CN106771450A - User's electric energy meter is opposed electricity-stealing the detection method and situ metrology check device of inspection - Google Patents
User's electric energy meter is opposed electricity-stealing the detection method and situ metrology check device of inspection Download PDFInfo
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- CN106771450A CN106771450A CN201710110481.5A CN201710110481A CN106771450A CN 106771450 A CN106771450 A CN 106771450A CN 201710110481 A CN201710110481 A CN 201710110481A CN 106771450 A CN106771450 A CN 106771450A
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- 238000007689 inspection Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 49
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- 238000004364 calculation method Methods 0.000 claims description 17
- 238000013500 data storage Methods 0.000 claims description 14
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- 230000005856 abnormality Effects 0.000 claims description 5
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- 238000007789 sealing Methods 0.000 abstract description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
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Abstract
Match the situ metrology check device for using the invention discloses a kind of detection method of inspection of being opposed electricity-stealing to user's electric energy meter and with the method, the situ metrology check device carries easy, it is easy to use, it is simple to operate, it is easy to operate and measurement accuracy is high suitable for the inspection of each high-low pressure user metering device and inspection scene of opposing electricity-stealing；Cooperation is opposed electricity-stealing the detection method of inspection to user's electric energy meter, make detection process simple and be as a result easy to judge, it is to avoid is torn open in checking process and is opened the steps such as lead sealing, dismounting table cover, secondary electrical measurement, step is succinct, practical, with promotional value.
Description
Technical field
It is more particularly to a kind of that user's electric energy meter is opposed electricity-stealing the present invention relates to the detection means technical field of user's electric energy meter
The detection method and situ metrology check device of inspection.
Background technology
During the site inspection of user's electric energy meter (being also called electric power meter), inspection personnel typically utilizes instrument
Meter check user whether stealing, to hit user's stealing electricity phenomenon, it is ensured that normal electricity consumption order；However, work on the spot equipment is big
Part needs to contact charged facility, has both needed to take measurement seal apart, it is also desirable to read meter operation information, existing Site Detection
It is more with instrument and meter species, including clamp on amperemeter, voltmeter, calculator, universal meter, on-site calibrator etc., during detection, need
Tear open and open lead sealing, dismounting table cover, measure secondary electricity, apply the steps such as seal, and during measurement secondary side electricity, field test instrument compared with
It is heavy, inconvenient to carry and in false wiring judge it is more difficult, if carrying out voltage x current value measurement using voltmeter, ammeter,
Calculator is reused to be calculated, during, complex steps, and some of the staff to instrument application method more using instrument species
Grasp not in place, cause inspection personnel's instrument to carry the problems such as inconvenient, work is complicated, measurement data is inaccurate.Therefore having must
Design it is a meet carrying portable, table measurement can analyze the situ metrology check device of result.
The content of the invention
Opposed electricity-stealing it is an object of the invention to provide a kind of simple and convenient user's electric energy meter the detection method of inspection.
It is a further object of the present invention to provide a kind of carrying portable, realize that a table divides by measuring using above-mentioned detection mode
Separate out the whether normal situ metrology check device of detection user power utilization.
Therefore, technical solution of the present invention is as follows：
A kind of detection method of inspection of being opposed electricity-stealing to user's electric energy meter, it is characterised in that comprise the following steps：
S1, the number of revolutions N of the rotating disk for flashing number of times or stem-winder to the meter in user's electric energy meter one minute are counted
Number, the times N and timing time T that will be obtained is recorded；
S2, respectively magnitude of voltage and current value of measurement user's electric energy meter load side per phase：
If user's electric energy meter is single-phase electric energy meter, the pressure difference U between measurement zero line and live wirea, and on zero line or live wire
Electric current Ia；
If user's electric energy meter is three-phase and four-line electric energy meter, the phase voltage U of A, B, C three-phase is measured respectivelya、UbAnd Uc, and
The current value I of A, B, C three-phasea、IbAnd Ic；
If user's electric energy meter is three-phase and four-line electric energy meter, the phase voltage U of A, C two-phase is measured respectivelyaAnd Uc, and A, C two
The current value I of phaseaAnd Ic(B-phase zero line, without measurement)；
S3, the actual metered power P for calculating user's electric energy meter1：P1=3600*N*KI*KU/ (C*T), wherein, C is electric energy
Table constant, imp/kwh；N is the rotating disk number of revolutions of record in step S1；T is timing time, s；KIIt is the electric current of user configuring
Transformer (CT) no-load voltage ratio；KUIt is voltage transformer (PT) no-load voltage ratio of user configuring；
Wherein, KIAnd KUIt is the parameter of user's electric energy meter, its occurrence is related to the electric energy meter of user's actual installation, in reality
During border is verified, KIAnd KUSpecific value acquisition can be inquired about from SG186 power marketing business application systems.
