CN201909817U - Open-type line loss detector - Google Patents
Open-type line loss detector Download PDFInfo
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- CN201909817U CN201909817U CN2010201589576U CN201020158957U CN201909817U CN 201909817 U CN201909817 U CN 201909817U CN 2010201589576 U CN2010201589576 U CN 2010201589576U CN 201020158957 U CN201020158957 U CN 201020158957U CN 201909817 U CN201909817 U CN 201909817U
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Abstract
The utility model provides an open-type line loss detector, belonging to the technical field of power management. An electric energy meter is an open-type sensing watt-hour meter and comprises a watt-hour meter main body (4), an open-type current sensor (2) and an open-type voltage sampler (5), wherein the open-type current sensor (2) and the open-type voltage sampler (5) are assembled by two semi-circle rings, each semi-circle ring is provided with a screw thread which plays a part in fixing and sampling connection, the open-type current sensor (2) and the open-type voltage sampler (5) are respectively connected with the watt-hour meter main body (4) by flexible connection (1), a line to be detected is arranged in two semi-circle ring pressing and installing holes (3) of the open-type current sensor (2) and the open-type voltage sampler (5), the two semi-circle rings are fixed together, and two screw nails on the semi-circle rings can puncture an insulating layer to be contacted with and electrically connected with the line to be detected. The open-type line loss detector can be disassembled and assembled without powering off, the loss caused by the power-off disassembly and assembly can be avoided, a suspectable power transmission line can be timely installed and examined, the open-type line loss detector can be conveniently implemented on a large scale, the accumulated error caused by the convention of a multi-level mutual inductor can be reduced after the open-type sensing watt-hour meter is used, the real-time and concentrated meter reading can be realized, the line loss and a damage source of the line loss can be examined, the electricity steal can be effectively avoided, and the running reliability of a power grid can be guaranteed.
Description
Technical field
Open-type line loss pick-up unit, the utility model belongs to the electrical management technical field.
Background technology
Along with expanding economy, every field improves constantly the dependence of electric power energy, transmission line of electricity line loss problem also is on the rise, stealing is the main cause that causes line loss, the 10KV power distribution network is the link of sale of electricity proportion maximum in China's electric system at present, the solution of line loss problem helps to improve the economic benefit and the safe operation of electric network of electric power system, at present stealing is caused that the technological means that the problem of line loss is taked mainly contains three kinds: first kind is that ammeter is increased new molding box cover, lock and the method for lead sealing, this method has only increased preventive means, can not realize the monitoring to electricity filching behavior; Second kind is to adopt anti-electricity-theft electric energy meter and electricity-stealing prevention metering tank, by the function in the electric energy meter is expanded, can take precautions against under-voltage method, undercurrent method, phase-shifting method stealing, at present anti-electricity-theft ammeter of fault judgement function such as integrated under-voltage, undercurrent, the phase failure, phase shift and electricity-stealing prevention metering tank itself can be taken precautions against electricity filching behavior in the ammeter, but can't stop that the user gets around anti-electricity-theft ammeter and batch meter and from the front end of distribution line even the behavior of high-pressure side stealing; The third is that to adopt the method for system monitoring to carry out anti-electricity-theft, obtains the electricity consumption data in real time by power load terminal electric quality collector, and adopts a radio communication mode teletransmission control center.But the terminal device of this type systematic employing is conventional high-tension batch meter and low pressure monitoring device at present, still possesses the leak that allows bad user carry out ground low-voltage circuit transformation cheating.
Summary of the invention
The technical problems to be solved in the utility model is: overcome prior art deficiency in actual applications, provide a kind of safe in utilization and be easy to install, can make things convenient on a large scale and implement the open-type line loss pick-up unit that need not cut off the power supply during installation.
The technical scheme that its technical matters that solves the utility model adopts is: this open-type line loss pick-up unit comprises: electric energy meter, collector and information process unit, it is characterized in that: described electric energy meter is an open-type sensing watt-hour meter, comprise the watt-hour meter body, open-type current sensor and open-type voltage sampling device, open-type current sensor and open-type voltage sampling device are combined by two semicircular ring, the fixing screw that is connected effect with sampling has been housed on semicircular ring, the open-type current sensor is connected with the ammeter body by being flexible coupling respectively with open-type voltage sampling device, employing is flexible coupling and is connected with the electric wire that adapts to different length and specification, test line is put into the semicircular ring press mounting hole of open-type current sensor and open-type voltage sampling device, two semicircular ring are fixed together, and the screw on the semicircular ring punctures insulation course and contacts electrical connection with test line.Realize the sampling of electric current, voltage and fixing of test line.
