CN203324364U - Leakage-current early warning system for low-voltage distribution network - Google Patents
Leakage-current early warning system for low-voltage distribution network Download PDFInfo
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- CN203324364U CN203324364U CN2013202129751U CN201320212975U CN203324364U CN 203324364 U CN203324364 U CN 203324364U CN 2013202129751 U CN2013202129751 U CN 2013202129751U CN 201320212975 U CN201320212975 U CN 201320212975U CN 203324364 U CN203324364 U CN 203324364U
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Abstract
The utility model provides a leakage-current early warning system for a rural low-voltage network, which can automatically acquire leakage current and carry out early warning. The early warning system comprises collectors, concentrators, a background front-end processor and an early-warning master station, wherein the collector is equipped with a first wireless communication module, each concentrator is equipped with a second wireless communication module, the early-warning master station comprises a host and an early warning device and sets multiple early warning thresholds, and the concentrators, the collectors, the background front-end processor and the early-warning master station are connected wirelessly. The leakage-current early warning system can automatically acquire data in each ammeter, the data is gathered into the concentrator via the wireless communication modules, data processing is carried out by the background front-end processor, and the processed data is finally sent to the early-warning master station; and large-range data gathering is realized, the data is clearly displayed on the host of the early-warning master station, and when the leakage current value exceeds the early warning threshold, data of the early-warning master station is displayed in different colors. The leakage-current early warning system requires small amount of workers, is accurate in data and high in speed, can carry out update in real time and is strongly practical.
Description
Technical field
The utility model relates to a kind of leakage current early warning system, particularly low-voltage distribution network leakage current early warning system.
Background technology
Along with the economic construction of fast development, the electrical network of thereupon building is also more and more flourishing.There is following problem in low power distribution network:
1, low pressure separated time leakage current is bigger than normal, makes the leak protection device can't bringing normally into operation.Part family is because house is old, and intrinsic leakage current is larger, and the even family had protects and all can't put into operation (being removed voluntarily by the user, out of service), and after this part leakage current is accumulated to a certain degree, causing the low-voltage platform area separated time to leak the guarantor can't bringing normally into operation.Rural comprehensive becomes subordinate's the little commercial power user of part, and the leakage current that consumer produces is larger, or has the multiple grounding phenomenon, and causing separated time to leak protection device can't normally put into operation.
2 road lamp line zero line overlap joints are lack of standardization, cause platform to distinguish line zero line serial connection or multiple grounding.A lot of villages access on the separated time of De Mou road, Yi Getai district by the road lamp line phase line, zero line is generally all used platform district low-voltage circuit zero line, and the road lamp line service area generally all exceeds the separated time scope in platform district, phase line place, the low-voltage platform area scope that even exceeds the phase line place had; And the part road lamp line zero line that goes beyond the scope is taken on the zero line that is overlapped on the spot other low pressure separated times of platform district or on the zero line of other district's low-voltage circuits, cause the zero line serial connection of the relevant low pressure separated time in Yi Getai district, even make two (or more than two) platform district zero line serial connections (causing the zero line multiple grounding), thereby the leakage protection device of low pressure separated time can't normally be put into operation.
3 ,Tai district low-pressure side ground connection copper cash are stolen serious, and mistake is connected adjacent stations district zero line leak protection device can't be put into operation.Because a lot of platforms district low-pressure side adopts copper product wire rod ground connection, De Tai district, some areas low-voltage zero line ground wire is often stolen, causes platform district low-voltage zero line to lose ground connection and cause consumer electronics equipment superpotential damage accident; Small part unit is for preventing the stolen initiation device damage of zero line accident, artificially the interval zero line of platform is communicated with, prevent the lost territory danger of the stolen zero line of place's ground wire, thereby causes the zero line multiple grounding, and leak protection device can't be put into operation.
4, lack the leakage current monitoring system, the operations staff can't control the situation that puts into operation of Lou protecting in time.And leak the management system of protecting, require total guarantor of Dui Tai Qu per month to carry out trial jump test, interval time is long, can't find in time Lou to protect the state that puts into operation.Secondly, leak guarantor's action often due to certain leakage current generating, and current operations staff can't recognize the size of leaking leakage current while protecting action, the Real-time Load situation, therefore can't fundamentally eliminate the leak current fault point.
