CN202231318U - Multifunctional low voltage distribution box - Google Patents

Multifunctional low voltage distribution box Download PDF

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Publication number
CN202231318U
CN202231318U CN2011203440306U CN201120344030U CN202231318U CN 202231318 U CN202231318 U CN 202231318U CN 2011203440306 U CN2011203440306 U CN 2011203440306U CN 201120344030 U CN201120344030 U CN 201120344030U CN 202231318 U CN202231318 U CN 202231318U
Authority
CN
China
Prior art keywords
interval
distribution box
detection module
processing unit
central processing
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 - Lifetime
Application number
CN2011203440306U
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Chinese (zh)
Inventor
王斌
田肖野
安万龙
孙军平
孙智涛
于晓牧
郭大皿
徐斌
吴仰宇
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
Original Assignee
WEINAN POWER SUPPLY BUREAU
China Electric Power Research Institute Co Ltd CEPRI
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 WEINAN POWER SUPPLY BUREAU, China Electric Power Research Institute Co Ltd CEPRI filed Critical WEINAN POWER SUPPLY BUREAU
Priority to CN2011203440306U priority Critical patent/CN202231318U/en
Application granted granted Critical
Publication of CN202231318U publication Critical patent/CN202231318U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a multifunctional low voltage distribution box which comprises a metering and measuring interval, a wire inlet and outlet interval, an intelligent distribution transform terminal interval, and a compensation device interval. The metering and measuring interval is provided with an intelligent electric energy meter, a temperature sensor and a humidity sensor. The wire inlet and outlet interval is provided with a high-low voltage switch and a residual current motion protector. The intelligent distribution transform terminal interval is provided with a central processing unit (CPU) and communication module, a voltage detection module, a current detection module and a transformer oil temperature detection module. The compensation device interval is provided with a reactive power compensation device. An infrared sensor is disposed outside the distribution box. The multifunctional low voltage distribution box is a low voltage integrated distribution box which is of a compact structure, exhibits integrated functions, enables the environment status of the distribution box to be effectively monitored, is high in safety, high in automation, and convenient in mounting, maintenance and repairing.