S4, the load power P for calculating user's electric energy meter2：
Wherein, UaFor single-phase electric energy meter zero line and live wire between pressure difference UaOr the phase of phase three-wire three/tetra- line electric energy meter A phases
Voltage, V；UbIt is the phase voltage of three-phase and four-line electric energy meter B phases, V；UcIt is the phase voltage of phase three-wire three/tetra- line electric energy meter C phases, V；Ia
It is the electric current on the zero line or live wire of single-phase electric energy meter or the electric current of phase three-wire three/tetra- line electric energy meter A phases, A；IbIt is three-phase and four-line
The electric current of electric energy meter B phases, A；IcIt is the electric current of phase three-wire three/tetra- line electric energy meter C phases, A；It is power factor, wherein, voltage
Grade belongs to low-voltage customer for 220V or 380V users', itsValue is 1, and voltage class is the category of more than 10kV users
In high voltage customer, itsValue be take power-factor meter reading numerical value；
S5, calculating P1And P2Ratio z：Z=P1/P2If z ＞ 90% are considered as electric energy meter metering normal；If z≤
90%, then it is considered as electric energy meter metering abnormal.
Wherein, current value is measured before step S1, the abnormality if electric energy meter load kicks the beam or exists, will step
The numerical value acquisition modes of N and T are changed in rapid S1：The break time timing once flashed with meter or rotated, that is, obtain N=1, T
For the interval time that adjacent meter flashes or rotate.
Electric energy meter load kicks the beam and refers to situation of the current value less than 0.5 ampere；It refers to load line that electric energy meter has abnormality
Current value exceeds 10 amperes, while electric energy meter operation is flashed once for more than 3 minutes.
It is a kind of to user's electric energy table look-up and the situ metrology check device of inspection of opposing electricity-stealing, it passes through existing pincerlike electric current
Table transformation is obtained, its primary structure for maintaining existing clamp on amperemeter, including Handheld Division and binding clip, the housing of the Handheld Division
Current measuring device and power supply are inside provided with, surface of shell is provided with display and for controlling the binding clip of binding clip closure or openness to pull
Machine；Transformation part is specially and includes：Time set, voltage measuring apparatus, data are had additional in the housing of the Handheld Division to deposit
Storage device and logical calculated device；Correspondingly, the surface of shell in the Handheld Division is provided with measurement pattern change-over switch, function key
Disk, time switch, measurement driving switch, voltage measurement v- Ω ports and voltage measurement COM port；Wherein,
The current measuring device, the voltage measuring apparatus and the time set connect with the data storage device
Connect, for being stored to the data that above-mentioned each measurement device is obtained；
The data storage device and the logical calculation device are connected；The logical calculation device is by transferring the number
Respective formula computing is carried out according to the instruction of operator according to the data stored in storage device, the fortune of user's electric energy meter is finally given
Row data result, judges whether user's electric energy meter normal operation or has the possibility of stealing problem with this；
The measurement pattern change-over switch respectively with the current measuring device, the voltage measuring apparatus and the timing
Device is connected；Specifically, select to survey the current measuring device, the voltage by rotating the measurement pattern change-over switch
Amount device or the time set are connected with power supply, to carry out the measure work of corresponding data；
The display respectively with the function keyboard, the current measuring device, the voltage measuring apparatus, the meter
When device and the logical calculation device connection, for show in real time the current measuring device, the voltage measuring apparatus and
The time set measures numerical value under corresponding working state, and the real-time input numerical value of the function keyboard or the logic are transported
Calculate the result of calculation numerical value of device；
The function keyboard is connected with the data storage device and the logical calculation device respectively, is respectively used to control
Whether the measurement data of each device is stored to the data storage device, controls the logical calculation device to carry out corresponding formula
Computing；
The time switch is connected with the time set；Time switch every first is pressed as timing starts, and is pressed for the second time
Down for timing terminates, display accordingly shows timing time T；
The measurement driving switch is connected with power supply, the current measuring device, the voltage measuring apparatus respectively, respectively
For controlling electric power starting or closure, the current measuring device measures the corresponding of range and the voltage measuring apparatus accordingly
Measurement range.
