CN103414244A - Ring main unit self-powered system - Google Patents

Ring main unit self-powered system Download PDF

Info

Publication number
CN103414244A
CN103414244A CN2013103789217A CN201310378921A CN103414244A CN 103414244 A CN103414244 A CN 103414244A CN 2013103789217 A CN2013103789217 A CN 2013103789217A CN 201310378921 A CN201310378921 A CN 201310378921A CN 103414244 A CN103414244 A CN 103414244A
Authority
CN
China
Prior art keywords
transformer
main unit
ring main
sensor
relay
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.)
Pending
Application number
CN2013103789217A
Other languages
Chinese (zh)
Inventor
李烽
王剑
黄安林
姚建歆
许楫
史华康
金琪
解蕾
刘晨怡
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.)
SHANGHAI HUANRONG ELECTRIC POWER TECHNOLOGY EQUIPMENT Co Ltd
State Grid Corp of China SGCC
State Grid Shanghai Electric Power Co Ltd
Original Assignee
SHANGHAI HUANRONG ELECTRIC POWER TECHNOLOGY EQUIPMENT Co Ltd
State Grid Corp of China SGCC
State Grid Shanghai 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 SHANGHAI HUANRONG ELECTRIC POWER TECHNOLOGY EQUIPMENT Co Ltd, State Grid Corp of China SGCC, State Grid Shanghai Electric Power Co Ltd filed Critical SHANGHAI HUANRONG ELECTRIC POWER TECHNOLOGY EQUIPMENT Co Ltd
Priority to CN2013103789217A priority Critical patent/CN103414244A/en
Publication of CN103414244A publication Critical patent/CN103414244A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses a ring main unit self-powered system which comprises a first transformer, a second transformer, a current sensor and a third transformer, wherein the first transformer, the second transformer, the current sensor and the third transformer are sequentially connected. The ring main unit self-powered system further comprises a rectifier, a super capacitor, a relay, an inverter, a digital signal processor, a temperature sensor and a humidity sensor, wherein the rectifier, the super capacitor, the relay and the inverter are sequentially connected. An input end of the first transformer is connected with the alternating current; an input end of the rectifier is connected with an output end of the first transformer; an output end of the inverter is connected with an input end of the third transformer; the digital signal processor is respectively connected with the current sensor, the relay, the temperature sensor and the humidity sensor. The ring main unit self-powered system is low in cost and capable of guaranteeing continuous electricity supply to a ring main unit under various conditions, especially in the high-temperature environment and in the low-temperature environment.