Description

A kind of multifunctional low-voltage distribution box
Technical field
The utility model relates to a kind of controller switching equipment of electric power system, more particularly relates to a kind of multifunctional low-voltage distribution box.
Background technology
At present; The distribution box of widespread usage has only single power distribution protection function in rural power grids; Some economic flourishing area; For avoiding power loss, accurately metering, reducing line loss, overwork various servicing unit casees on the distribution transformer side, like batch meter, earth leakage protective, reactive power compensation case or the like.The structural design of this distribution box is reasonable inadequately, and each casing only possesses simple function, and occupies a position separately, layout unification not attractive in appearance; Independently the line between the servicing unit case (like batch meter, distribution box and reactive power compensation case) is exposed outside separately in a plurality of mutual series connection, provides convenience to stealing, brings a lot of inconvenience also for simultaneously installation, maintenance and maintenance, has potential safety hazard; All need dispose control appliance in each independent servicing unit case, be used to realize functions such as metering, distribution, control, protection; Each independent servicing unit casing is installed complicated, and cost is high, the maintenance trouble.
Summary of the invention
In order to solve the problems referred to above that exist in the prior art, the utility model provides a kind of reasonable in design, install maintenance convenient, safe, can monitor transformer, measure, the integrated multifunctional low-voltage distribution boxs of multiple function such as compensation and distribution.
The utility model is realized through following technical scheme: a kind of multifunctional low-voltage distribution box; Comprise and measure and measure at interval, pass in and out line interval, intelligent distribution transformer terminals interval, compensation equipment at interval; Be provided with intelligent electric energy meter and the temperature sensor that temperature, humidity in the casing are measured, humidity sensor in said metering and the measurement at interval, temperature sensor is connected with central processing unit CPU with the output of humidity sensor; Be provided with high-low pressure in the turnover line interval and go out wiretap, RCD; In intelligent distribution transformer terminals interval, be provided with central processing unit CPU and communication module, voltage detection module, current detection module, temperature of oil in transformer detection mould; Communication module is connected with central processing unit CPU through data wire, and voltage detection module, current detection module, temperature of oil in transformer detection module are connected with central processing unit CPU respectively; In the compensation equipment interval, be provided with reactive power compensation device, the control loop of reactive power compensation device is connected with the central processing unit CPU of intelligent distribution transformer terminals; The casing outside has disposed infrared sensor.
The beneficial effect of the utility model multifunctional low-voltage distribution box is:
The multifunctional low-voltage distribution box is integrated in measuring equipment of the prior art, compensation equipment, control appliance, controller switching equipment etc. in the casing; By unified intelligent distribution transformer terminals control appliance at interval in the casing equipment at other several intervals is carried out master control, be that a kind of compact conformation, function are integrated, environmental aspect that can the effective monitoring distribution box, safe, automaticity is high, install, safeguard, overhaul low-voltage comprehensive distribution box easily.
Description of drawings
Accompanying drawing is the circuit theory sketch map of the utility model multifunctional low-voltage distribution box.
Among the figure: 1. low-voltage comprehensive distribution box, 2. intelligent distribution transformer terminals at interval, 3. metering with measure at interval, 4. the turnover line at interval, 5. compensation equipment at interval, 6. temperature sensor and humidity sensor.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model multifunctional low-voltage distribution box is done further to describe:
Accompanying drawing is the circuit theory sketch map of the utility model multifunctional low-voltage distribution box; Among the figure; Low-voltage comprehensive distribution box 1 by metering with measure at interval 3, the turnover line at interval 4, intelligent distribution transformer terminals at interval 2, compensation equipment 5 etc. forms at interval; In the intelligence distribution transformer terminals interval 2 central processing unit CPU and communication module are set; Voltage detection module, current detection module, temperature of oil in transformer detect mould, and communication module is connected with central processing unit CPU through data wire, and voltage detection module, current detection module, temperature of oil in transformer detection module are connected with central processing unit CPU respectively; Central processing unit CPU is gathered the data-signal and the operating state signal of distribution transformer and low voltage switchgear; And be connected with communication module; Realization is to each collection, the storage of Comprehensive Control, data and state at interval in the casing; Through communication module data message is uploaded to main station system, the while main station system will be dispatched, Long-distance Control information etc. is issued to each equipment, realizes two-way communication between each equipment and control terminal, control terminal and main station system.The intelligent distribution transformer terminals of the utility model can also be realized the detection of low voltage switchgear, compensation equipment operating state signal is uploaded to main station system through communication module with the switching value signal, makes things convenient for administrative department to check each equipment running intuitively.In intelligent distribution transformer terminals interval 2, also be provided with step down side voltage detection module, current detection module, temperature of oil in transformer detection module etc.; Voltage detection module, current detection module, temperature of oil in transformer detection module are connected with the central processing unit CPU of intelligent distribution transformer terminals respectively; Be used for detection to signals such as step down side voltage, electric current, temperature of oil in transformer, and calculating of related electrical parameters, electrical parameter, demonstration etc.; And data message is uploaded to main station system through communication module, and sending the control corresponding instruction based on measurement data and calculated data simultaneously, control low voltage switch equipment and protective device are made corresponding action.
In compensation equipment interval 5, be provided with reactive power compensation device; The control loop of reactive power compensation device is connected with the central processing unit CPU of intelligent distribution transformer terminals; Be used to control turning on and off of reactive power compensator fling-cut switch; Promptly promptly can realize switching control, thereby replace traditional idle compensating control reactive power compensator by intelligent distribution transformer terminals.
The temperature sensor and the humidity sensor 6 that are provided with intelligent electric energy meter and temperature, humidity in the casing are measured in metering and the measurement at interval; The output of temperature sensor and humidity sensor 6 is connected with central processing unit CPU, is used to measure the temperature and humidity signal in the distribution box.The higher limit of ambient temperature should be above 40 ℃ when pressing the electric equipment operation of GB design and manufacturing; And be exposed to the operation distribution box in the burning sun midsummer; Because the heat that the direct projection of sunlight, the emission of cement flooring heat and box equipment self produce, the temperature in the case is unexpectedly above 60 ℃ sometimes.So high temperature very easily causes the ageing of insulation of electric apparatus coil, lead-in wire and punctures and burn out; The too high stability of electric prospection performance, the reliability of action, the accuracy of metering of also can influencing of simultaneous temperature; This shows; Monitoring to distribution the temperature inside the box is very important, can reduce the potential safety hazard of distribution box greatly, improves the security reliability of distribution box work.
Service entrance switch in the turnover line interval 4 adopts the breaker of plastic casing that is complementary with transformer capacity, and this breaker inlet wire side is connected with metering units, and the outlet side group is connected with feeding switch through bus rod or cable in capacity.Go out wiretap and adopt multichannel high breaking automatic reclosing RCD (full-automatic comprehensive power distribution protective device).Circuit breaker integrates protection and automatic reclosings such as overload, short circuit, phase shortage, under-voltage, overvoltage, gradual electric leakage, sudden change electric leakage, and has 485 and 232 communication interfaces, and the operational factor that can transmit residual current operated protective device arrives control unit.
The intelligence distribution transformer terminals adopts compensation equipment and distribution monitoring integral type CPU at interval, exchanges and takes a sample, and it is multi-functional to integrate data acquisition, communication, power quality controlling, control, protection, electrical network parameter analysis etc.The control unit collection is also handled the communication data of other three unit, through the telecommunication mode with transfer of data to main website, in uniform data collection and centralized monitor platform, show, functions such as calculating, inquiry, statistical analysis.
Compensation equipment mainly comprises the integrated interval to all or part of equipments such as reactive-load compensation equipment, three-phase imbalance abatement equipment, harmonic suppression apparatus at interval; Be respectively applied for the harmonic wave of the reactive power of compensation network, the three-phase imbalance of administering load, inhibition electrical network; Improve the quality of power supply of power distribution network; Reduce line loss, burning voltage.
Casing outside at low-voltage comprehensive distribution box 1 has disposed infrared sensor, is used to realize the safety monitoring to transformer and distribution box; Owing to the stolen phenomenons of electric power facility such as transformer occur in some areas; Therefore this utility model has disposed the existence that infrared sensor is used to keep watch on the human factor that distribution box and transformer periphery electric power facility are damaged; In time note abnormalities and abnormality and the scene that captures are uploaded to main station system, be used for investigation and find the offender.
The utility model multifunctional low-voltage distribution box is integrated in measuring equipment of the prior art, compensation equipment, control appliance, controller switching equipment etc. in the casing; By unified intelligent distribution transformer terminals control appliance at interval in the casing equipment at other several intervals is carried out master control; Be a kind of compact conformation, function integrated, can effective monitoring distribution box environmental aspect, safe, automaticity is high, install, safeguard, overhaul low-voltage comprehensive distribution box easily; Simultaneously, also reduced the overall cost of distribution box.