Further, the binding clip is set from the oblique side in the Handheld Division top, and the internal diameter of the binding clip is slightly larger than
The external diameter of the lateral coil of user's electric energy meter busbar one.
Compared with prior art, the situ metrology check device possesses carrying portable, easy to use, simple to operate, is applicable
It is easy to operate and measurement accuracy is high in the inspection of each high-low pressure user metering device and inspection scene of opposing electricity-stealing；Coordinate to user
Electric energy meter is opposed electricity-stealing the detection method of inspection, make detection process simple and be as a result easy to judge, it is to avoid torn open in checking process
The steps such as lead sealing, dismounting table cover, secondary electrical measurement are opened, step is succinct, practical, with promotional value.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the detection method of user's electric energy table look-up of the invention and inspection of opposing electricity-stealing；
Fig. 2 is the structural representation of situ metrology check device of the invention；
Fig. 3 is the Handheld Division internal part structural representation of situ metrology check device of the invention.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described further, but following embodiments are absolutely not to this hair
It is bright to have any limitation.
As shown in Fig. 2 a kind of measure check device suitable for electric energy table look-up and the novel site of inspection of opposing electricity-stealing, including
Handheld Division 1 and binding clip 2；Time set, voltage measuring apparatus are provided with the housing of the Handheld Division 1, data storage device, are patrolled
Collect computing device, current measuring device and power supply；Surface of shell in the Handheld Division 1 be provided with measurement pattern change-over switch 101,
Display 102, function keyboard 103, time switch 104, measurement driving switch 105, voltage measurement v- Ω ports 107, voltage are surveyed
Amount COM port 108 and the binding clip trigger 106 for controlling the closure or openness of binding clip 2；Specifically：
As shown in figure 3, the current measuring device, the voltage measuring apparatus and the time set with the data
Storage device is connected, for being stored to the data that above-mentioned each measurement device is obtained；
The data storage device and the logical calculation device are connected；The logical calculation device includes the first formula mould
Block, the second formula module and the 3rd formula module, wherein, the first formula module editor has formula (1)：P1=3600*N*
KI*KU/ (C*T), the second formula module editor has formulaDescribed
Three formula module editors have formula (3)：Z=P1/P2；When being finished to whole numerical measurings and data storage device described in storage value
Afterwards, you can carry out respective formula computing according to the instruction of operator by transferring the data stored in the data storage device,
The service data result of user's electric energy meter is finally given, judges whether user's electric energy meter normal operation or has stealing problem with this
May；
The measurement pattern change-over switch 101 respectively with the current measuring device, voltage measuring apparatus and described
Time set is connected；Specifically, selected the current measuring device, institute by rotating the measurement pattern change-over switch 101
State voltage measuring apparatus or the time set is connected with power supply, to carry out the measure work of corresponding data；
The display 102 respectively with the function keyboard 103, the current measuring device, the voltage measuring apparatus,
The time set and the logical calculation device are connected, for showing the current measuring device, the voltage measurement in real time
Device and the time set measure numerical value under corresponding working state, the real-time input numerical value of the function keyboard 103 or
The result of calculation numerical value of the logical calculation device；
The function keyboard 103 is connected with the data storage device and the logical calculation device respectively, is respectively used to
Control whether the measurement data of each device is stored to the data storage device, i.e., by being set on the function keyboard 103
Acknowledgement key, and control the logical calculation device to carry out corresponding formula operation, i.e., by being set in the function keyboard
Respective formula computing button on 103；
The time switch 104 is connected with the time set；Time switch 104 every first is pressed as timing starts, the
Secondary to press as timing terminates, display 102 accordingly shows timing time T；
The measurement driving switch 105 is connected with power supply, the current measuring device, the voltage measuring apparatus respectively,
It is respectively used to control electric power starting or closure, the current measuring device measures range and the voltage measuring apparatus accordingly
Corresponding measurement range；Due to the corresponding current value that during current measurement or voltage measurement, is measured from suitable range or
Magnitude of voltage is more accurate, therefore, the current measuring device is specifically set with two measurement gears of 200A and 1000A, the electricity
Pressure measuring device is specifically set with two measurement gears of 220V and 380V.
