CN109116291B - High-voltage electric energy calibrating device capable of integrally tracing source and calibrating method - Google Patents
High-voltage electric energy calibrating device capable of integrally tracing source and calibrating method Download PDFInfo
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- CN109116291B CN109116291B CN201811233970.0A CN201811233970A CN109116291B CN 109116291 B CN109116291 B CN 109116291B CN 201811233970 A CN201811233970 A CN 201811233970A CN 109116291 B CN109116291 B CN 109116291B
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
The invention discloses a high-voltage electric energy verification device capable of integrally tracing and a verification method, wherein the verification device comprises a verification device control module and a three-phase standard power source; the calibrating device control module comprises an industrial personal computer, a pulse input/output board, a digital quantity signal conversion board and a first optical terminal; the three-phase standard power source comprises a second optical transceiver and three single-phase standard power sources which are respectively connected with the second optical transceiver. The invention adopts the optical terminal to connect the industrial control detection part and the power source part, so that the high-voltage and low-voltage two sides are completely separated electrically, and the safety performance of the equipment is greatly improved. Meanwhile, the temperature detection module is adopted, so that the verification errors at different temperatures can be converted into verification errors at 20 ℃, and the comparability of verification results is enhanced.
Description
Technical Field
The invention relates to a high-voltage electric energy verification device and a high-voltage electric energy verification method.
Background
Along with the rapid development of economy, the power demand is larger and larger, and digitization, informatization and networking are the development directions of electric energy metering and power grid measurement and control technologies. The income of the electric charge is the main business income of the electric power enterprise, and the basis for accounting the electric charge is mainly realized through an electric energy charging device, wherein the high-voltage electric energy meter device is an important electric energy charging instrument. The device has excellent electricity larceny prevention performance because the high-voltage electricity meter metering unit is positioned at the high-voltage side and the conventional low-voltage electricity larceny means is difficult to implement. The high-voltage electric energy meter is used as a metering device, and can be put into use only after being qualified through professional objective and accurate metering verification devices.
For the traditional high-voltage electric energy metering device, the internal voltage transformer, the current transformer and the electric energy meter are respectively detected, and when the voltage transformer, the current transformer and the electric energy meter reach certain accuracy requirements, the accuracy of the whole high-voltage electric energy metering device is evaluated by using an error comprehensive method. The method is not in accordance with the basic principles specified by national standards regarding electric energy meters and electric energy meter inspection devices: "errors of all meters and measuring devices must be actually measured, and errors calculated by other measurements and combined with reference voltage, current and power factor are not used as the basis for evaluating the basic errors of the devices"; and secondly, the method is not suitable for integral verification of the novel integrated high-voltage electric energy meter.
At present, some existing high-voltage electric energy meter integral calibrating devices mostly adopt a standard meter, a low-voltage signal source and a high-voltage transformer scheme, all components are mutually independent and are connected by adopting wires. Although the scheme can realize the integral verification of the high-voltage electric energy meter, the verification device cannot realize the integral tracing of the precision, and the standard magnitude tracing is gradually traced to the national electric energy reference (3 multiplied by 10) through each level of standards -5 ). Under the high current state, the internal resistance loss of the lead cannot be ignored, and the contact resistance is different when the lead is connected every time, so that the accuracy of the calibrating device can be changed, and the accuracy and the legality of the accuracy result of calibrating the high-voltage electric energy meter are directly influenced. Meanwhile, in JJG 597-2005 AC electric energy meter calibrating device, the device is required to carry out first subsequent calibration 1 year after the first calibration, and the calibration period of the subsequent calibration is 2 years. The existing verification device is not small enough in design, difficult to move and inconvenient to verify by a detection mechanism in the later period.
Disclosure of Invention
The invention provides a high-voltage electric energy verification device and a verification method capable of integrally tracing, and aims at: (1) enabling the accuracy of the calibrating device to be wholly traceable; (2) The mobility of the calibrating device is improved, and the later calibration is convenient.
The technical scheme of the invention is as follows:
the high-voltage electric energy verification device capable of integrally tracing comprises a verification device control module and a three-phase standard power source;
the calibrating device control module comprises an industrial personal computer, a pulse input/output board, a digital quantity signal conversion board and a first optical terminal; the pulse input and output board and the digital quantity signal conversion board are respectively connected with the industrial personal computer, the first optical terminal is connected with the digital quantity signal conversion board, and the pulse input and output board is used for being connected with a detected high-voltage electric energy meter;
the three-phase standard power source comprises a second optical transceiver and three single-phase standard power sources which are respectively connected with the second optical transceiver;
the single-phase standard power source comprises a low-voltage signal source, a standard meter, a power amplifier, a booster, a voltage transformer, a current booster and a current transformer; the standard table is connected with the second optical transceiver; the current output end of the standard meter is connected with a standard current source in the low-voltage signal source, the voltage output end of the standard meter is connected with a standard voltage source in the low-voltage signal source, the standard current source is connected with a booster through a power amplifier, and the standard voltage source is connected with the booster through the power amplifier; the output end of the current booster is used for outputting standard current to the detected high-voltage electric energy meter and is connected with the current feedback end of the standard meter; the output end of the booster is used for outputting standard voltage to the detected high-voltage energy meter and is connected with the voltage feedback end of the standard meter;
the first optical transceiver is connected with the second optical transceiver.
As a further improvement of the invention: the single-phase standard power source further comprises a temperature sensor, and the temperature sensor is connected with the standard meter.
As a further improvement of the invention: the single-phase standard power source further comprises a case, the low-voltage signal source, the standard meter, the power amplifier, the booster, the voltage transformer, the current booster and the current transformer are placed in the case, and universal wheels are installed at the bottom of the case.
As a further improvement of the invention: the verification device control module further comprises a user interface connected with the industrial personal computer.
As a further improvement of the invention: the digital quantity signal conversion board transmits a command sent by the industrial personal computer to the standard power source through the optical terminal machine so as to control the standard power source, and meanwhile, the digital quantity signal conversion board analyzes data transmitted by the standard power source into a digital quantity signal and transmits the digital quantity signal to the industrial personal computer.
As a further improvement of the invention: the industrial personal computer measures and locks the phase between the standard current source and the standard voltage source;
the standard voltage output process is as follows: the standard voltage source of the low-voltage signal source outputs a small signal, a high voltage is output through the power amplifier and the booster, the output high-voltage signal is converted into a small signal through the voltage transformer and is fed back to the standard meter, and the standard meter dynamically adjusts the output of the low-voltage signal source through the PID algorithm so as to ensure the output precision of the standard voltage;
as a further improvement of the invention: the standard current source of the low-voltage signal source outputs a small signal, a large current is output through the power amplifier and the current booster, the output large current signal is converted into a small signal through the current transformer and is fed back to the standard meter, and the standard meter dynamically adjusts the output of the low-voltage signal source through the PID algorithm so as to ensure the output precision of the standard current.
As a further improvement of the invention: the pulse input/output board collects the pulse output by the detected high-voltage energy meter, and then sends the pulse to the industrial personal computer, and the industrial personal computer compares the pulse with the standard pulse output by the standard power source to calculate the error of the detected high-voltage energy meter.
The verification method of the high-voltage electric energy verification device based on the integral traceability comprises the following steps of:
1) Connecting a qualified high-voltage energy meter to a standard power source of the calibrating device;
2) Placing a second optical transceiver, a qualified high-voltage energy meter and a standard power source connected with the qualified high-voltage energy meter into a temperature control chamber;
3) Setting electric energy meter detection parameters on an industrial personal computer, setting a temperature sequence, setting the temperature of a temperature control chamber according to a first temperature value in the temperature sequence, and waiting for the temperature of the temperature control chamber to be stable;
4) Starting an electric energy meter verification program on an industrial personal computer, sending a control command to a standard power source, and sending a voltage and current output value of the standard power source and detection data of a temperature sensor to the industrial personal computer by a standard meter of a single-phase standard power source connected with a qualified high-voltage electric energy meter;
5) The pulse input/output board collects data output by the qualified high-voltage energy meter to be detected and sends the data to the industrial personal computer, and the industrial personal computer compares the data output by the qualified high-voltage energy meter to be detected with data sent by a standard power source and calculates to obtain a high-voltage energy meter error;
6) Setting the temperature of the temperature control chamber according to the temperature value of the temperature sequence in sequence, and repeatedly executing the step 4) and the step 5) after waiting for the temperature stabilization of the temperature control chamber each time;
7) Calculating the ratio of the electric energy meter errors at different temperatures to the electric energy meter errors obtained at 20 ℃): c (C) T =R T /R 20 The method comprises the steps of carrying out a first treatment on the surface of the Wherein R is T For the error of the electric energy meter at the temperature T, R 20 The error of the electric energy meter at 20 ℃;
8) Detecting another high-voltage electric energy meter to be detected outside the temperature control chamber by using a verification device to obtain the temperature T of the detected high-voltage electric energy meter Real world Error R of Real world ；
9) Converting the error of the detected high-voltage electric energy meter at 20 ℃):
R=R real world /C Real world The method comprises the steps of carrying out a first treatment on the surface of the C in the formula Real world For the temperature sequence and T Real world The error ratio corresponding to the closest temperature value.
