CN102445577A - Electricity stealing prevention system - Google Patents
Electricity stealing prevention system Download PDFInfo
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- CN102445577A CN102445577A CN2011103141205A CN201110314120A CN102445577A CN 102445577 A CN102445577 A CN 102445577A CN 2011103141205 A CN2011103141205 A CN 2011103141205A CN 201110314120 A CN201110314120 A CN 201110314120A CN 102445577 A CN102445577 A CN 102445577A
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Abstract
The invention provides an electricity stealing prevention system. The electricity stealing prevention system comprises a data acquisition device and an electricity stealing prevention device, wherein the data acquisition device comprises a first acquisition unit for acquiring power supply data of a first side circuit of a transformer, a transmitting unit for transmitting the power supply data acquired by the first acquisition unit, and a power supply unit for supplying electrical energy; and the electricity stealing prevention device comprises a receiving unit for receiving the power supply data transmitted by at least one transmitting unit, a second acquisition unit for acquiring the power supply data of a second side circuit of the transformer, and a processing unit for determining whether the electricity stealing event happens, based on the received first side power supply data of the transformer, the power supply data acquired by the second acquisition unit and a preset conversion relation for converting the power supply data of one side of the transformer to the other side. The electricity stealing prevention system can detect the act of electricity stealing of a single-phase or three-phase transformer in time, thereby reducing the loss caused by the act of electricity stealing.
Description
Technical field
The invention belongs to the electrical network field, particularly a kind of electricity anti-theft system of transformer.
Background technology
At present, substation transformer commonly used prevents that the method for stealing from being between the secondary outlet of transformer and watt-hour meter, to adopt the physical isolation technology, for example; In the patent No. is in the Chinese patent document of CN90217886; Disclose a kind of substation transformer anti-electricity-theft device, wherein, this scheme adopts the current transformer with low-pressure side to be loaded in the transformation body; The tie lines that draws of current transformer is connected to ammeter box through seal box and metal tube, prevents electricity filching behavior thus.Again for example, be in the Chinese patent document of CN97204577 in the patent No., a kind of substation transformer low-temperature measurement anti-electricity-theft device is disclosed, its essence also is the generation that prevents stealing through the physical isolation mode.
Although the physical isolation mode can increase the difficulty of user's stealing; Yet; Those anti-electricity-theft modes still are difficult to stop certain user's electricity filching behavior, and the certain user often is employed in connection that isolating points place change draws tie lines and carries out stealing with the mode of the monitoring of skipping watt-hour meter and monitoring equipment; And the tie lines that draws that before the work about electric power personnel come site inspection, will change restores to the original state, and avoids electricity filching behavior to come to light thus.Therefore, press for a kind of novel electricity anti-theft method.
Summary of the invention
The object of the present invention is to provide a kind of data collector, so that can effectively gather the power supply data on transformer one side line road.
Another object of the present invention is to provide a kind of anti-electricity-theft device.
Another purpose of the present invention is to provide a kind of electricity anti-theft system, so that can detect the generation of electricity filching behavior based on the power supply data of transformer both sides.
Based on above-mentioned purpose, the present invention provides a kind of data collector, and it comprises: connect first collecting unit on the transformer first side line road, be used to gather the power supply data on the said transformer first side line road; Transmitting element is used to send the power supply data that said first collecting unit is gathered; Power supply unit is used to provide electric energy.
Preferably, said first collecting unit is arranged on transformer high-voltage side line road.
Preferably, said power supply unit comprises at least: the electric energy inductor and the reserve battery that form induction electric energy based on the electric current of said transformer high-voltage side.
Based on above-mentioned purpose, the present invention also provides a kind of anti-electricity-theft device, comprising: receiving element is used to receive the power supply data that transmitting element sent of above-mentioned data collector; Second collecting unit that at least one is arranged on the transformer second side line road is used to gather the power supply data on the said transformer second side line road; Processing unit, power supply data that are used for gathering and the conversion of power supply data-switching to the opposite side of said transformer one side concerned determine whether to take place stealing based on the power supply data that received, said second collecting unit.
Preferably, when said transformer is single transformer, in the circuit of first side of said single transformer, be provided with a said data collector; When said transformer is three-phase transformer, in the circuit of each phase of said three-phase transformer first side, be provided with a said data collector.。
Preferably, said second collecting unit is arranged on the step down side circuit.
Preferably, said second collecting unit is connected with the metering ammeter or the distribution monitoring device that are arranged on the transformer second side line road, to gather the power supply data on the said transformer second side line road.
Preferably, said second collecting unit is connected through the RS485 bus with the metering ammeter or the distribution monitoring device that are arranged on the transformer second side line road, to gather the power supply data on the said transformer second side line road.
Beneficial effect of the present invention is; The present invention provides a kind of electricity anti-theft system of electronic type to replace the physics formula measures of anti-stealing electricity of current substation transformer; Said electricity anti-theft system is based on the transformational relation of the electric current of transformer first side and second side, voltage etc.; The electric current of one side, voltage, power etc. are changed,, can be confirmed in the supply line of said transformer whether stealing to take place thus so that compare with the opposite side corresponding data; So that can in time take measures on customs clearance, the various losses that effectively reduce electricity filching behavior and brought.
Description of drawings
Fig. 1 is the structural representation of electricity anti-theft system of the present invention.
Embodiment
Fig. 1 shows the structural representation of electricity anti-theft system of the present invention, and wherein, said electricity anti-theft system 1 comprises data collector 11, and anti-electricity-theft device 12; Said data collector 11 comprises: at least one first collecting unit 111, at least one transmitting element 112 and power supply unit 113.Said anti-electricity-theft device 12 comprises: at least one second collecting unit 121, receiving element 122 and processing unit 123.
Said first collecting unit 111 connects in the transformer first side line road, is used to gather the power supply data on the transformer first side line road.Said transformer includes but not limited to: single-phase step-up or step-down transformer; Triphase step-down transformer etc.; Preferably, when said transformer was step-down transformer, said first collecting unit 111 was connected transformer high-voltage side line road; More preferably; When said transformer is a triphase step-down transformer; For example; When 10Kv converts the transformer of line voltage into, said triphase step-down transformer on high-tension side each mutually all connect first collecting unit that a data harvester is comprised so that gather the power supply data of a phase respectively.
Wherein, said power supply data include but not limited to alternating current, alternating voltage, current effective value, power etc.Preferably, said first collecting unit 111 comprises: sampling sensor, analog to digital converter etc.
Said transmitting element 112 is connected in said first collecting unit 111, is used to send the power supply data that said first collecting unit 111 is gathered.
Particularly, said transmitting element 112 is sent to said anti-electricity-theft device 12 after encapsulating based on the power supply data of said first collecting unit 111 being gathered with the communication protocol of said anti-electricity-theft device 12.
For example, said transmitting element 112 encapsulates the power supply data that said first collecting unit 111 is gathered based on the bus protocol with said anti-electricity-theft device 12, and the power supply data after will encapsulating are sent.
Again for example, said transmitting element 112 based on said anti-electricity-theft device 12 encapsulate the power supply data that said first collecting unit 111 is gathered such as home control network communication protocols such as Zigbee, bluetooths, and the power supply data after will encapsulating are sent.
Said power supply unit 113 is used for to the said transmitting element 112 and/or first collecting unit 111 electric energy being provided.Said power supply unit 113 includes but not limited to: rechargeable battery, disposable heavy-duty battery, solar cell, induction type power supplying circuit etc.Preferably, said power supply unit 113 comprises that the electric current based on said transformer high-voltage side forms the electric energy inductor and the heavy-duty battery of induction electric energy.For example, said power supply unit 113 adopts based on the mode of the current transformer of induction power taking and stack backup type long-life batteries and supplies power, and reaches said transmitting element 112 and/or first collecting unit, 111 needed stable, lasting electric energy.
Said second collecting unit 121 is connected in the second side line road of said transformer, is used to gather the power supply data on the said transformer second side line road.
Preferably, when said transformer was step-down transformer, said second collecting unit 121 was connected the step down side circuit; More preferably; When said transformer is a triphase step-down transformer; For example; When 10Kv converts the transformer of line voltage into, connect second collecting unit 121, so that adopt the three-phase alternating current collection to obtain the power supply data of each phase and the mutual relationship between the data of respectively supplying power in the low-pressure side of said triphase step-down transformer.
Preferably, said second collecting unit 121 can comprise sampling sensor, Analog to Digital Converter etc., with the alternating current on the Direct Sampling transformer second side line road, alternating voltage etc.; Preferably; Said second collecting unit 121 is connected with metering ammeter that is arranged on the step down side circuit or distribution monitoring device, so that directly read voltage, current effective value, powering quantity and active power that metering ammeter or distribution monitoring device gather, reactive power etc.; In addition; Said second collecting unit 121 also can be gathered voltage, current effective value, powering quantity and active power, the reactive power on the second side line road etc. voluntarily, so that compare to confirm the accuracy etc. of metering ammeter or distribution monitoring device with corresponding power supply data that metering ammeter that is connected or distribution monitoring device are gathered.Wherein, said second collecting unit 121 can be connected through RS485 bus or other bus with metering ammeter that is arranged on the transformer second side line road and distribution monitoring device.
Said receiving element 122 is used to receive the power supply data that said transmitting element 112 is sent.
Preferably, when transformer is single transformer, the power supply data that the transmitting element 112 that data harvester 11 of said receiving element 122 receptions comprises is sent; When said transformer is three-phase transformer; Said receiving element 122 receives the power supply data that the transmitting element that each comprised 112 in three data harvesters 11 is sent; Wherein, Each data collector 11 is separately positioned on a phase circuit of three-phase transformer first side, and promptly each data collector 11 each self-contained first collecting unit 111 connects a phase circuit of three-phase transformer first side.
Power supply data that said processing unit 123 is used for being gathered based on the power supply data that received, said second the collecting unit 121 and conversion of power supply data-switching to the opposite side of said transformer one side concerned determine whether to take place stealing.
Wherein, said conversion relation comprises the transformational relation of any power supply data-switching to said transformer second side with said transformer first side or with the transformational relation of second side power supply data-switching to said transformer first side of said transformer etc.; Preferably, said conversion relation comprises: with low-pressure side current conversion to the on high-tension side current conversion relation of step-down transformer, with extremely on high-tension side power transfer relation of the low-pressure side power transfer of step-down transformer or the like.
Need to prove, it should be appreciated by those skilled in the art that the coil ratio of first side and second side of said conversion relation and transformer is relevant; In addition, when transformer is three-phase transformer, said conversion relation also with the mode of connection of three-phase transformer, for example, star-like or triangular form etc., relevant.
Particularly; Said processing unit 123 is changed the power supply data of this side based on the conversion relation of power supply data-switching to the opposite side of the power supply data of a side and this side earlier; With the power supply data after the acquisition conversion, the power supply data after will changing again and the power supply data of opposite side compare and determine whether to take place stealing.
For example; After the alternating current of the low-pressure side that said processing unit 123 is gathered said second collecting unit 121 earlier and alternating voltage carry out analog to digital conversion; Again based on calculating active power, reactive power, and the power that is calculated is changed, with the power after obtaining changing based on the preset power transformational relation such as modes such as FFT computings; And based on the on high-tension side current data that receives and voltage data calculate behind the on high-tension side power with conversion after power compare; When both difference in preset range, then confirm not have stealing to take place, otherwise confirm to exist stealing.
Again for example; The three-phase alternating current flow vector of the low-pressure side that said processing unit 123 is gathered said second collecting unit 121 based on the scheduled current transformational relation is earlier changed; With the current vector after obtaining changing; And calculate current effective value based on the current vector after the conversion so that with compare based on the current effective value that alternating current obtained from transmitting element 112, and determined whether that based on the difference of current effective value stealing takes place; The effective structure of reduced data harvester 11 reduces its complexity thus.
In sum; Beneficial effect of the present invention is, based on the transformational relation of the electric current of transformer first side and second side, voltage etc., the electric current of a side, voltage, power etc. changed; So that compare with the opposite side corresponding data; Can confirm in the supply line of said transformer whether stealing to take place thus, so that can in time take measures on customs clearance, the various losses that effectively reduce electricity filching behavior and brought.In addition, adopt wireless mode transmission data between data collector and the anti-electricity-theft device, make the high-pressure side of transformer and the electric mutual isolation between the low-pressure side, improved the security and the stability of electricity anti-theft system effectively.
It should be appreciated by those skilled in the art that the foregoing description just lists expressivity principle of the present invention and effect are described, but not be used to limit the present invention.Any personnel that are familiar with this technology all can make amendment to the foregoing description under spirit of the present invention and scope.Therefore, rights protection scope of the present invention should be listed like claims.
Claims (9)
1. a data collector is characterized in that, comprising:
Be connected first collecting unit on the transformer first side line road, be used to gather the power supply data on the said transformer first side line road;
Transmitting element is used to send the power supply data that said first collecting unit is gathered;
Power supply unit is used to provide electric energy.
2. data collector according to claim 1 is characterized in that, said first collecting unit is connected transformer high-voltage side line road.
3. data collector according to claim 1 is characterized in that, said power supply unit comprises at least: the electric energy inductor and the reserve battery that form induction electric energy based on the electric current of said transformer high-voltage side.
4. an anti-electricity-theft device is characterized in that, comprising:
Receiving element is used to receive at least one power supply data that transmitting element sent like each described data collector of claim 1 to 3;
Second collecting unit that at least one is connected the transformer second side line road is used to gather the power supply data on the said transformer second side line road;
Processing unit, power supply data that are used for gathering and the conversion of power supply data-switching to the opposite side of said transformer one side concerned determine whether to take place stealing based on the transformer that is received first side power supply data, said second collecting unit.
5. anti-electricity-theft device according to claim 4 is characterized in that, when said transformer is single transformer, in the circuit of first side of said single transformer, is provided with a said data collector; When said transformer is three-phase transformer, in the circuit of each phase of said three-phase transformer first side, be provided with a said data collector.
6. anti-electricity-theft device according to claim 4 is characterized in that, said second collecting unit is connected the step down side circuit.
7. anti-electricity-theft device according to claim 6 is characterized in that, said second collecting unit is connected with the metering ammeter or the distribution monitoring device that are arranged on the transformer second side line road, to gather the power supply data on the said transformer second side line road.
8. anti-electricity-theft device according to claim 7; It is characterized in that; Said second collecting unit is connected through the RS485 bus with the metering ammeter or the distribution monitoring device that are arranged on the transformer second side line road, to gather the power supply data on the said transformer second side line road.
9. an electricity anti-theft system that is applied to single-phase or three-phase transformer is characterized in that, comprising: each described data collector of at least one claim 1 to 3; And each described anti-electricity-theft device of claim 4 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103141205A CN102445577A (en) | 2011-10-17 | 2011-10-17 | Electricity stealing prevention system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103141205A CN102445577A (en) | 2011-10-17 | 2011-10-17 | Electricity stealing prevention system |
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|---|---|
| CN102445577A true CN102445577A (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103141205A Pending CN102445577A (en) | 2011-10-17 | 2011-10-17 | Electricity stealing prevention system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616562A (en) * | 2013-11-26 | 2014-03-05 | 航天科工深圳（集团）有限公司 | Ring main unit electricity larceny prevention system and method |
| CN108802458A (en) * | 2018-07-23 | 2018-11-13 | 宁波三星医疗电气股份有限公司 | A kind of detection method for voltage chopping stealing event |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2149043Y (en) * | 1992-12-05 | 1993-12-08 | 潘子非 | Three-phase supervisor electricity-using |
| CN201166680Y (en) * | 2007-12-07 | 2008-12-17 | 胡建军 | Device of electric power high-voltage measuring box for preventing electricity fraudulent use |
| CN201397356Y (en) * | 2009-03-16 | 2010-02-03 | 湖南泰通电力科技有限公司 | Power system electricity-stealing preventing real-time monitoring system |
| CN201837668U (en) * | 2010-06-02 | 2011-05-18 | 北京博源普沃科技发展有限公司 | Electricity stealing-prevention monitoring device |
| CN201974461U (en) * | 2011-03-15 | 2011-09-14 | 重庆电力科学试验研究院 | Electricity stealing prevention system |
-
2011
- 2011-10-17 CN CN2011103141205A patent/CN102445577A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2149043Y (en) * | 1992-12-05 | 1993-12-08 | 潘子非 | Three-phase supervisor electricity-using |
| CN201166680Y (en) * | 2007-12-07 | 2008-12-17 | 胡建军 | Device of electric power high-voltage measuring box for preventing electricity fraudulent use |
| CN201397356Y (en) * | 2009-03-16 | 2010-02-03 | 湖南泰通电力科技有限公司 | Power system electricity-stealing preventing real-time monitoring system |
| CN201837668U (en) * | 2010-06-02 | 2011-05-18 | 北京博源普沃科技发展有限公司 | Electricity stealing-prevention monitoring device |
| CN201974461U (en) * | 2011-03-15 | 2011-09-14 | 重庆电力科学试验研究院 | Electricity stealing prevention system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616562A (en) * | 2013-11-26 | 2014-03-05 | 航天科工深圳（集团）有限公司 | Ring main unit electricity larceny prevention system and method |
| CN108802458A (en) * | 2018-07-23 | 2018-11-13 | 宁波三星医疗电气股份有限公司 | A kind of detection method for voltage chopping stealing event |
| CN108802458B (en) * | 2018-07-23 | 2020-12-08 | 宁波三星医疗电气股份有限公司 | Detection method for voltage chopping electricity stealing event |
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Application publication date: 20120509 |