Claims (1)

1. multifunctional low-voltage distribution box; It is characterized in that: comprise and measure and measure at interval, pass in and out line interval, intelligent distribution transformer terminals interval, compensation equipment at interval; Be provided with intelligent electric energy meter and the temperature sensor that temperature, humidity in the casing are measured, humidity sensor in said metering and the measurement at interval, temperature sensor is connected with central processing unit CPU with the output of humidity sensor; Be provided with high-low pressure in the turnover line interval and go out wiretap, RCD; In intelligent distribution transformer terminals interval, be provided with central processing unit CPU and communication module, voltage detection module, current detection module, temperature of oil in transformer detection mould; Communication module is connected with central processing unit CPU through data wire, and voltage detection module, current detection module, temperature of oil in transformer detection module are connected with central processing unit CPU respectively; In the compensation equipment interval, be provided with reactive power compensation device, the control loop of reactive power compensation device is connected with the central processing unit CPU of intelligent distribution transformer terminals; The casing outside has disposed infrared sensor.
CN2011203440306U 2011-09-14 2011-09-14 Multifunctional low voltage distribution box Expired - Lifetime CN202231318U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203440306U CN202231318U (en) 2011-09-14 2011-09-14 Multifunctional low voltage distribution box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203440306U CN202231318U (en) 2011-09-14 2011-09-14 Multifunctional low voltage distribution box

Publications (1)

Publication Number Publication Date
CN202231318U true CN202231318U (en) 2012-05-23

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CN2011203440306U Expired - Lifetime CN202231318U (en) 2011-09-14 2011-09-14 Multifunctional low voltage distribution box

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102790360A (en) * 2012-07-13 2012-11-21 杭州钱江电气集团股份有限公司 Low-voltage complete switch equipment and control method thereof
CN102904178A (en) * 2012-09-24 2013-01-30 长兴县供电局 Smart suspension distribution box
CN103457236A (en) * 2013-07-04 2013-12-18 万能亿自动化科技(苏州)有限公司 Distribution box protection module
CN111722041A (en) * 2020-06-24 2020-09-29 无锡中科电气设备有限公司 Intelligent detection method and system for low-voltage distribution board
CN111917188A (en) * 2020-08-11 2020-11-10 南方电网数字电网研究院有限公司 Power distribution station monitoring device, power distribution station topology identification system and method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102790360A (en) * 2012-07-13 2012-11-21 杭州钱江电气集团股份有限公司 Low-voltage complete switch equipment and control method thereof
CN102790360B (en) * 2012-07-13 2014-12-24 杭州钱江电气集团股份有限公司 Low-voltage complete switch equipment and control method thereof
CN102904178A (en) * 2012-09-24 2013-01-30 长兴县供电局 Smart suspension distribution box
CN102904178B (en) * 2012-09-24 2015-01-21 长兴县供电局 Smart suspension distribution box
CN103457236A (en) * 2013-07-04 2013-12-18 万能亿自动化科技(苏州)有限公司 Distribution box protection module
CN103457236B (en) * 2013-07-04 2016-03-23 基元电气有限公司 A kind of distribution box protection module
CN111722041A (en) * 2020-06-24 2020-09-29 无锡中科电气设备有限公司 Intelligent detection method and system for low-voltage distribution board
CN111917188A (en) * 2020-08-11 2020-11-10 南方电网数字电网研究院有限公司 Power distribution station monitoring device, power distribution station topology identification system and method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: STATE GRID CORPORATION OF CHINA

Free format text: FORMER OWNER: WEINAN ADMINISTRATION OF POWER SUPPLY

Effective date: 20140326

Owner name: WEINAN ADMINISTRATION OF POWER SUPPLY CHINA ELECTR

Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE

Effective date: 20140326

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 714000 WEINAN, SHAANXI PROVINCE TO: 100761 XICHENG, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20140326

Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No.

Patentee after: State Grid Corporation of China

Patentee after: Weinan Power Supply Bureau

Patentee after: China Electric Power Research Institute

Address before: 714000 No. 110 Qianjin Road, Shaanxi, Weinan

Patentee before: Weinan Power Supply Bureau

Patentee before: China Electric Power Research Institute

CX01 Expiry of patent term

Granted publication date: 20120523

CX01 Expiry of patent term