In order to ensure safe operation, make survey crew to greatest extent away from measurement winding displacement, the binding clip is from described hand-held
The oblique side in portion top is set, and the binding clip 2 external diameter of the internal diameter slightly larger than the lateral coil of user's electric energy meter busbar one, make its right
When the larger busbar line of external diameter carries out curtage measurement, it is also ensured that the binding clip can be closed completely；In addition, institute
The surface of shell for stating Handheld Division 1 is additionally provided with the corresponding blank scribbled 109 and measuring state locking key for measuring constant of record (i.e.
Hold keys) 110.
The surface of the function keyboard 103 is provided with protection cap 111, and the correct operation formula operation for ease of operating personnel is pressed
Key, the corresponding specific formula of each formula operation button is printed with the inner side of protection cap 111.
A kind of user's electric energy table look-up to user and the detection method of inspection of opposing electricity-stealing, as shown in figure 1, including following step
Suddenly：
Current value during S1, measure user's electric energy meter use, and make the following judgment：
Situation 1：Current value is less than 0.5 ampere, then show that electric energy meter load kicks the beam；
Situation 2：Load line current value exceeds 10 amperes, while electric energy meter operation is flashed once for more than 3 minutes, then shows electricity
Energy table is abnormality；
Situation 3：There is not the phenomenon of above-mentioned situation 1 or situation 2 in current value, then show that electric energy meter use state is normal；
If the current value of user's electric energy meter belongs to the situation 3 in step S1, to user's electric energy meter in timing time T
The number of revolutions N that meter flashes the rotating disk of number of times or stem-winder is counted, and the times N and timing time T that will be obtained are remembered
Record；
If the current value of user's electric energy meter belongs to situation 1 or situation 2 in step S1, once flashed with meter or rotated
Break time timing, that is, obtain N=1, T is the interval time that adjacent meter flashes or rotate；
S2, respectively magnitude of voltage and current value of measurement user's electric energy meter load side per phase：
If user's electric energy meter is single-phase electric energy meter, the pressure difference U between measurement zero line and live wirea, and on zero line or live wire
Electric current Ia；
If user's electric energy meter is three-phase and four-line electric energy meter, the phase voltage U of A, B, C three-phase is measured respectivelya、UbAnd Uc, and
The current value I of A, B, C three-phasea、IbAnd Ic；
If user's electric energy meter is three-phase three-wire electric energy meter, the phase voltage U of A, C two-phase is measured respectivelyaAnd Uc, and A, C two
The current value I of phaseaAnd Ic；
Wherein, before current value measurement is carried out, current value range is determined according to live meter capacity or transformer capacity,
So as to be determined to the selection of current measurement gear；If current value range cannot be determined, larger range is first selected, then subtracted by shelves
It is small, it is transformed into suitable gear.
S3, the actual metered power P for calculating user's electric energy meter1, specifically, by formula：
P1=3600*N*KI*KU/ (C*T) formulas (1),
Wherein, in formula (1)：
C is constant of electric energy meter, and it can be directly obtained from the nameplate of electric energy meter, and unit is imp/kwh or r/kwh；
N is that the meter of record in step S1 flashes number of times (imp) or rotating disk number of revolutions (r)；
T is timing time, and unit is s；
KIIt is current transformer (CT) no-load voltage ratio of user's electric energy meter configuration；
KUIt is voltage transformer (PT) no-load voltage ratio of user's electric energy meter configuration；
S4, the load power P for calculating user's electric energy meter2, specifically, by formula：
Wherein, in formula (2)：
UaFor single-phase electric energy meter zero line and live wire between pressure difference UaOr the phase voltage of phase three-wire three/tetra- line electric energy meter A phases,
V；
UbIt is the phase voltage of three-phase and four-line electric energy meter B phases, V；
UcIt is the phase voltage of phase three-wire three/tetra- line electric energy meter C phases, V；
IaIt is the electric current on the zero line or live wire of single-phase electric energy meter or the electric current of phase three-wire three/tetra- line electric energy meter A phases, A；
IbIt is the electric current of three-phase and four-line electric energy meter B phases, A；
IcIt is the electric current of phase three-wire three/tetra- line electric energy meter C phases, A；
It is power factor, voltage class belongs to low-voltage customer for 220V or 380V users under normal circumstances, itsValue is 1；Voltage class belongs to high voltage customer for more than 10kV users', itsValue be and take power factor
The numerical value that table reads；
S5, calculating P1And P2Ratio z, and to user's electric energy meter metering situation judge, specifically, by formula：
Z=P1/P2Formula (3)
If z ＞ 90%, it is considered as the metering of user's electric energy meter normal；
If z≤90%, it is considered as the metering of user's electric energy meter abnormal, it is necessary to further check or report and submit other professionals to enter
Row is investigated and prosecuted.
Claims (5)
1. a kind of detection method of inspection of being opposed electricity-stealing to user's electric energy meter, it is characterised in that comprise the following steps：
The number of revolutions N that S1, the meter to user's electric energy meter in a period of time T flash the rotating disk of number of times or stem-winder is counted
Number, the times N and timing time T that will be obtained is recorded；
S2, respectively magnitude of voltage and current value of the measurement customer charge side per phase：If user's electric energy meter is single-phase electric energy meter, measure
Pressure difference U between zero line and live wirea, and the electric current I on zero line or live wirea；If user's electric energy meter is three-phase and four-line electric energy meter,
The phase voltage U of A, B, C three-phase is measured respectivelya、UbAnd Uc, and A, B, C three-phase current value Ia、IbAnd Ic；If user's electric energy meter
It is three-phase three-wire electric energy meter, then measures the phase voltage U of A, C two-phase respectivelyaAnd Uc, and A, C two-phase current value IaAnd Ic；
S3, the actual metered power P for calculating user's electric energy meter1：P1=3600*N*KI*KU/ (C*T), wherein, C is that electric energy meter is normal
Number, imp/kwh；N is the rotating disk number of revolutions of record in step S1；T is timing time, s；KIFor the electric current of user's electric energy meter is mutual
Sensor (CT) no-load voltage ratio；KUIt is voltage transformer (PT) no-load voltage ratio of user's electric energy meter；
S4, the load power P for calculating user's electric energy meter2：
Wherein, UaFor single-phase electric energy meter zero line and live wire between pressure difference UaOr the phase voltage of phase three-wire three/tetra- line electric energy meter A phases,
V；UbIt is the phase voltage of three-phase and four-line electric energy meter B phases, V；UcIt is the phase voltage of phase three-wire three/tetra- line electric energy meter C phases, V；IaIt is list
The electric current of electric current or phase three-wire three/tetra- line electric energy meter A phases on the zero line or live wire of phase electric energy meter, A；IbIt is three-phase and four-line electric energy
The electric current of table B phases, A；IcIt is the electric current of phase three-wire three/tetra- line electric energy meter C phases, A；It is power factor, wherein, wherein, electricity
Pressure grade belongs to low-voltage customer for 220V or 380V users', itsValue is 1；Voltage class is more than 10kV users'
Belong to high voltage customer, itsValue be take power-factor meter reading numerical value；
S5, calculating P1And P2Ratio z：Z=P1/P2If z ＞ 90% are considered as electric energy meter metering normal；If z≤90%, depending on
For electric energy meter measures abnormal.
2. detection method according to claim 1, it is characterised in that be measured to current value before step S1, if electric
Can table load kick the beam or exist abnormality, then the numerical value acquisition modes of N and T in step S1 are changed to：Once flashed with meter
Or the break time timing for rotating, that is, obtaining N=1, T is the interval time that adjacent meter flashes or rotate.
3. detection method according to claim 2, it is characterised in that electric energy meter load kicks the beam finger current value less than 0.5 peace
The situation of training；It refers to that load line current value exceeds 10 amperes that electric energy meter has abnormality, while electric energy meter runs more than 3 minutes
Flash once.