5, the leakage protection device that part operations staff artificial origin enables to put into operation does not put into operation.Due to the part operations staff in leaking the operation process of protection device, often encountering the leakage protection device caused due to other reasons goes into operation unsuccessful (after the power failure installation of Ru Tai district, the hourglass protection device that restores electricity puts into operation successfully, when the darkness street lighting plays the used time, leak the protection device tripping operation because road lamp line zero line serial connection reason causes), thus habitual thinking caused, think that the leakage current of circuit is too large, when lacking effective leakage tests equipment and means, protection device will be leaked while going into operation through being everlasting out of service.The Deficiency of learning ability of part operations staff to new equipment, the arrange work numerous and diverse to new leakage protection device can not understand in time, fails correct definite value is set when equipment is gone into operation, thereby causes Lou guarantor to go into operation unsuccessful.
Summary of the invention
Technical problem to be solved in the utility model is to provide the rural area low-voltage distribution network leakage current early warning system of a kind of automatic collection leakage current energy early warning, for this reason, the utility model is by the following technical solutions: described early warning system comprises the collector be arranged in ammeter box, be arranged on the concentrator in low-voltage distribution cabinet, backstage front end processor and early warning main website, collector is for gathering the leakage current value in ammeter box, described collector also is equipped with the first wireless communication module, described concentrator is equipped with the second wireless communication module, described collector sends to concentrator by wireless communication module by Information Monitoring, concentrator sends to the backstage front end processor by Information Monitoring, described backstage front end processor sends to the early warning main website by the leakage current value of gained after information processing, described early warning main website comprises main frame and precaution device, described early warning main website has set some early warning threshold values, when after processing, the gained leakage current value reaches the early warning threshold values, give the alarm, described concentrator, collector, backstage front end processor and the wireless connections of early warning main website.
Further, described some early warning values are first order early warning threshold values, second level early warning threshold values, and when leakage current value is less than first order early warning threshold values, host data shows green, mean that leakage current is normal; When leakage current value is greater than first order early warning threshold values, while being less than second level early warning threshold values, host data shows orange, means that leakage current is abnormal; When leakage current value is greater than second level early warning threshold values, host data shows orange, means that leakage current exceeds standard.
Owing to having adopted the technical solution of the utility model, the utility model adopts and is arranged on the interior collector of ammeter box, is arranged on concentrator, backstage front end processor and early warning main website in low-voltage distribution cabinet, can automatically gather the data in each ammeter box, through wireless communication module, gather to concentrator, then carry out the data processing by the backstage front end processor, finally send to the early warning main website, realize that large-scale data gather, on the clear main frame that is presented at the early warning main website, when leakage current value surpasses early warning value, there will be different early warning host data colors.The required staff of the utility model is few, data are accurate, speed is fast, and can real-time update, have very strong practical application, has guaranteed security and the low-cost characteristics of actual production, management.
The accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
With reference to accompanying drawing.Early warning system described in the utility model comprises the collector 1 that is arranged in ammeter box, is arranged on concentrator 2, backstage front end processor 3 and early warning main website 4 in low-voltage distribution cabinet, comprise in ammeter box and leak guarantor 21 and electric energy meter 22, collector is for gathering the leakage current value in ammeter box, described collector is micropower wireless collection device, it also is equipped with the first wireless communication module 11, and described concentrator is equipped with the second wireless communication module 12.The characteristics such as having of collector and concentrator is easy for installation, automatic network-building, and debugging is convenient.
Described collector 1 sends to concentrator 2 by the first wireless communication module 11 by Information Monitoring, and concentrator 2 sends to backstage front end processor 3 by Information Monitoring, and described backstage front end processor 3 sends to early warning main website 4 by the leakage current value of gained after information processing.Described the first wireless communication module 11 and the second wireless communication module 12 adopt and carry out communication by private radio frequency range (470MHz～510MHz), and the information unification collected gathers to concentrator 2, by delivering to early warning main website 4 on GPRS.
Described early warning main website 4 comprises main frame and precaution device, and described early warning main website 4 has set some early warning threshold values, when after processing, the gained leakage current value reaches the early warning threshold values, give the alarm, and described concentrator, collector, backstage front end processor and the wireless connections of early warning main website.Described early warning main website adopts backstage leakage current management system by the leakage data collected, and carries out the works for the treatment of such as reception, storage, analysis, issue of data, and offers each service unit of management of power use department by WEB issue form.
Further, described some early warning values are first order early warning threshold values, second level early warning threshold values, and when leakage current value is less than first order early warning threshold values, host data shows green, mean that leakage current is normal; When leakage current value is greater than first order early warning threshold values, while being less than second level early warning threshold values, host data shows orange, means that leakage current is abnormal; When leakage current value is greater than second level early warning threshold values, host data shows orange, means that leakage current exceeds standard.