Description

A kind of ring main unit self-contained electric system
Technical field
The present invention relates to a kind of ring main unit self-contained electric system.
Background technology
Ring main unit is as a ring very important in electric match system, and its safe and reliable operation is very important.Therefore, guarantee its uninterrupted power supply in various severe operational environments, be even more important.Can obtain power supply by arranging the dc-battery group, and at the ring main unit scene, be subjected to the impact of ambient temperature very large, particularly when high low temperature the discharge capability of battery and do not carry out for a long time deep discharge after performance all can be a greater impact, storage battery can not normal power supply, in case and at the scene line outage just will lose the main source of power supply.Therefore, design realizes rationally, the ring main unit self-contained electric system is the problem that the applicant is devoted to solve cheaply.
Summary of the invention
The object of the present invention is to provide a kind of ring main unit self-contained electric system, by utilizing super capacitor to replace traditional storage battery, and temperature, humidity sensor are to the mode of the monitoring of environment, with lower cost, guaranteed in various situations, especially under high and low temperature environment to the uninterrupted power supply of ring main unit.
The technical scheme that realizes above-mentioned purpose is:
A kind of ring main unit self-contained electric system, the access civil power, it is characterized in that, comprise the first transformer, the second transformer, current sensor, the 3rd transformer, rectifier, super capacitor, relay, inverter, digital signal processor, temperature sensor and humidity sensor, wherein:
The input access civil power of described the first transformer;
Described the first transformer, the second transformer, current sensor and the 3rd transformer are connected successively;
Described rectifier, super capacitor, relay and inverter are connected successively;
The input of described rectifier connects the output of described the first transformer;
The output of described inverter connects the input of described the 3rd transformer;
Described digital signal processor connects respectively described current sensor, relay, temperature sensor and humidity sensor.
The invention has the beneficial effects as follows: the present invention, by utilizing super capacitor to replace traditional storage battery, utilizes temperature, humidity sensor to environmental monitoring, has guaranteed when high low temperature the uninterrupted power supply to ring main unit.Simultaneously, the signal that utilizes current sensor to gather, guarantee when ring main unit loses main power supply, connects in time super capacitor and realize power supply.Simultaneously, the present invention is simple in structure, with low cost, is easy to realize.
The accompanying drawing explanation
Fig. 1 is the structural representation of ring main unit self-contained electric system of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Refer to Fig. 1, ring main unit self-contained electric system of the present invention, comprise the first transformer 1, the second transformer 2, current sensor 3, the 3rd transformer 4, rectifier 5, super capacitor 6, relay 7, inverter 8, digital signal processor 9, temperature sensor 10 and humidity sensor 11, wherein:
The first transformer 1, the second transformer 2, current sensor 3 are connected successively with the 3rd transformer 4; The input access civil power of the first transformer 1, output connects the input of the second transformer 2;
Rectifier 5, super capacitor 6, relay 7 and inverter 8 are connected successively; The input of rectifier 5 connects 1 output of the first transformer; The output of inverter 8 connects the input of the 3rd transformer 4;
Digital signal processor 9 does not connect current sensor 3, relay 7, temperature sensor 10 and humidity sensor 11.
In the present invention, civil power is supplied with ring main unit through the first transformer 1, the second transformer 2, current sensor 3 and the 3rd transformer 4 on the one hand, and the opposing party gives super capacitor 6 chargings after rectifier 5 rectifications; Current sensor 3 gathers current signal, temperature sensor 10 collecting temperature signals, and humidity sensor 11 gathers moisture signal, all passes to digital signal processor 9; Digital signal processor 9 converts the various types of signal of reception to digital signal, and digital signal is analyzed; According to the analysis result of current signal, after confirming to lose mains supply or being about to lose mains supply, control relay 7 is connected, and makes super capacitor 6 power supplies.Simultaneously, digital signal processor 9 is according to the analysis result to temperature, moisture signal, the break-make of control relay 7.To sum up, realize the uninterrupted power supply to ring main unit.In the present embodiment, the model TMS320F2812 that digital signal processor 9 is selected.

Claims (1)

1. ring main unit self-contained electric system, the access civil power, it is characterized in that, comprise the first transformer, the second transformer, current sensor, the 3rd transformer, rectifier, super capacitor, relay, inverter, digital signal processor, temperature sensor and humidity sensor, wherein:
The input access civil power of described the first transformer;
Described the first transformer, the second transformer, current sensor and the 3rd transformer are connected successively;
Described rectifier, super capacitor, relay and inverter are connected successively;
The input of described rectifier connects the output of described the first transformer;
The output of described inverter connects the input of described the 3rd transformer;
Described digital signal processor connects respectively described current sensor, relay, temperature sensor and humidity sensor.
CN2013103789217A 2013-08-27 2013-08-27 Ring main unit self-powered system Pending CN103414244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013103789217A CN103414244A (en) 2013-08-27 2013-08-27 Ring main unit self-powered system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013103789217A CN103414244A (en) 2013-08-27 2013-08-27 Ring main unit self-powered system

Publications (1)

Publication Number Publication Date
CN103414244A true CN103414244A (en) 2013-11-27

Family

ID=49607236

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013103789217A Pending CN103414244A (en) 2013-08-27 2013-08-27 Ring main unit self-powered system

Country Status (1)

Country Link
CN (1) CN103414244A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105223463A (en) * 2015-10-08 2016-01-06 国网北京市电力公司 The monitoring system of ring main unit and method
CN105471090A (en) * 2016-01-12 2016-04-06 深圳市天毅科技有限公司 Power supply automatic switching circuit used in intelligent card device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202276284U (en) * 2011-11-04 2012-06-13 四川阿海珐电气有限公司 Electric power-used AC/DC integrated power supply device
CN202915509U (en) * 2012-10-09 2013-05-01 四川澄观节能环保科技有限公司 Solar-energy-based energy-saving system for communication base station
CN103236727A (en) * 2013-04-27 2013-08-07 国家电网公司 Intelligent equipment for controlling sequential charging and discharging of storage battery according to power generation capacity of new energy sources
CN203132593U (en) * 2013-03-30 2013-08-14 国家电网公司 Internal environment online monitoring device for screen cabinet box body of transformer substation
CN203151215U (en) * 2013-02-19 2013-08-21 辽宁凯信新能源技术有限公司 Lithium battery energy storage type DC source control system in electric power system
CN203491783U (en) * 2013-08-27 2014-03-19 国家电网公司 Self-powered system of ring main unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202276284U (en) * 2011-11-04 2012-06-13 四川阿海珐电气有限公司 Electric power-used AC/DC integrated power supply device
CN202915509U (en) * 2012-10-09 2013-05-01 四川澄观节能环保科技有限公司 Solar-energy-based energy-saving system for communication base station
CN203151215U (en) * 2013-02-19 2013-08-21 辽宁凯信新能源技术有限公司 Lithium battery energy storage type DC source control system in electric power system
CN203132593U (en) * 2013-03-30 2013-08-14 国家电网公司 Internal environment online monitoring device for screen cabinet box body of transformer substation
CN103236727A (en) * 2013-04-27 2013-08-07 国家电网公司 Intelligent equipment for controlling sequential charging and discharging of storage battery according to power generation capacity of new energy sources
CN203491783U (en) * 2013-08-27 2014-03-19 国家电网公司 Self-powered system of ring main unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105223463A (en) * 2015-10-08 2016-01-06 国网北京市电力公司 The monitoring system of ring main unit and method
CN105471090A (en) * 2016-01-12 2016-04-06 深圳市天毅科技有限公司 Power supply automatic switching circuit used in intelligent card device
CN105471090B (en) * 2016-01-12 2017-12-22 深圳市天毅科技有限公司 A kind of power supply automatic switchover circuit being used in smart card device

Similar Documents

Publication Publication Date Title
WO2013184903A3 (en) Battery charging and maintaining with defective battery monitoring
AU2010297770A8 (en) Power metering automatic product with communication function
CN204068435U (en) The direct electricity getting device of a kind of transmission line
CN103412226A (en) State monitoring system of ring main unit
CN203760850U (en) Novel outdoor switch cabinet
CN103414244A (en) Ring main unit self-powered system
CN203491783U (en) Self-powered system of ring main unit
CN203643554U (en) Intelligent circuit fault indicator
CN202562621U (en) Noise monitoring device
CN105355031A (en) Internet of Things intelligent information acquisition device
CN202975217U (en) Insulator monitoring device based on wireless transmission
CN202949283U (en) remote control power distribution cabinet for internet of things
CN202584404U (en) Wireless water meter acquisition and control device
CN203981855U (en) A kind of Intelligent battery data logging device
CN204216669U (en) A kind of interchange monitoring unit
CN203933140U (en) A kind of cable load current CT power taking intelligent electric power unit
CN203967758U (en) A kind of reactive power compensation system with temperature acquisition function
CN204258423U (en) Novel duplicate-power transducer
CN203434724U (en) Uninterrupted integrated power supply system
CN208607782U (en) A kind of solar panel automatic monitoring system
CN203084070U (en) Power detection device for indoor electric power utilization
CN202798087U (en) Zero-loss photovoltaic output device
CN207010236U (en) A kind of Intelligent household energy management system
CN206293965U (en) Uncooled IRFPAs instrument low-power consumption noisy power system based on Switching Power Supply
CN205212297U (en) Intelligence box -type substation with automatic data logging function

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20131127