4. a kind of to user's electric energy table look-up and the situ metrology check device of inspection of opposing electricity-stealing, including Handheld Division (1) and binding clip
(2), it is characterised in that the Handheld Division (1) includes the current measuring device, voltage measuring apparatus, the meter that are arranged in a housing
When device, data storage device and logical calculation device, and the measurement pattern change-over switch for being arranged on the surface of shell
(101), display (102), function keyboard (103), time switch (104), measurement driving switch (105), voltage measurement v- Ω
Port (107) and voltage measurement COM port (108)；Wherein, the current measuring device, voltage measuring apparatus and described
Time set is connected with the data storage device；The data storage device and the logical calculation device are connected；It is described
Measurement pattern change-over switch (101) connects with the current measuring device, the voltage measuring apparatus and the time set respectively
Connect；The display (102) respectively with the function keyboard (103), the current measuring device, the voltage measuring apparatus,
The time set and the logical calculation device are connected；The function keyboard (103) is connected with the logical calculation device；Institute
Time switch (104) is stated to be connected with the time set；Measurement driving switch (105) is surveyed with power supply, the electric current respectively
Amount device, voltage measuring apparatus connection.
5. situ metrology check device according to claim 4, it is characterised in that the binding clip (2) is from the Handheld Division
(1) external diameter of the internal diameter slightly larger than the lateral coil of user's electric energy meter busbar one of the oblique side setting in top, and the binding clip (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710110481.5A CN106771450A (en) | 2017-02-28 | 2017-02-28 | User's electric energy meter is opposed electricity-stealing the detection method and situ metrology check device of inspection |
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|---|---|---|---|
| CN201710110481.5A CN106771450A (en) | 2017-02-28 | 2017-02-28 | User's electric energy meter is opposed electricity-stealing the detection method and situ metrology check device of inspection |
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Cited By (11)
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| CN107621562A (en) * | 2017-07-21 | 2018-01-23 | 国网浙江省电力公司 | A kind of single-phase meter shunting accurate judgement method for being used to analyze stealing |
| CN107942113A (en) * | 2017-11-29 | 2018-04-20 | 国家电网公司 | Failure electric quantity compensating method and system |
| CN108120862A (en) * | 2017-11-29 | 2018-06-05 | 国网河南省电力公司焦作供电公司 | The method of portable rapid stealing detecting electric installation and rapid stealing detecting electricity |
| CN108593989A (en) * | 2018-05-23 | 2018-09-28 | 国网天津市电力公司 | 10kV transformer efficiencies and current methods are calculated using ammeter pulse flicker interval |
| CN109101594A (en) * | 2018-07-27 | 2018-12-28 | 国家电网有限公司 | A kind of method, apparatus and terminal detecting stealing suspicion user |
| CN109655778A (en) * | 2018-12-27 | 2019-04-19 | 国网湖南省电力有限公司 | The quickly method of investigation stealing |
| CN110231512A (en) * | 2019-07-04 | 2019-09-13 | 深圳曼顿科技有限公司 | Single firewire electric energy metering device |
| CN111965585A (en) * | 2020-08-11 | 2020-11-20 | 云南电网有限责任公司电力科学研究院 | Electric energy meter abnormity judgment method |
| CN112014610A (en) * | 2020-08-26 | 2020-12-01 | 广东电网有限责任公司梅州供电局 | Anti-electricity-stealing device applied to electric meter |
| CN114002469A (en) * | 2021-11-03 | 2022-02-01 | 国网四川省电力公司成都供电公司 | Electricity stealing detection method and device and electricity stealing detector |
| CN114200384A (en) * | 2021-12-14 | 2022-03-18 | 国网黑龙江省电力有限公司供电服务中心 | Electric energy meter detection device with multi-station structure |
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| CN109655778A (en) * | 2018-12-27 | 2019-04-19 | 国网湖南省电力有限公司 | The quickly method of investigation stealing |
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| CN112014610A (en) * | 2020-08-26 | 2020-12-01 | 广东电网有限责任公司梅州供电局 | Anti-electricity-stealing device applied to electric meter |
| CN114002469A (en) * | 2021-11-03 | 2022-02-01 | 国网四川省电力公司成都供电公司 | Electricity stealing detection method and device and electricity stealing detector |
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