Claims (2)
1. a low-voltage distribution network leakage current early warning system, it is characterized in that described early warning system comprises the collector be arranged in ammeter box, be arranged on the concentrator in low-voltage distribution cabinet, backstage front end processor and early warning main website, collector is for gathering the leakage current value in ammeter box, described collector also is equipped with the first wireless communication module, described concentrator is equipped with the second wireless communication module, described collector sends to concentrator by wireless communication module by Information Monitoring, concentrator sends to the backstage front end processor by Information Monitoring, described backstage front end processor sends to the early warning main website by the leakage current value of gained after information processing, described early warning main website comprises main frame and precaution device, described early warning main website has set some early warning threshold values, when after processing, the gained leakage current value reaches the early warning threshold values, give the alarm, described concentrator, collector, backstage front end processor and the wireless connections of early warning main website.
2. a kind of low-voltage distribution network leakage current early warning system according to claim 1, it is characterized in that described some early warning values are first order early warning threshold values, second level early warning threshold values, when leakage current value is less than first order early warning threshold values, host data shows green, means that leakage current is normal; When leakage current value is greater than first order early warning threshold values, while being less than second level early warning threshold values, host data shows orange, means that leakage current is abnormal; When leakage current value is greater than second level early warning threshold values, host data shows orange, means that leakage current exceeds standard.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202129751U CN203324364U (en) | 2013-04-24 | 2013-04-24 | Leakage-current early warning system for low-voltage distribution network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202129751U CN203324364U (en) | 2013-04-24 | 2013-04-24 | Leakage-current early warning system for low-voltage distribution network |
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| CN203324364U true CN203324364U (en) | 2013-12-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360236A (en) * | 2014-11-20 | 2015-02-18 | 国家电网公司 | Quick detection complete device and method for electric leakage points of 0.4 kV overhead line |
| CN104698344A (en) * | 2015-03-31 | 2015-06-10 | 国家电网公司 | Automatic early warning processing method for low voltages of customer electric meters |
| CN105676064A (en) * | 2016-01-12 | 2016-06-15 | 国网浙江省电力公司嘉兴供电公司 | User-side leakage current monitoring method and system |
| CN109541375A (en) * | 2018-12-20 | 2019-03-29 | 杭州华春科技有限公司 | A kind of earth detector for concentrated gas meter box |
| CN114019407A (en) * | 2021-09-27 | 2022-02-08 | 国网江苏省电力有限公司连云港市赣榆区供电分公司 | Rural power distribution network low-voltage transformer area electric leakage early warning system and method |
-
2013
- 2013-04-24 CN CN2013202129751U patent/CN203324364U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360236A (en) * | 2014-11-20 | 2015-02-18 | 国家电网公司 | Quick detection complete device and method for electric leakage points of 0.4 kV overhead line |
| CN104698344A (en) * | 2015-03-31 | 2015-06-10 | 国家电网公司 | Automatic early warning processing method for low voltages of customer electric meters |
| CN105676064A (en) * | 2016-01-12 | 2016-06-15 | 国网浙江省电力公司嘉兴供电公司 | User-side leakage current monitoring method and system |
| CN109541375A (en) * | 2018-12-20 | 2019-03-29 | 杭州华春科技有限公司 | A kind of earth detector for concentrated gas meter box |
| CN114019407A (en) * | 2021-09-27 | 2022-02-08 | 国网江苏省电力有限公司连云港市赣榆区供电分公司 | Rural power distribution network low-voltage transformer area electric leakage early warning system and method |
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Legal Events
| 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 HANGZHOU POWER SUP Effective date: 20140825 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: STATE GRID ZHEJIANG HANGZHOU XIAOSHAN POWER SUPPLY Free format text: FORMER NAME: XIAOSHAN ELECTRIC POWER SUPPLY BUREAU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang Province, 311203 Xiaoshan street Chengxiang District Xiaoshao Road, No. 1308 Patentee after: STATE GRID ZHEJIANG HANGZHOU CITY XIAOSHAN DISTRICT POWER SUPPLY Co. Address before: Hangzhou City, Zhejiang Province, 311203 Xiaoshan street Chengxiang District Xiaoshao Road, No. 1308 Patentee before: Xiaoshan Power Supply Bureau |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140825 Address after: Hangzhou City, Zhejiang Province, 311203 Xiaoshan street Chengxiang District Xiaoshao Road, No. 1308 Patentee after: STATE GRID ZHEJIANG HANGZHOU CITY XIAOSHAN DISTRICT POWER SUPPLY Co. Patentee after: State Grid Corporation of China Patentee after: HANGZHOU POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER Co. Address before: Hangzhou City, Zhejiang Province, 311203 Xiaoshan street Chengxiang District Xiaoshao Road, No. 1308 Patentee before: STATE GRID ZHEJIANG HANGZHOU CITY XIAOSHAN DISTRICT POWER SUPPLY Co. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |