CN103715616B - A kind of ring main unit - Google Patents

A kind of ring main unit Download PDF

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Publication number
CN103715616B
CN103715616B CN201410002189.8A CN201410002189A CN103715616B CN 103715616 B CN103715616 B CN 103715616B CN 201410002189 A CN201410002189 A CN 201410002189A CN 103715616 B CN103715616 B CN 103715616B
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China
Prior art keywords
power
switch main
cabinets
main unit
ring main
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CN201410002189.8A
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Chinese (zh)
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CN103715616A (en
Inventor
魏永乐
吕海琼
杨敦高
李振林
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BEIJING HEROSAIL POWER SCI & TECH Co Ltd
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BEIJING HEROSAIL POWER SCI & TECH Co Ltd
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Abstract

The invention belongs to electrical equipment technical field, a kind of ring main unit, including PT power cabinets, distribution automation cabinet and some Switch main bodies are particularly disclosed;PT power cabinets, are connected with distribution automation cabinet and some Switch main bodies, are powered for it provides power supply;Wherein, also including battery module, in the case where PT power cabinets externally fed is interrupted, for each loop provides emergency service;Distribution automation cabinet, is connected with some Switch main bodies, and data acquisition and monitoring are carried out to each Switch main body, and gathered data is communicated with outside;Switch main body, is connected with PT power cabinets and distribution automation cabinet respectively, completes ring main unit point, closing operation.Take ring main unit of the invention, by the global design for optimizing ring main unit can simplify ring main unit back panel wiring, reduce on-site installation work amount, realize it is non-maintaining, and also can reduces cost, improve power supply reliability.

