CN103414244A - Ring main unit self-powered system - Google Patents
Ring main unit self-powered system Download PDFInfo
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- 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
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- transformer
- main unit
- ring main
- relay
- sensor
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
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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
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;
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.
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 |
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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 |
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| CN (1) | CN103414244A (en) |
Cited By (3)
| 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 |
| CN111987790A (en) * | 2020-08-11 | 2020-11-24 | 云南电网有限责任公司丽江供电局 | Power taking device in ring main unit |
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| 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 |
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2013
- 2013-08-27 CN CN2013103789217A patent/CN103414244A/en active Pending
Patent Citations (6)
| 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 (5)
| 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 |
| CN111987790A (en) * | 2020-08-11 | 2020-11-24 | 云南电网有限责任公司丽江供电局 | Power taking device in ring main unit |
| CN111987790B (en) * | 2020-08-11 | 2024-02-20 | 云南电网有限责任公司丽江供电局 | Get electric installation in looped netowrk cabinet |
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Application publication date: 20131127 |