In single-phase table, be provided with an open-type current sensor and an open-type voltage sampling device.
Be provided with three open-type current sensors and an open-type voltage sampling device in the three-phase table.
Described collector adopts the multi pass acquisition device, the electric energy meter of quantity such as fuel tank below each collector, and collector is regularly concentrated the electric weight of each partial node and is copied, and can be real-time transmitted to information processing centre.
Described information process unit is the computer terminal, handle the information about power that receives by computer software, can calculate the line loss of each branch by the information about power that receives and judge the electricity filching behaviors that whether have at different levels, the computer terminal can adopt netting twine also can adopt wireless transmission with being connected of collector.
The topological structure of electric of described open-type line loss pick-up unit is divided into multistage, from one-level to the N level, according to the detection of actual transmission line of electricity the progression of electrical network is set, on three phase line, adopts three-phase open-type sensing watt-hour meter, in single-phase user, adopt single-phase open-type sensing watt-hour meter; The first order adopts open-type sensing watt-hour meter A, a plurality of secondary open-type sensing watt-hour meter are set after the first order, and between a secondary, collector is set, a plurality of three grades of open-type sensing watt-hour meter are set under each secondary open-type sensing watt-hour meter, a plurality of level Four open-type sensing watt-hour meter are set under each three grades of open-type sensing watt-hour meter, and between each higher level's open-type sensing watt-hour meter and its branch's open-type sensing watt-hour meter, a collector is set, an information process unit is set connects all collectors.
The information about power by reading first order summary table and the electric weight of all secondary ammeters and make comparisons, remove the consideration of normal line loss, if the electric weight of secondary ammeter and the electric weight reading that equals the one-level ammeter, then proof does not have stealing, if the electric weight of secondary ammeter and little more a lot of than one-level electric weight reading, proof has stealing, and then check the information about power of three grades of ammeters under each secondary ammeter, if three grades of ammeter electric weight under this secondary ammeter are with identical with the reading of secondary ammeter, then prove under this secondary ammeter and do not have stealing, check the information about power of other secondary ammeter and three grades of ammeters under it then, the electric weight relation of analysis higher level ammeter step by step and branch's ammeter of this ammeter, if data differ greatly, will find which bifurcation of this electrical network has a large amount of line loss behaviors, can the user of follow-up supply line correspondence be sounded a warning.
Compared with prior art, the beneficial effect that the utility model adopts open-type sensing watt-hour meter to be had is: need not cut off the power supply during installation, avoided the loss that brings because of the power failure dismounting, can install and check suspectable transmission line of electricity at any time, can make things convenient on a large scale and implement, reduced the cumulative errors that multistage mutual inductor conversion brings, safe in utilization and be easy to install, can check line loss and damage source thereof, not only realize real-time centralized automatic meter-reading, can check line loss and damage source thereof again, effectively prevent stealing, guarantee the reliability of operation of power networks.
Description of drawings
Fig. 1 is the single-phase open-type sensing of a utility model watt-hour meter structural representation;
Fig. 2 is the utility model three-phase open-type sensing watt-hour meter structural representation;
Fig. 3 is the topological structure of electric front view synoptic diagram of the utility model electric energy meter.
Fig. 1-the 3rd, the most preferred embodiment of the utility model open-type line loss pick-up unit.
Wherein 1, be flexible coupling 2, open-type current sensor 3, press mounting hole 4, watt-hour meter body 5, open-type voltage sampling device.
Embodiment
Below in conjunction with accompanying drawing 1-3 the utility model open-type line loss pick-up unit is described further:
This utility model mainly comprises: electric energy meter, collector and information process unit.
With reference to Fig. 1-2:
Open-type line loss pick-up unit is mainly by electric energy meter, collector and information process unit, electric energy meter is an open-type sensing watt-hour meter, comprise watt-hour meter body 4, open-type current sensor 2 and open-type voltage sampling device 5, open-type current sensor 2 and open-type voltage sampling device 5 are combined by two semicircular ring, the fixing screw that is connected effect with sampling has been housed on semicircular ring, open-type current sensor 2 and open-type voltage sampling device 51 are connected with ammeter body 4 by being flexible coupling respectively, be flexible coupling for the snake line connects, be connected with the electric wire that adapts to different length and specification.Test line is put into the semicircular ring press mounting hole 3 of open-type current sensor 2 and open-type voltage sampling device 5, and two semicircular ring are fixed together, and the screw on the semicircular ring punctures insulation course and contacts electrical connection with test line.This open-type sensing watt-hour meter structure brings very big facility for construction and installation.
In single-phase table, be provided with an open-type current sensor 2 and an open-type voltage sampling device 5.
Be provided with three open-type current sensors 2 and an open-type voltage sampling device 5 in the three-phase table.
With reference to accompanying drawing 3:
A plurality of open-type sensing watt-hour meter and collector according to the topological structure of electrical network, are arranged at the relevant load point place on all branch feeding circuits of each load point of transmission line of electricity and described load point respectively;
Wherein said power distribution network topology is divided into multistage, to the N level, according to the detection of actual transmission line of electricity the progression of electrical network is set from one-level, adopts three-phase open-type sensing watt-hour meter on three phase line, adopts single-phase open-type sensing watt-hour meter in single-phase user; The first order adopts open-type sensing watt-hour meter A, a plurality of secondary open-type sensing watt-hour meter B1-Bn are set after the first order, and between a secondary, collector is set, gather the information about power of each secondary open-type sensing watt-hour meter, a plurality of three grades of open-type sensing watt-hour meter are set under each secondary open-type sensing watt-hour meter, electric energy meter B1C1-B1Cn is set under B1, electric energy meter B2C1-B2Cn is set under B2, by that analogy, electric energy meter BnC1-BnCn is set under Bn.Level Four open-type sensing watt-hour meter is set under three grades of open-type sensing watt-hour meter, by that analogy, divide at each higher level's open-type sensing watt-hour meter and to deposit a grade open-type sensing watt-hour meter, and under each higher level's open-type sensing watt-hour meter and subordinate's open-type sensing watt-hour meter, a collector is set.
Each collector is by wired or be wirelessly transmitted to information process unit, it is the computer terminal, the computer expert crosses the software processes information about power, and the line loss per unit that can calculate each branch according to information about power judges whether have stealing to produce the line loss behavior, remove the consideration of normal line loss, if the electric weight of A equals the electric weight sum of secondary open-type sensing watt-hour meter B1-Bn, then proof does not have stealing, if it is unequal, then proof has electricity filching behavior, and then the electric weight reading of checking open-type sensing watt-hour meter B1 whether with its under open-type sensing watt-hour meter B1C1-B1Cn electric weight and equate, if equate, prove that then this branch does not have electricity filching behavior, judge the at different levels and secondary electric weight situation of open-type sensing watt-hour meter B2-Bn successively, until finding electric weight and be not equal to higher level's ammeter location of reading to find which branch line stealing, in anti-electricity-theft process, can calculate the actual line loss of each branch road respectively according to the reading of each table.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (6)
1. open-type line loss pick-up unit comprises electric energy meter, collector and information process unit, it is characterized in that: described electric energy meter is an open-type sensing watt-hour meter, comprise watt-hour meter body (4), open-type current sensor (2) and open-type voltage sampling device (5), open-type current sensor (2) and open-type voltage sampling device (5) are combined by two semicircular ring, the fixing screw that is connected effect with sampling has been housed on semicircular ring, open-type current sensor (2) is connected with ammeter body (4) by be flexible coupling (1) respectively with open-type voltage sampling device (5), test line is put into the semicircular ring press mounting hole (3) of open-type current sensor (2) and open-type voltage sampling device (5), two semicircular ring are fixed together, and the screw on the semicircular ring punctures insulation course and contacts electrical connection with test line.
2. open-type line loss pick-up unit according to claim 1 is characterized in that: described open-type sensing watt-hour meter is single-phase table, is provided with an open-type current sensor (2) and an open-type voltage sampling device (5) in single-phase table.
3. open-type line loss pick-up unit according to claim 1 is characterized in that: described open-type sensing watt-hour meter is the three-phase table, is provided with three open-type current sensors (2) and an open-type voltage sampling device (5) in the three-phase table.
4. open-type line loss pick-up unit according to claim 1, it is characterized in that: the topological structure of electric of described open-type line loss pick-up unit is multistage, from one-level to the N level, the progression of electrical network is set according to the detection of actual transmission line of electricity, the first order adopts the electric energy metrical Table A, a plurality of secondary electric energy meter B1-Bn are set after the first order, and between a secondary, collector is set, a plurality of three grades of electric energy meters are set under each secondary electric energy meter, electric energy meter B1C1-B1Cn is set under B1, electric energy meter B2C1-B2Cn is set under B2, electric energy meter BnC1-BnCn is set under Bn, between electric energy metrical Table A and the submeter B1-Bn under it, collector is set, at electric energy meter B1 and B1C1-B1Cn a collector is set, between each higher level's electric energy meter and its branch's electric energy meter a collector is set, wherein n is a natural number, an information process unit is set connects all collectors.
5. open-type line loss pick-up unit according to claim 4 is characterized in that: the electric energy meter that equal amount is arranged below the described collector employing multi pass acquisition device, each collector.
6. open-type line loss pick-up unit according to claim 4 is characterized in that: described information process unit is the computer terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201589576U CN201909817U (en) | 2010-04-15 | 2010-04-15 | Open-type line loss detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201589576U CN201909817U (en) | 2010-04-15 | 2010-04-15 | Open-type line loss detector |
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| Publication Number | Publication Date |
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| CN201909817U true CN201909817U (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201589576U Expired - Lifetime CN201909817U (en) | 2010-04-15 | 2010-04-15 | Open-type line loss detector |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495315A (en) * | 2011-12-08 | 2012-06-13 | 重庆市电力公司电力科学研究院 | Method and system for split-phase line loss measurement |
| CN103658056A (en) * | 2013-12-25 | 2014-03-26 | 青岛乾程电子科技有限公司 | Automatic miss detection method for an electric meter screw |
| CN103954817A (en) * | 2014-05-21 | 2014-07-30 | 国家电网公司 | Sampler capable of preventing electric larceny |
| CN104360225A (en) * | 2014-10-17 | 2015-02-18 | 国家电网公司 | Line loss positioning device and line loss positioning method for low-voltage overhead line |
| CN104749469A (en) * | 2015-04-08 | 2015-07-01 | 国家电网公司 | Circuit line loss comprehensive monitoring device |
| CN109406919A (en) * | 2018-12-29 | 2019-03-01 | 国网山东省电力公司泰安供电公司 | Line loss detection device and line loss detection system |
| CN110531129A (en) * | 2019-09-27 | 2019-12-03 | 广东电网有限责任公司 | A kind of electric energy meter |
| CN115436698A (en) * | 2022-09-21 | 2022-12-06 | 浙江云通智能物联技术有限公司 | Platform area electricity stealing prevention system and method |
-
2010
- 2010-04-15 CN CN2010201589576U patent/CN201909817U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495315A (en) * | 2011-12-08 | 2012-06-13 | 重庆市电力公司电力科学研究院 | Method and system for split-phase line loss measurement |
| CN103658056A (en) * | 2013-12-25 | 2014-03-26 | 青岛乾程电子科技有限公司 | Automatic miss detection method for an electric meter screw |
| CN103658056B (en) * | 2013-12-25 | 2015-05-13 | 青岛乾程电子科技有限公司 | Automatic miss detection method for an electric meter screw |
| CN103954817A (en) * | 2014-05-21 | 2014-07-30 | 国家电网公司 | Sampler capable of preventing electric larceny |
| CN103954817B (en) * | 2014-05-21 | 2016-05-04 | 国家电网公司 | The one sampler of opposing electricity-stealing |
| CN104360225A (en) * | 2014-10-17 | 2015-02-18 | 国家电网公司 | Line loss positioning device and line loss positioning method for low-voltage overhead line |
| CN104360225B (en) * | 2014-10-17 | 2017-02-15 | 国家电网公司 | Line loss positioning device and line loss positioning method for low-voltage overhead line |
| CN104749469A (en) * | 2015-04-08 | 2015-07-01 | 国家电网公司 | Circuit line loss comprehensive monitoring device |
| CN109406919A (en) * | 2018-12-29 | 2019-03-01 | 国网山东省电力公司泰安供电公司 | Line loss detection device and line loss detection system |
| CN110531129A (en) * | 2019-09-27 | 2019-12-03 | 广东电网有限责任公司 | A kind of electric energy meter |
| CN115436698A (en) * | 2022-09-21 | 2022-12-06 | 浙江云通智能物联技术有限公司 | Platform area electricity stealing prevention system and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |