CN105092917A - Electricity theft prevention system - Google Patents
Electricity theft prevention system Download PDFInfo
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- CN105092917A CN105092917A CN201510426048.3A CN201510426048A CN105092917A CN 105092917 A CN105092917 A CN 105092917A CN 201510426048 A CN201510426048 A CN 201510426048A CN 105092917 A CN105092917 A CN 105092917A
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Abstract
An electricity theft prevention system comprises a user-side electricity theft prevention unit and a high-low-voltage-side electricity theft prevention unit, wherein the user-side electricity theft prevention unit is an ammeter electricity theft prevention unit which prevents electricity theft through an ammeter, and the high-low-voltage-side electricity theft prevention unit is a line electricity theft prevention unit which mainly prevents electricity theft through unauthorized wiring and parallel branching.
Description
Technical field
The present invention relates to a kind of technical field for distribution management of electric power system, specifically, is a kind of electricity anti-theft system.
Background technology
China's power distribution network development is in extensive disordered state for a long time, and shortage planning is random large, the residual old backwardness of equipment, and load distribution is unreasonable, and seriously, circuit turns mutually for ability, and the inclined business of line loss, quality of voltage is lower for circuit and substation transformer overload.In the face of deficient electric power resource, in the face of growing electricity needs, in the face of needing substantial contribution to drop into the power construction just can carried out, how reasonably to use limited electric power resource, how to realize maximum economic benefit, become the focus of society and the care of vast power supply enterprise.User's stealing electricity phenomenon is day by day serious, and line loss per unit also raises thereupon year by year, and cause the economic loss of country and power supply enterprise serious, benefit reduces, and interests are subject to grievous injury.Common stealing mode has before electric power meter wiring point, by disclosed or hidden method, connects and uses part or all of consumer.As directly at low voltage porcelain bottle place hanging wire, deliberately change the normal wiring of electric energy meter, or deliberately cause metered voltage loop fault, cause the potential winding decompression of electric energy meter or suffered voltage to reduce.Or deliberately cause metering current loop fault, cause the current coil no current of electric energy meter to flow through or only by portion of electrical current etc.
Summary of the invention
For the stealing problem that prior art exists, electricity anti-theft system of the present invention comprises the anti-electricity-theft unit in user side and the anti-electricity-theft unit of high and low pressure side, wherein the anti-electricity-theft unit in user side is electricity meter unit, mainly prevent from adopting ammeter to carry out stealing, the anti-electricity-theft unit of high and low pressure side is the anti-electricity-theft unit of circuit, mainly prevents from passing through circuit and connect branch road to carry out stealing by modes such as wiretappings.
The anti-electricity-theft unit in user side is before user accesses the disconnecting link of electrical network, install one group of CT additional, be called and detect CT, CT, PT of measuring after disconnecting link then remain unchanged, the signal detecting CT is only input in anti-electricity-theft device, and the signal measuring CT, PT carries out except electric energy metrical except being input in electric energy meter, be also input in anti-electricity-theft device simultaneously.Introducing the benefit detecting CT is, as long as assert that detection CT is working properly, as long as then the metering measured value of CT and the detection CT measured value of corresponding phase to be carried out the comparison of amplitude and phase place, just can judge that whether metering CT is working properly., can find out meanwhile, must ensure to detect the normal work of CT and the fault of accurate judgement detection CT, otherwise all will lose meaning to the judgement of metering CT.It is also the emphasis of failure judgement electricity consumption to the detection detecting CT.
For short circuit and the open fault of CT primary side or secondary side, special current mutual inductor coil short circuit, open detection circuit is utilized in system, as long as the feedback signal that main control chip reads in this circuit just accurately can judge that whether the duty of mutual inductor coil is normal, system needs the analog quantity detected to have detection CT three-phase electricity flow valuve, metering CT, PT three-phase current, magnitude of voltage, having 9 tunnel simulating signals needs to be input in main control chip.In order to detect phase relation between each amount.Corresponding amount must be sampled in the same time, otherwise cannot judge phase relation.
The data of synchronized sampling need to utilize fast fourier algorithm to obtain phase angle and amplitude, and FFT require to analog quantity at one-period temporally equal interval sampling, adopt timer circuit in system.
In order to record and store failure message reliably and with long-term, in system, adopt the read-write non-volatile storage having power down not obliterated data; In order to carry out fault inquiry and display, adopt keyboard and display interface circuit: in order to recording time information, in system, adopt real time clock circuit.The three-phase voltage that CT, PT send here, current signal send into the AD passage of controller after the shaping of analog signal conditioner circuit, filtering, and processor completes collection, the treatment and analysis of data, and send LCD to show.
The anti-electricity-theft unit of high and low pressure side gathers the measuring parameter of the original measuring apparatus in monitoring point by the low-voltage acquisition terminal with agreement meter reading interface, adopt the low-voltage acquisition terminal of high-voltage intelligent acquisition terminal and band combination transformer, the data such as the high-pressure side of real-time aggregation power distribution network transformer station critical point, circuit, power load end, the three-phase current of low-pressure side, working voltage, power factor, active power, reactive power, active electrical degree and idle electric degree, and upload to Surveillance center through wireless digital mobile communication network.Thus realize by multistage, the continuous data of acquisition terminal to the high-pressure side real-time monitored and low-pressure side power information data and original measuring apparatus of networking carries out multidirectional comparison, Surveillance center's computing machine by data stored in history (original) database, by carrying out statistic of classification analysis to data, automatic calculating also draws out the load curve of each monitoring point, electric quantity curve, the comparative analysis of high-low pressure electricity and multiplexing electric abnormality etc., the load condition in actual moving process can be analyzed visually, determine the stealing user in distribution system, the misalignment point of measuring apparatus and concrete energy loss amount, thus electricity theft prevention, record stealing electricity, reduce line loss and provide foundation reliably.Simultaneously according to network load situation and customer charge application, power department carries out rational load distribution, assumed load limit value in electricity management terminal.Load is exceeded to the user of setting limit value, sound a warning, notify administrative center simultaneously, repeatedly after prompting, to the user of still overload, implement power-off.
The anti-electricity-theft unit of high and low pressure side have employed modular design, comprising: high-voltage acquisition module, low pressure acquisition module, load control module, Surveillance center and mobile electricity consumption administration module.Each acquisition module is according to the difference of acquisition mode and installation site, can respectively transformer station, feeder line, branch road, node, transformer and measuring apparatus be monitored and be controlled load, thus form multistage, networking, an anti-electricity-theft monitoring system that high voltage and low voltage parameters assisted mutually, independent acquisition and remote meter reading combine and load management control system
High-voltage acquisition module adopts three single-phase high voltage current/voltage combination transformers to carry out the conversion of electricity consumption electric current and voltage, and the power supply realized module, simultaneously, current and voltage data is passed to data acquisition module by high-voltage mutual inductor, data acquisition module is supplied to data processing module after sampling, data processing module sends to communication module after processing data, thus carry out uploading of high-pressure side power information, thus, when the selecting of mutual inductor, demand fulfillment High-Voltage Insulation, the linearity, precision and overload-resistant and anti-overpowering ability.
Low pressure acquisition module adopts the low pressure acquisition module of band mutual inductor, low pressure acquisition module is by three single phase low voltage current transformers, low-voltage electric energy parameter acquisition module, system data processor module, communication module, power supply supplying module forms, the power supply mode of its mesolow acquisition module is identical with high-voltage acquisition module, simultaneously, the operational factor of transformer is gathered or integrated multiple subscriber's meter information acquisition module, complete the collection to user's all kinds table data, data acquisition module is passed to after Data Collection completes, data acquisition module is supplied to data processing module after sampling, data processing module sends to communication module after processing data, thus carry out uploading of low-pressure side power information.
Surveillance center is made up of supervisory control comuter, database server and the system management software etc.Surveillance center is responsible for the Electro-metering condition monitoring data that real-time reception specifies all users in region, is saved in database; Calculate various monitoring parameter, realize the Real-Time Monitoring to Electro-metering situation; The various exception of real-time analysis or warning message, once unusual circumstance, send processing instruction in time, notifies that responsible person concerned carries out site disposal.
Mobile electricity consumption administration module can specify mobile phone to form by user, supervision of power consumption personnel can facilitate reception fault alarm information whenever and wherever possible, for processing measuring apparatus fault in time, prevention and investigation electricity filching behavior, ensure that the accuracy of electric energy metrical provides the information channel of response fast.
Need between each ingredient of system to realize sharing of data, the real needs realizing data sharing with metering are as follows:
All data messages of system comprise: power, electricity, power factor, voltage, electric current, and metrological personnel can be checked by browser.
System, according to ammeter data, for metrological personnel provides analysis tool, makes metrological personnel immediate analysis table meter fault to process, and the condition such as metering can be pressed batch, phenotype number, period carries out fault analysis statistics to ammeter.Analysis tool has the function of the trouble shooting of table meter, data exception and Power Factor Analysis.
The trouble shooting of table meter comprises: ammeter battery exceeds the time limit, error code etc.
Data exception analysis comprises: ammeter clock not to core dumped (lose or arrange mistake) during, ammeter, ammeter is not walked, ammeter falls away, Voltage unbalance, current imbalance, disconnected phase, phase shortage, have reverse electricity, negative-phase sequence etc.
Metrological personnel can set a power factor scope, and system lists the ammeter of power factor in this scope automatically, and the approach obtaining power factor has:
Adopt the result that ammeter itself calculates;
Use the having of ammeter, idle data calculate;
Use the having of ammeter, idle pulse data calculates;
Ammeter power-off under system log (SYSLOG), to restore electricity and ammeter the markers of disconnected equal fault occurs, can know the time that fault occurs during quantitative analysis table meter fault, and as estimating the foundation of remedying electricity.
Utilize data relevant to supervision of power consumption in system, then coupling system can quasi real time to the feature that on-site terminal is monitored, the work such as anti-electricity-theft, voltage monitoring can be carried out preferably.Therefore, system provides following functions to supervision of power consumption:
All data messages of system comprise power, electricity, power factor, electric current and voltage, harmonic data, and supervision of power consumption personnel can be checked by browser.
Analyze overload user, low year user, electric sampling open-phase user, electricity sudden change user, the inconsistent user of two loops (measurement loop and protective loop) electricity.
The information that the supervision of power consumption personnel system of checking provides, the analysis tool that reutilization system provides is analyzed, if find fault, supervision of power consumption personnel send out work subpoena to metering or this department inside.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the anti-electricity-theft unit in user side of electricity anti-theft system.
Fig. 2 is the anti-electricity-theft cellular construction figure of high and low pressure side of electricity anti-theft system.
Embodiment
Electricity anti-theft system comprises the anti-electricity-theft unit in user side and the anti-electricity-theft unit of high and low pressure side, wherein the anti-electricity-theft unit in user side is electricity meter unit, mainly prevent from adopting ammeter to carry out stealing, the anti-electricity-theft unit of high and low pressure side is the anti-electricity-theft unit of circuit, mainly prevents from passing through circuit and connect branch road to carry out stealing by modes such as wiretappings.
As shown in Figure 1, the anti-electricity-theft unit in user side is before user accesses the disconnecting link of electrical network, install one group of CT additional, be called and detect CT, CT, PT of measuring after disconnecting link then remain unchanged, the signal detecting CT is only input in anti-electricity-theft device, and the signal measuring CT, PT carries out except electric energy metrical except being input in electric energy meter, be also input in anti-electricity-theft device simultaneously.Introducing the benefit detecting CT is, as long as assert that detection CT is working properly, as long as then the metering measured value of CT and the detection CT measured value of corresponding phase to be carried out the comparison of amplitude and phase place, just can judge that whether metering CT is working properly., can find out meanwhile, must ensure to detect the normal work of CT and the fault of accurate judgement detection CT, otherwise all will lose meaning to the judgement of metering CT.It is also the emphasis of failure judgement electricity consumption to the detection detecting CT.
For short circuit and the open fault of CT primary side or secondary side, special current mutual inductor coil short circuit, open detection circuit is utilized in system, as long as the feedback signal that main control chip reads in this circuit just accurately can judge that whether the duty of mutual inductor coil is normal, system needs the analog quantity detected to have detection CT three-phase electricity flow valuve, metering CT, PT three-phase current, magnitude of voltage, having 9 tunnel simulating signals needs to be input in main control chip.In order to detect phase relation between each amount.Corresponding amount must be sampled in the same time, otherwise cannot judge phase relation.
The data of synchronized sampling need to utilize fast fourier algorithm to obtain phase angle and amplitude, and FFT require to analog quantity at one-period temporally equal interval sampling, adopt timer circuit in system.
In order to record and store failure message reliably and with long-term, in system, adopt the read-write non-volatile storage having power down not obliterated data; In order to carry out fault inquiry and display, adopt keyboard and display interface circuit: in order to recording time information, in system, adopt real time clock circuit.The three-phase voltage that CT, PT send here, current signal send into the AD passage of controller after the shaping of analog signal conditioner circuit, filtering, and processor completes collection, the treatment and analysis of data, and send LCD to show.
As shown in Figure 2, the anti-electricity-theft unit of high and low pressure side gathers the measuring parameter of the original measuring apparatus in monitoring point by the low-voltage acquisition terminal with agreement meter reading interface, adopt the low-voltage acquisition terminal of high-voltage intelligent acquisition terminal and band combination transformer, the data such as the high-pressure side of real-time aggregation power distribution network transformer station critical point, circuit, power load end, the three-phase current of low-pressure side, working voltage, power factor, active power, reactive power, active electrical degree and idle electric degree, and upload to Surveillance center through wireless digital mobile communication network.Thus realize by multistage, the continuous data of acquisition terminal to the high-pressure side real-time monitored and low-pressure side power information data and original measuring apparatus of networking carries out multidirectional comparison, Surveillance center's computing machine by data stored in history (original) database, by carrying out statistic of classification analysis to data, automatic calculating also draws out the load curve of each monitoring point, electric quantity curve, the comparative analysis of high-low pressure electricity and multiplexing electric abnormality etc., the load condition in actual moving process can be analyzed visually, determine the stealing user in distribution system, the misalignment point of measuring apparatus and concrete energy loss amount, thus electricity theft prevention, record stealing electricity, reduce line loss and provide foundation reliably.Simultaneously according to network load situation and customer charge application, power department carries out rational load distribution, assumed load limit value in electricity management terminal.Load is exceeded to the user of setting limit value, sound a warning, notify administrative center simultaneously, repeatedly after prompting, to the user of still overload, implement power-off.
The anti-electricity-theft unit of high and low pressure side have employed modular design, comprising: high-voltage acquisition module, low pressure acquisition module, load control module, Surveillance center and mobile electricity consumption administration module.Each acquisition module is according to the difference of acquisition mode and installation site, can respectively transformer station, feeder line, branch road, node, transformer and measuring apparatus be monitored and be controlled load, thus form multistage, networking, an anti-electricity-theft monitoring system that high voltage and low voltage parameters assisted mutually, independent acquisition and remote meter reading combine and load management control system
High-voltage acquisition module adopts three single-phase high voltage current/voltage combination transformers to carry out the conversion of electricity consumption electric current and voltage, and the power supply realized module, simultaneously, current and voltage data is passed to data acquisition module by high-voltage mutual inductor, data acquisition module is supplied to data processing module after sampling, data processing module sends to communication module after processing data, thus carry out uploading of high-pressure side power information, thus, when the selecting of mutual inductor, demand fulfillment High-Voltage Insulation, the linearity, precision and overload-resistant and anti-overpowering ability.
Low pressure acquisition module adopts the low pressure acquisition module of band mutual inductor, low pressure acquisition module is by three single phase low voltage current transformers, low-voltage electric energy parameter acquisition module, system data processor module, communication module, power supply supplying module forms, the power supply mode of its mesolow acquisition module is identical with high-voltage acquisition module, simultaneously, the operational factor of transformer is gathered or integrated multiple subscriber's meter information acquisition module, complete the collection to user's all kinds table data, data acquisition module is passed to after Data Collection completes, data acquisition module is supplied to data processing module after sampling, data processing module sends to communication module after processing data, thus carry out uploading of low-pressure side power information.
Surveillance center is made up of supervisory control comuter, database server and the system management software etc.Surveillance center is responsible for the Electro-metering condition monitoring data that real-time reception specifies all users in region, is saved in database; Calculate various monitoring parameter, realize the Real-Time Monitoring to Electro-metering situation; The various exception of real-time analysis or warning message, once unusual circumstance, send processing instruction in time, notifies that responsible person concerned carries out site disposal.
Mobile electricity consumption administration module can specify mobile phone to form by user, supervision of power consumption personnel can facilitate reception fault alarm information whenever and wherever possible, for processing measuring apparatus fault in time, prevention and investigation electricity filching behavior, ensure that the accuracy of electric energy metrical provides the information channel of response fast.
Need between each ingredient of system to realize sharing of data, the real needs realizing data sharing with metering are as follows:
All data messages of system comprise: power, electricity, power factor, voltage, electric current, and metrological personnel can be checked by browser.
System, according to ammeter data, for metrological personnel provides analysis tool, makes metrological personnel immediate analysis table meter fault to process, and the condition such as metering can be pressed batch, phenotype number, period carries out fault analysis statistics to ammeter.Analysis tool has the function of the trouble shooting of table meter, data exception and Power Factor Analysis.
The trouble shooting of table meter comprises: ammeter battery exceeds the time limit, error code etc.
Data exception analysis comprises: ammeter clock not to core dumped (lose or arrange mistake) during, ammeter, ammeter is not walked, ammeter falls away, Voltage unbalance, current imbalance, disconnected phase, phase shortage, have reverse electricity, negative-phase sequence etc.
Metrological personnel can set a power factor scope, and system lists the ammeter of power factor in this scope automatically, and the approach obtaining power factor has:
Adopt the result that ammeter itself calculates;
Use the having of ammeter, idle data calculate;
Use the having of ammeter, idle pulse data calculates;
Ammeter power-off under system log (SYSLOG), to restore electricity and ammeter the markers of disconnected equal fault occurs, can know the time that fault occurs during quantitative analysis table meter fault, and as estimating the foundation of remedying electricity.
Utilize data relevant to supervision of power consumption in system, then coupling system can quasi real time to the feature that on-site terminal is monitored, the work such as anti-electricity-theft, voltage monitoring can be carried out preferably.Therefore, system provides following functions to supervision of power consumption:
All data messages of system comprise power, electricity, power factor, electric current and voltage, harmonic data, and supervision of power consumption personnel can be checked by browser.
Analyze overload user, low year user, electric sampling open-phase user, electricity sudden change user, the inconsistent user of two loops (measurement loop and protective loop) electricity.
The information that the supervision of power consumption personnel system of checking provides, the analysis tool that reutilization system provides is analyzed, if find fault, supervision of power consumption personnel send out work subpoena to metering or this department inside.
The foregoing is only of the present invention and be preferably not limited to the present invention, obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. an electricity anti-theft system, it is characterized in that, electricity anti-theft system comprises the anti-electricity-theft unit in user side and the anti-electricity-theft unit of high and low pressure side, wherein the anti-electricity-theft unit in user side is electricity meter unit, mainly prevent from adopting ammeter to carry out stealing, the anti-electricity-theft unit of high and low pressure side is the anti-electricity-theft unit of circuit, mainly prevents by connecing branch road carry out stealing to circuit.
2. electricity anti-theft system as claimed in claim 1, it is characterized in that, the anti-electricity-theft unit in user side is before user accesses the disconnecting link of electrical network, install one group additional detect CT, metering CT after disconnecting link, PT remains unchanged, the signal detecting CT is only input in anti-electricity-theft device, and measure CT, the signal of PT carries out except electric energy metrical except being input in electric energy meter, also be input in anti-electricity-theft device simultaneously, adopt special current mutual inductor coil short circuit, open detection circuit detects short circuit and the open fault of CT primary side or secondary side, the analog quantity of systems axiol-ogy has detection CT three-phase electricity flow valuve, metering CT, PT three-phase current, magnitude of voltage, totally 9 tunnel simulating signals are input in main control chip.
3. electricity anti-theft system as claimed in claim 2, it is characterized in that, the anti-electricity-theft unit in user side also comprises timer circuit, non-volatile storage, keyboard, display interface circuit and real time clock circuit.
4. electricity anti-theft system as claimed in claim 3, it is characterized in that, the anti-electricity-theft unit of high and low pressure side comprises: high-voltage acquisition module, low pressure acquisition module, load control module, Surveillance center and mobile electricity consumption administration module.
5. electricity anti-theft system as claimed in claim 4, it is characterized in that, the anti-electricity-theft unit of high and low pressure side gathers the measuring parameter of the original measuring apparatus in monitoring point by the low-voltage acquisition terminal with agreement meter reading interface, adopt the low-voltage acquisition terminal of high-voltage intelligent acquisition terminal and band combination transformer, real-time aggregation power distribution network transformer station critical point, circuit, the high-pressure side of power load end, the three-phase current of low-pressure side, working voltage, power factor, active power, reactive power, active electrical degree and idle electric degree data, and upload to Surveillance center through wireless digital mobile communication network, realize carrying out multidirectional comparison by the continuous data of acquisition terminal to the high-pressure side real-time monitored and low-pressure side power information data and original measuring apparatus, Surveillance center's computing machine by data stored in historical data base, by carrying out statistic of classification analysis to data, automatic calculating also draws out the load curve of each monitoring point, electric quantity curve, the comparative analysis of high-low pressure electricity and multiplexing electric abnormality, analyze the load condition in actual moving process, determine the stealing user in distribution system, the misalignment point of measuring apparatus and concrete energy loss amount, simultaneously according to network load situation and customer charge application, power department carries out rational load distribution, assumed load limit value in electricity management terminal, load is exceeded to the user of setting limit value, sound a warning, notify administrative center simultaneously, repeatedly after prompting, to the user of still overload, implement power-off.
6. electricity anti-theft system as claimed in claim 5, it is characterized in that, high-voltage acquisition module adopts three single-phase high voltage current/voltage combination transformers to carry out the conversion of electricity consumption electric current and voltage, and the power supply realized module, meanwhile, current and voltage data is passed to data acquisition module by high-voltage mutual inductor, and data acquisition module is supplied to data processing module after sampling, data processing module sends to communication module after processing data, thus carries out uploading of high-pressure side power information;
Low pressure acquisition module adopts the low pressure acquisition module of band mutual inductor, low pressure acquisition module is by three single phase low voltage current transformers, low-voltage electric energy parameter acquisition module, system data processor module, communication module, power supply supplying module forms, the power supply mode of its mesolow acquisition module is identical with high-voltage acquisition module, simultaneously, the operational factor of transformer is gathered or integrated multiple subscriber's meter information acquisition module, complete the collection to user's all kinds table data, data acquisition module is passed to after Data Collection completes, data acquisition module is supplied to data processing module after sampling, data processing module sends to communication module after processing data, thus carry out uploading of low-pressure side power information,
Surveillance center is made up of supervisory control comuter, database server and the system management software, and Surveillance center is responsible for the Electro-metering condition monitoring data that real-time reception specifies all users in region, is saved in database; Calculate various monitoring parameter, realize the Real-Time Monitoring to Electro-metering situation; The various exception of real-time analysis or warning message, once unusual circumstance, send processing instruction in time, notifies that responsible person concerned carries out site disposal;
Mobile electricity consumption administration module can specify mobile phone to form by user, and supervision of power consumption personnel can facilitate reception fault alarm information whenever and wherever possible.
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| CN105510662A (en) * | 2016-01-29 | 2016-04-20 | 国网山东省电力公司济阳县供电公司 | Multifunctional electric energy metering device |
| CN106018950A (en) * | 2016-07-04 | 2016-10-12 | 深圳市鎏科技有限公司 | Integrated prepayment intelligent control system |
| CN106771447A (en) * | 2016-11-28 | 2017-05-31 | 国家电网公司 | A kind of electric energy metrical is opposed electricity-stealing monitoring device and method |
| CN107390572A (en) * | 2017-06-26 | 2017-11-24 | 国网山东省电力公司宁津县供电公司 | A kind of long-range oppose electricity-stealing checks warning device and method of opposing electricity-stealing |
| CN108303576A (en) * | 2018-01-30 | 2018-07-20 | 国家电网公司 | The method of fast automatic examination and positioning stealing and wrong wiring of electric energy meter |
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| CN109142826A (en) * | 2018-09-05 | 2019-01-04 | 云南电网有限责任公司曲靖供电局 | Adaptive metering fault load records equipment, System and method for |
| CN110988416A (en) * | 2019-12-25 | 2020-04-10 | 重庆华虹仪表有限公司 | Outdoor three-phase high-voltage electric energy meter |
| CN111525697A (en) * | 2020-05-09 | 2020-08-11 | 西安交通大学 | Medium and low voltage power distribution network electricity larceny prevention method and system based on current monitoring and line topology analysis |
| CN112215721A (en) * | 2020-09-04 | 2021-01-12 | 国网青海省电力公司信息通信公司 | Electric power electricity stealing accurate identification and electricity stealing feedback data analysis model based on big data |
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| CN105510662A (en) * | 2016-01-29 | 2016-04-20 | 国网山东省电力公司济阳县供电公司 | Multifunctional electric energy metering device |
| CN105510662B (en) * | 2016-01-29 | 2018-06-26 | 国网山东省电力公司济阳县供电公司 | A kind of multifunctional electric energy metering device |
| CN106018950A (en) * | 2016-07-04 | 2016-10-12 | 深圳市鎏科技有限公司 | Integrated prepayment intelligent control system |
| CN106771447A (en) * | 2016-11-28 | 2017-05-31 | 国家电网公司 | A kind of electric energy metrical is opposed electricity-stealing monitoring device and method |
| CN107390572A (en) * | 2017-06-26 | 2017-11-24 | 国网山东省电力公司宁津县供电公司 | A kind of long-range oppose electricity-stealing checks warning device and method of opposing electricity-stealing |
| CN108303576A (en) * | 2018-01-30 | 2018-07-20 | 国家电网公司 | The method of fast automatic examination and positioning stealing and wrong wiring of electric energy meter |
| CN108303576B (en) * | 2018-01-30 | 2019-11-29 | 国家电网有限公司 | The method of fast automatic examination and positioning stealing and wrong wiring of electric energy meter |
| CN108490233A (en) * | 2018-02-05 | 2018-09-04 | 国电南瑞科技股份有限公司 | A kind of Novel anti-electricity-theft device |
| CN109142826A (en) * | 2018-09-05 | 2019-01-04 | 云南电网有限责任公司曲靖供电局 | Adaptive metering fault load records equipment, System and method for |
| CN110988416A (en) * | 2019-12-25 | 2020-04-10 | 重庆华虹仪表有限公司 | Outdoor three-phase high-voltage electric energy meter |
| CN111525697A (en) * | 2020-05-09 | 2020-08-11 | 西安交通大学 | Medium and low voltage power distribution network electricity larceny prevention method and system based on current monitoring and line topology analysis |
| CN111525697B (en) * | 2020-05-09 | 2022-10-25 | 西安交通大学 | Medium and low voltage power distribution network electricity larceny prevention method and system based on current monitoring and line topology analysis |
| CN112215721A (en) * | 2020-09-04 | 2021-01-12 | 国网青海省电力公司信息通信公司 | Electric power electricity stealing accurate identification and electricity stealing feedback data analysis model based on big data |
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