down, having improved power supplying efficiency.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of low-pressure reactive compensation control system, comprise line bank, multiple control switch, current transformer, also comprise compensation branch road and measure monitoring device, described compensation branch road is connected with line bank by current transformer, the first control switch successively, and measuring instrument is connected with current transformer by wire; Described compensation branch road comprises the fixed compensation branch road connected by compensation branch road main line, phase splitting compensation branch road, three compensation branch roads and lightning arrester branch road; Described fixed compensation branch road comprises the second control switch and first three-phase compensation capacitor of series connection successively, described phase splitting compensation branch road comprises the 3rd control switch, the first contactor and the individual event compensation condenser of series connection successively, and described three-phase compensation branch road comprises the 4th control switch, the second contactor and second three-phase compensation capacitor of series connection successively; After described the first three-phase compensation capacitor, individual event compensation condenser and the second three-phase compensation capacitor, be all connected with fault detector.
Further, described control switch is circuit breaker.
The beneficial effects of the utility model are: 1, low-pressure reactive compensation control system described in the utility model, improve the power factor of electrical network, and reduce the loss of supply transformer and conveying circuit, improve power supplying efficiency, improve power supply environment; In the road of compensation, increase the road of fixed compensation, the first three-phase compensation capacitor in Gai Zhi road is directly connected with the main line on the road of compensation by control switch and without contactor, the continual reactive power compensation demand of the system that ensured, has further improved power supplying efficiency.2, after three-phase compensation capacitor and individual event compensation condenser, increased respectively fault detector, in distribution system, particularly in the system of a large amount of applied load switches, if there is short trouble or earth fault in next stage distribution system, the electric power system of upper level must be carried out disjunction in official hour, to prevent major accident; By operational failure indicating device, can show the part breaking down, maintenance personal can find rapidly the section breaking down according to the alarm signal of this indicating device, break fault section, thereby recover in time the power supply of fault-free section, a large amount of operating times be can save, interruption duration and power failure range reduced.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
A kind of low-pressure reactive compensation control system, as shown in Figure 1, comprise line bank 1, multiple control switch, current transformer 3, this system also comprises road and the measurement monitoring device 2 of compensation, and the road of this compensation is connected with line bank 1 by current transformer 3, the first circuit breaker 4 successively; Measuring monitoring device 2 is connected with current transformer 3 by wire.In order to improve power supply quality, described compensation branch road comprises the fixed compensation branch road 51 connected by compensation branch road main line, phase splitting compensation branch road 52, three compensation branch roads 53 and lightning arrester branch roads 54.The road 51 of fixed compensation comprises the second circuit breaker 511 and first three-phase compensation capacitor 512 of series connection successively, phase splitting compensation branch road 52 comprises the 3rd circuit breaker 521, the first contactor 522 and the individual event compensation condenser 523 of series connection successively, and three-phase compensation branch road 53 comprises the 4th circuit breaker 531, the second contactor 532 and second three-phase compensation capacitor 533 of series connection successively.At the rear fault detector that is all connected with of the first three-phase compensation capacitor 512, individual event compensation condenser 523 and the second three-phase compensation capacitor 533.In distribution system, particularly, in the system of a large amount of applied load switches, if there is short trouble or earth fault in next stage distribution system, the electric power system of upper level must be carried out disjunction in official hour, to prevent major accident; By operational failure indicating device, can show the part breaking down, maintenance personal can find rapidly the section breaking down according to the alarm signal of this indicating device, break fault section, thereby recover in time the power supply of fault-free section, a large amount of operating times be can save, interruption duration and power failure range reduced.
Low-pressure reactive compensation control system described in the utility model, has improved the power factor of electrical network, has reduced the loss of supply transformer and conveying circuit, has improved power supplying efficiency, has improved power supply environment.In the road of compensation, increase the road 51 of fixed compensation, the first three-phase compensation capacitor 512 in Gai Zhi road is directly connected with the main line of compensation branch road by the second circuit breaker 511 and without contactor, the continual reactive power compensation demand of the system that ensured, has further improved power supplying efficiency.

Claims (2)

1. a low-pressure reactive compensation control system, comprise line bank, multiple control switch, current transformer, it is characterized in that: also comprise compensation branch road and measure monitoring device, described compensation branch road is connected with line bank by current transformer, the first control switch successively, and measuring instrument is connected with current transformer by wire; Described compensation branch road comprises the fixed compensation branch road connected by compensation branch road main line, phase splitting compensation branch road, three compensation branch roads and lightning arrester branch road; Described fixed compensation branch road comprises the second control switch and first three-phase compensation capacitor of series connection successively, described phase splitting compensation branch road comprises the 3rd control switch, the first contactor and the individual event compensation condenser of series connection successively, and described three-phase compensation branch road comprises the 4th control switch, the second contactor and second three-phase compensation capacitor of series connection successively; After described the first three-phase compensation capacitor, individual event compensation condenser and the second three-phase compensation capacitor, be all connected with fault detector.
2. a kind of low-pressure reactive compensation control system according to claim 1, is characterized in that: described control switch is circuit breaker.
CN201420274288.7U 2014-05-27 2014-05-27 Low-voltage reactive compensation control system Expired - Fee Related CN203871866U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420274288.7U CN203871866U (en) 2014-05-27 2014-05-27 Low-voltage reactive compensation control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420274288.7U CN203871866U (en) 2014-05-27 2014-05-27 Low-voltage reactive compensation control system

Publications (1)

Publication Number Publication Date
CN203871866U true CN203871866U (en) 2014-10-08

Family

ID=51652788

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420274288.7U Expired - Fee Related CN203871866U (en) 2014-05-27 2014-05-27 Low-voltage reactive compensation control system

Country Status (1)

Country Link
CN (1) CN203871866U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109494758A (en) * 2018-12-29 2019-03-19 北京山工智能科技有限公司 A kind of fine reactive compensation control system and its method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109494758A (en) * 2018-12-29 2019-03-19 北京山工智能科技有限公司 A kind of fine reactive compensation control system and its method

Similar Documents

Publication Publication Date Title
CN203690938U (en) Low-voltage reactive-power automatic compensation device
CN103364692B (en) A kind of power distribution network single-phase grounded malfunction in grounded system selection method
CN202362416U (en) Detection system of one-phase ground fault line selection in small current neutral grounding system
CN203811739U (en) Phase-to-ground fault detection apparatus
CN203014389U (en) High-voltage reactive power automatic compensation device
CN103151830B (en) Substation with internal bridge automatic throw-in equipment of emergency power supply
CN201541131U (en) Intelligent powerless compensation device of high-voltage line
CN203069726U (en) Rural power grid power distribution line fault location and isolation system
CN203871866U (en) Low-voltage reactive compensation control system
CN103326373B (en) Dynamic reactive power compensation device suitable for multiple-direct-current feed-in grid and control method of dynamic reactive power compensation device
CN102288859A (en) 10-kilovolt feed line short circuit test method
CN204481464U (en) Capacitor faults on-line measuring device
CN203813519U (en) Centralized-control intelligent power distribution cabinet
CN202798121U (en) Intelligent substation domain backup automatic switch system based on station level microsoft media server protocol (MMS)
CN204030286U (en) Outdoor reactive power compensation comprehensive distribution box
CN204408004U (en) Double loop power supply inlet wire switching device shifter
CN204905877U (en) Mountain area low voltage distribution system with reactive compensation function
CN204290066U (en) Low-voltage comprehensive distribution box wiring system
CN207459723U (en) Spare phase transformer quickly puts into arrangement
CN203707761U (en) 10kV distribution transformer neutral line breaking trip device
CN202856370U (en) Three-unit cylinder type intelligent capacitor
CN204156531U (en) High-voltage generator system power factor compensation arrangement
CN202333471U (en) Circuit for low-voltage complete switch equipment
CN201584672U (en) Novel power distribution and transformation device
CN203445624U (en) Reactive power compensation system for low-voltage network

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: 20141008

Termination date: 20210527