Description

A kind of ring main unit
Technical field
The application belongs to electrical equipment technical field, more particularly to a kind of ring main unit.
Background technology
With the economic sustained and rapid development of Chinese society and the continuous improvement of living standards of the people, power consumer can to power supply Security by property, the quality of power supply and power supply proposes requirement higher.The intelligent distribution network that nowadays country widelys popularize is Rapidly development, ring main unit can be greatly improved as the main electric power equipment of intelligent distribution network power distribution network power supply reliability, Economy, and labour intensity is reduced, raise the management level and service quality, promote the development of intelligent distribution network.
How more preferably power distribution network and power equipment to be monitored on-line, data processing, communication and a distant place control and carry The security that equipment high is used, as the problem that everybody competitively studies.It is distribution network automated in order to realize, meet to power distribution network reality Existing on-line monitoring and control, it is necessary to which the power equipment to power distribution network is transformed.The way of domestic nowadays most of producers is It is DTU to increase a distribution terminal unit to ring main unit(Distribution Terminal Unit).Reference picture 1, is existing The connection diagram of DTU and ring main unit in technology, the framework of traditional DTU is core cell, terminal block, further provided with electric power storage Pond and communication module.The problem so brought has the functional part inside 1. DTU too many, causes DTU volume ratios in itself larger, It is very inconvenient in installation and the maintenance in future.2. causing ring main unit strengthens the dependence of DTU, present many ring main units The battery that DTU is carried is used, if DTU breaks down needed repairing, it is easy to cause the whole linear quadratic control of ring main unit The power down in loop, generates very big harm for the safe operation of ring main unit, is unfavorable for improving the reliability of power supply.③ Some functions of module are repeated with the function in ring main unit other modules in DTU, are unfavorable for the excellent of equipment allomeric function and performance Change;4. the cost of this DTU is higher, so as to the manufacturing cost for causing whole cupboard increases, be unfavorable for ring main unit popularization and Using.The overall structure of ring main unit is also far from reaching preferable framework, and the cooperation between each functional module is also not carried out excellent Change combination, these are also ring main unit problem demanding prompt solution.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of ring main unit, to realize that reducing overall looped network cabinet accumulates, optimization The configuration of each module, has reached reduces cost, it is easy to the purpose of maintenance.
The invention provides a kind of ring main unit, it includes, PT power cabinets, distribution automation cabinet and some Switch main bodies;
PT power cabinets, are connected with distribution automation cabinet and some Switch main bodies, are powered for it provides power supply;Wherein, also wrap Battery module is included, in the case where PT power cabinets externally fed is interrupted, for each loop provides emergency service;
Distribution automation cabinet, is connected with some Switch main bodies, and data acquisition and monitoring are carried out to each Switch main body, will gather Data are communicated with outside;
Switch main body, is connected with PT power cabinets and distribution automation cabinet respectively, completes ring main unit point, closing operation.
It is preferred that the distribution automation cabinet includes the automation cabinet terminal block, DTU and the communication terminal that are linked in sequence;
Wherein, cabinet terminal block is automated, is electrically connected with some Switch main bodies respectively, to obtain the number of Switch main body According to;
DTU, is connected with automation cabinet terminal block, and feeder automation and relay protection are carried out to Switch main body;
Communication terminal, is connected with DTU, and gathered data is communicated with outside.
Wherein, PT power cabinets include, voltage transformer, relay, power management module, PT cabinets terminal block and battery;
Wherein, voltage transformer, the first alternating voltage and the second alternating voltage are converted to by external high pressure;First alternating current Pressure is directly connected through PT cabinets terminal block with some Switch main bodies, and the second alternating voltage is connected through relay with power management module;
Power management module, by the second ac voltage rectifier be direct current after, respectively with PT cabinets terminal block and battery phase Even;
Battery, in external power source power failure, through power management module for ring main unit provides Emergency Power;
PT cabinet terminal blocks, are connected with some Switch main bodies respectively, there is provided required power supply.
It is preferred that the PT power cabinets include 2 road externally feds, respectively through first voltage transformer and second voltage mutual inductance Device, by same relay for power management module is powered.
It is preferred that the first alternating voltage is 110V, the second alternating voltage is 220V.
Ring main unit of the invention is taken, ring main unit back panel wiring can be simplified by the global design for optimizing ring main unit, subtracted Few on-site installation work amount, realize it is non-maintaining, and also can reduces cost, improve power supply reliability.
Brief description of the drawings
Fig. 1 is the structural representation of ring main unit and DTU in the prior art;
Fig. 2 is the ring main unit structural representation of the embodiment of the present invention;
Fig. 3 is the PT power cabinet structural representations of the embodiment of the present invention;
Fig. 4 is the PT power cabinet structural representations of another embodiment of the present invention.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real to enable above-mentioned purpose, the feature and advantage of the application more obvious understandable Mode is applied to be described in further detail the application.
Reference picture 2, is the ring main unit structural representation of the embodiment of the present invention, a kind of ring main unit, and it includes PT power cabinets, matches somebody with somebody Automation cabinet and some Switch main bodies;
PT power cabinets, are connected with distribution automation cabinet and some Switch main bodies, are powered for it provides power supply;Wherein, also wrap Battery module is included, in the case where PT power cabinets externally fed is interrupted, for each loop provides emergency service;Need explanation It is that the battery module in PT power cabinets is battery module in the prior art in DTU, is to reduce DTU sheets in the present invention The volume of body, only remains the core cell in traditional DTU, and the battery in traditional DTU has been arranged in PT power cabinets, makes The wiring for obtaining battery and PT power cabinets is simple, and more facilitates for the maintenance of battery.
Distribution automation cabinet, is connected with some Switch main bodies, and data acquisition and monitoring are carried out to each Switch main body, will gather Data are communicated with outside;DTU module after wherein being simplified in this implementation is arranged in distribution automation cabinet, and each is opened Closing body carries out data acquisition and monitoring.The DTU module for making script volume larger, only remains feeder automation and relay protection Function, realizes the miniaturization of DTU, easy for installation.It is preferred that the distribution automation cabinet includes the automation cabinet being linked in sequence Terminal block, DTU and communication terminal;Wherein, cabinet terminal block is automated, is electrically connected with some Switch main bodies respectively, to obtain Take the data of Switch main body;Automation cabinet terminal block in the present invention is arranged in distribution automation cabinet, can directly with DTU phases Even, the complexity of wiring is reduced.
DTU, is connected with automation cabinet terminal block, and feeder automation and relay protection are carried out to Switch main body;This implementation DTU in example only includes the corn module in tradition DTU, realizes the miniaturization of DTU, maintains easily.
Communication terminal, is connected with DTU, and gathered data is communicated with outside.Communication terminal in this implementation is mounted directly In distribution automation cabinet, data acquisition is carried out with DTU, improve the reliability of communication.Being different from the prior art will communication The way that terminal and DTU are combined, realizes the convenience safeguarded.
Switch main body, is connected with PT power cabinets and distribution automation cabinet respectively, completes ring main unit point, closing operation.According to It is actually needed, Switch main body can include several, be connected with PT power cabinets and distribution automation cabinet respectively.
Using the ring main unit of the present embodiment, by the global design for optimizing ring main unit can simplify ring main unit back panel wiring, Reduce on-site installation work amount, realize it is non-maintaining, and also can reduces cost, improve power supply reliability.
Reference picture 3, is the PT power cabinets in the embodiment of the present invention, and the PT power cabinets include, voltage transformer, relay, Power management module, PT cabinets terminal block and battery;Wherein, voltage transformer, the first alternating voltage is converted to by external high pressure With the second alternating voltage;First alternating voltage is directly connected through PT cabinets terminal block with some Switch main bodies, the second alternating voltage warp Relay is connected with power management module;Power management module, by the second ac voltage rectifier be direct current after, respectively with PT cabinets Terminal block is connected with battery;Battery, in external power source power failure, through power management module for ring main unit is provided promptly Power supply;PT cabinet terminal blocks, are connected with some Switch main bodies respectively, there is provided required power supply.Wherein, the first alternating voltage is 110V, Second alternating voltage is 220V.
Using the plan of establishment of this PT power cabinets, can facilitate and battery is charged, and reduce and battery wiring Complexity, it is easy to safeguarded to battery.
Reference picture 4, is the PT power cabinets in another embodiment of the present invention, and the difference with above-mentioned PT power cabinets is, this reality The PT power cabinets for applying example include 2 road externally feds, respectively through first voltage transformer and second voltage transformer, by same One relay is powered for power management module.Remaining is identical with the principle of above-mentioned PT power cabinets, repeats no more again.Using this The PT power cabinet schemes of embodiment, it is ensured that two-way external power source is powered to ring main unit, increased the power supply reliability of ring main unit Property.
The above embodiments merely illustrate the technical concept and features of the present invention, its object is to allow person skilled in the art Scholar will appreciate that present disclosure and implement according to this that it is not intended to limit the scope of the present invention, according to essence of the invention The equivalent change or modification that refreshing essence is made, should all be included within the scope of the present invention.

Claims (3)

1. a kind of ring main unit, it is characterised in that including PT power cabinets, distribution automation cabinet and some Switch main bodies;
PT power cabinets, are connected with distribution automation cabinet and some Switch main bodies, are powered for it provides power supply;
Distribution automation cabinet, is connected with some Switch main bodies, and data acquisition and monitoring are carried out to each Switch main body, by gathered data Communicated with outside;
Switch main body, is connected with PT power cabinets and distribution automation cabinet respectively, completes ring main unit point, closing operation;
The distribution automation cabinet includes the automation cabinet terminal block, DTU and the communication terminal that are linked in sequence;
Cabinet terminal block is wherein automated, is electrically connected with some Switch main bodies respectively, to obtain the data of Switch main body;
DTU, is connected with automation cabinet terminal block, and feeder automation and relay protection are carried out to Switch main body;
Communication terminal, is connected with DTU, and gathered data is communicated with outside;
The PT power cabinets, including voltage transformer, relay, power management module, PT cabinets terminal block and battery module;
Wherein, voltage transformer, the first alternating voltage and the second alternating voltage are converted to by external high pressure;First alternating voltage is passed through PT cabinets terminal block is directly connected with some Switch main bodies, and the second alternating voltage is connected through relay with power management module;
Power management module, by the second ac voltage rectifier be direct current after, respectively with PT cabinets terminal block and battery module phase Even;
PT cabinet terminal blocks, are connected with some Switch main bodies respectively, there is provided required power supply;
The battery module, in external power source power failure, through power management module for ring main unit provides Emergency Power.
2. ring main unit according to claim 1, it is characterised in that the PT power cabinets include 2 road externally feds, pass through respectively First voltage transformer and second voltage transformer, by same relay for power management module is powered.
3. ring main unit according to claim 2, it is characterised in that the first alternating voltage is 110V, the second alternating voltage is 220V。
CN201410002189.8A 2014-01-03 2014-01-03 A kind of ring main unit Active CN103715616B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN103715616B true CN103715616B (en) 2017-06-20

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105098645B (en) * 2014-05-25 2020-09-29 袁茂银 Distribution automation cabinet and application thereof
CN107959237A (en) * 2014-05-25 2018-04-24 湖南国奥电力设备有限公司 Outdoor switching station
CN107769055A (en) * 2014-05-25 2018-03-06 湖南国奥电力设备有限公司 Power distribution automation cabinet and its application
CN109193936B (en) * 2018-09-20 2021-11-23 西安市远征科技有限公司 Ring main unit high-protection system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201699325U (en) * 2010-06-13 2011-01-05 浙江中控研究院有限公司 Intelligent low pressure distribution cabinet system
CN103078255A (en) * 2012-12-31 2013-05-01 王金刚 Power supply system and integrated type power supply cabinet system of intelligent building
CN203312920U (en) * 2013-07-04 2013-11-27 北京华电嘉实电力设备有限公司 Intelligent integrated system of PT cabinet
CN203747246U (en) * 2014-01-03 2014-07-30 北京合锐赛尔电力科技有限公司 Ring main unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130098079A (en) * 2012-02-27 2013-09-04 한국전력공사 Apparatus and method for controlling power supply at substation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201699325U (en) * 2010-06-13 2011-01-05 浙江中控研究院有限公司 Intelligent low pressure distribution cabinet system
CN103078255A (en) * 2012-12-31 2013-05-01 王金刚 Power supply system and integrated type power supply cabinet system of intelligent building
CN203312920U (en) * 2013-07-04 2013-11-27 北京华电嘉实电力设备有限公司 Intelligent integrated system of PT cabinet
CN203747246U (en) * 2014-01-03 2014-07-30 北京合锐赛尔电力科技有限公司 Ring main unit

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Address after: 100085 Beijing city Haidian District on the 7 Street No. 1 Building 5 layer

Applicant after: BEIJING HEROSAIL POWER SCI & TECH CO., LTD.

Address before: 100085 Beijing city Haidian District on the 7 Street No. 1 Building 5 layer

Applicant before: Beijing Herui SEL Power Science & Technology Co., Ltd.

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Free format text: CORRECT: APPLICANT; FROM: BEIJING HERUI SEL POWER SCIENCE + TECHNOLOGY CO., LTD. TO: BEIJING HERUI SEL POWER TECHNOLOGY CO., LTD.

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