Compared with the prior art, the invention has the following positive effects: (1) The invention adopts the optical transceiver to connect the industrial control detection part and the power source part, so that the high-voltage and low-voltage two sides are completely separated electrically, and the safety performance of the equipment is greatly improved; (2) The temperature detection module is arranged on the standard detection part, so that the working temperature of the standard power source can be detected, the errors of the electric energy meter to be detected are detected at different temperatures, and finally, the verification errors at different temperatures are uniformly converted into verification errors at 20 ℃, so that the comparability of verification results is enhanced; (3) The signal source, the mutual inductor, the standard meter and the like are integrated in one case, so that the precision can be traced integrally; (4) Simulating the current output with the 10kV high voltage equipotential under the high voltage network state, and verifying the precision of the high voltage electric energy meter; (5) Each single-phase standard power source is arranged in the case, has small volume and is provided with universal wheels, and the movement is convenient.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic representation of the connection of the present invention during the performance of an assay.
Detailed Description
The following describes the technical scheme of the invention in detail:
referring to fig. 1, a high-voltage electric energy verification device capable of integrally tracing comprises a verification device control module 1 and a three-phase standard power source 14.
The calibrating device control module 1 comprises an industrial personal computer 3, a pulse input/output board 4, a digital quantity signal conversion board 5 and a first optical terminal; the pulse input and output board 4 and the digital quantity signal conversion board 5 are respectively connected with the industrial personal computer 3, the first optical transceiver is connected with the digital quantity signal conversion board 5, and the pulse input and output board 4 is used for being connected with a detected high-voltage energy meter.
The verification device control module 1 further comprises a user interface 2 connected with the industrial personal computer 3.
The three-phase standard power source 14 comprises a second optical transceiver and three single-phase standard power sources 6 respectively connected with the second optical transceiver;
each single-phase standard power source 6 is a unit, has the same structure and is mutually independent, and can work in a single-phase, three-phase three-wire or three-phase four-wire wiring mode, and the phase of each phase standard power source is locked through the industrial personal computer 3.
Specifically, the single-phase standard power source 6 comprises a low-voltage signal source 8, a standard meter 7, a power amplifier 10, a booster 12, a voltage transformer 13, a current booster 11 and a current transformer 9; the standard table 7 is connected with the second optical transceiver; the current output end of the standard meter 7 is connected with a standard current source in the low-voltage signal source 8, the voltage output end of the standard meter 7 is connected with a standard voltage source in the low-voltage signal source 8, the standard current source is connected with a booster 11 through a power amplifier 10, and the standard voltage source is connected with a booster 12 through the power amplifier 10; the output end of the current booster 11 is used for outputting standard current to the detected high-voltage electric energy meter and is connected with the current feedback end of the standard meter 7; the output end of the booster 12 is used for outputting standard voltage to the detected high-voltage energy meter and is connected with the voltage feedback end of the standard meter 7.
The first optical transceiver is connected with the second optical transceiver through optical fibers.
The single-phase standard power source 6 further comprises a case, and the low-voltage signal source 8, the standard meter 7, the power amplifier 10, the booster 12, the voltage transformer 13, the current booster 11 and the current transformer 9 are arranged in the case, so that the single-phase standard power source is integrated, and the precision of the single-phase standard power source can be traced integrally. Universal wheels are mounted at the bottom of the case, so that the movement in the later detection process is facilitated.
The single-phase standard power source 6 further comprises a temperature sensor connected to the standard meter 7 for detecting the ambient temperature.
The industrial personal computer 3 in the calibrating device control module 1 is a control core of the calibrating device, controls the output of a standard power source, performs error data processing and generates a report. The user interface 2 can intuitively display various measurement data and waveforms, provide a humanized interaction control window and realize operations such as parameter setting, starting and stopping of the low-voltage signal source 8, starting and stopping of the verification process, and the like. The pulse input/output board 4 and the digital quantity signal conversion board 5 are inserted into a PCI card slot of the industrial personal computer 3 and are used for receiving high-frequency or low-frequency pulses output by the detected equipment and transmitting the high-frequency and low-frequency pulses. The digital quantity signal conversion board 5 sends the setting command packet sent by the industrial personal computer 3 to the standard power source through the optical terminal machine, controls the start and stop of the power source, and simultaneously analyzes the data sent by the standard power source into digital quantity signals which are sent to the industrial personal computer 3 through the optical terminal machine.
The industrial personal computer 3 measures and locks the phase between the standard current source and the standard voltage source.
The standard voltage output process is as follows: the standard voltage source of the low-voltage signal source 8 outputs a small signal, a power amplifier 10 and a booster 12 output high voltage, meanwhile, the output high-voltage signal is converted into a small signal through a voltage transformer 13 and fed back to the standard table 7, and the standard table 7 dynamically adjusts the output of the low-voltage signal source 8 through a PID algorithm so as to ensure the output precision of the standard voltage;
the standard current output process is as follows: the standard current source of the low-voltage signal source 8 outputs a small signal, a large current is output through the power amplifier 10 and the current booster 11, meanwhile, the output large current signal is converted into a small signal through the current transformer 9 and fed back to the standard table 7, and the standard table 7 dynamically adjusts the output of the low-voltage signal source 8 through a PID algorithm so as to ensure the output precision of the standard current.
As shown in fig. 2, the verification process is as follows, and the verification device control module 1 controls the three-phase standard power source 14 to output standard voltage and current point by point according to a user-defined meter checking scheme. The detected high-voltage energy meter outputs high-frequency pulses under the set output excitation of the three-phase standard power source 14. The pulse input/output board 4 collects the high-frequency pulse output by the detected high-voltage electric energy meter through a wireless receiving module, and sends the high-frequency pulse into the industrial personal computer 3, the industrial personal computer 3 compares the pulse with the standard pulse output by the standard power source, and calculates to obtain the integral error of the high-voltage electric energy meter, wherein the error is the percentage value obtained by dividing the difference between the pulse of the detected high-voltage electric energy meter and the standard power source pulse by the standard power source pulse.
As shown in fig. 1 and 2, the assay is performed based on the assay device described above, as follows:
1) Connecting a qualified high-voltage energy meter to a standard power source of the calibrating device;
2) Placing a second optical transceiver, a qualified high-voltage energy meter and a standard power source connected with the qualified high-voltage energy meter into a temperature control chamber;
3) Setting electric energy meter detection parameters on the industrial personal computer 3, setting a temperature sequence, setting the temperature of the temperature control chamber according to the first temperature value in the temperature sequence, and waiting for the temperature of the temperature control chamber to be stable; preferably, the temperature sequence is constructed from-50 ℃ to 50 ℃ at 10 ℃ intervals;
4) Starting an electric energy meter verification program on an industrial personal computer 3, outputting a control command by a digital quantity signal conversion board 5, sending the control command to three single-phase standard power sources 6 through a first optical terminal machine and a second optical terminal machine, and sending voltage and current output values of the standard power sources and detection data of a temperature sensor to the industrial personal computer 3 through a standard meter 7 of the single-phase standard power sources 6 connected with a qualified high-voltage electric energy meter by the second optical terminal machine, the first optical terminal machine and the digital quantity signal conversion board 5;
5) The pulse input/output board 4 collects the data output by the qualified high-voltage energy meter to be detected and sends the data to the industrial personal computer 3 through the communication interface, and the industrial personal computer 3 compares the data output by the qualified high-voltage energy meter to be detected with the data sent by the standard power source and calculates to obtain the error of the high-voltage energy meter;
6) Setting the temperature of the temperature control chamber according to the temperature value of the temperature sequence in sequence, and repeatedly executing the step 4) and the step 5) after waiting for the temperature stabilization of the temperature control chamber each time;
7) Calculating the ratio of the electric energy meter errors at different temperatures to the electric energy meter errors obtained at 20 ℃): c (C) T =R T /R 20 The method comprises the steps of carrying out a first treatment on the surface of the Wherein R is T For the error of the electric energy meter at the temperature T, R 20 The error of the electric energy meter at 20 ℃;
8) Detecting another high-voltage electric energy meter to be detected outside a temperature control chamber by using a calibrating device, starting an electric energy meter calibrating program on an industrial personal computer 3, outputting a control command by a digital quantity signal conversion board 5, transmitting the control command to three single-phase standard power sources 6 through a first optical terminal machine and a second optical terminal machine, and transmitting detection data of a standard meter 7 and detection data of a temperature sensor to the industrial personal computer 3 through the second optical terminal machine, the first optical terminal machine and the digital quantity signal conversion board 5 by the three single-phase standard power sources 6;
the pulse input/output board 4 collects the data output by the high-voltage electric energy meter to be detected, and then sends the data to the industrial personal computer 3 through the communication interface, and the industrial personal computer 3 compares the data with the standard data output by the standard power source to obtain the temperature T of the high-voltage electric energy meter to be detected Real world Error R of Real world ；
9) Converting the error of the detected high-voltage electric energy meter at 20 ℃):
R=R real world /C Real world The method comprises the steps of carrying out a first treatment on the surface of the C in the formula Real world For the temperature sequence and T Real world The error ratio corresponding to the closest temperature value.
Claims (5)
1. High-voltage electric energy calibrating device that can wholly trace to source, its characterized in that: comprises a verification device control module (1) and a three-phase standard power source (14);
the calibrating device control module (1) comprises an industrial personal computer (3), a pulse input/output board (4), a digital quantity signal conversion board (5) and a first optical transceiver; the pulse input and output board (4) and the digital quantity signal conversion board (5) are respectively connected with the industrial personal computer (3), the first optical transceiver is connected with the digital quantity signal conversion board (5), and the pulse input and output board (4) is used for being connected with a detected high-voltage electric energy meter;
the three-phase standard power source (14) comprises a second optical transceiver and three single-phase standard power sources (6) which are respectively connected with the second optical transceiver;
the single-phase standard power source (6) comprises a low-voltage signal source (8), a standard meter (7), a power amplifier (10), a booster (12), a voltage transformer (13), a current booster (11) and a current transformer (9); the standard table (7) is connected with the second optical transceiver; the current output end of the standard meter (7) is connected with a standard current source in the low-voltage signal source (8), the voltage output end of the standard meter (7) is connected with a standard voltage source in the low-voltage signal source (8), the standard current source is connected with a booster (11) through a power amplifier (10), and the standard voltage source is connected with the booster (12) through the power amplifier (10); the output end of the current booster (11) is used for outputting standard current to the detected high-voltage energy meter and is connected with the current feedback end of the standard meter (7); the output end of the booster (12) is used for outputting standard voltage to the detected high-voltage energy meter and is connected with the voltage feedback end of the standard meter (7);
the first optical transceiver is connected with the second optical transceiver;
the single-phase standard power source (6) further comprises a temperature sensor, and the temperature sensor is connected with the standard meter (7);
the single-phase standard power source (6) further comprises a case, the low-voltage signal source (8), the standard meter (7), the power amplifier (10), the booster (12), the voltage transformer (13), the current booster (11) and the current transformer (9) are placed in the case, and universal wheels are installed at the bottom of the case;
the verification process comprises the following steps:
1) Connecting a qualified high-voltage energy meter to a standard power source of the calibrating device;
2) Placing a second optical transceiver, a qualified high-voltage energy meter and a standard power source connected with the qualified high-voltage energy meter into a temperature control chamber;
3) Setting electric energy meter detection parameters on an industrial personal computer (3), setting a temperature sequence, setting the temperature of a temperature control chamber according to a first temperature value in the temperature sequence, and waiting for the temperature of the temperature control chamber to be stable;
4) Starting an electric energy meter verification program on an industrial personal computer (3), sending a control command to a standard power source, and sending a voltage and current output value of the standard power source and detection data of a temperature sensor to the industrial personal computer (3) by a standard meter (7) of a single-phase standard power source (6) connected with a qualified high-voltage electric energy meter;
5) The pulse input/output board (4) collects data output by the qualified high-voltage energy meter to be detected and sends the data to the industrial personal computer (3), and the industrial personal computer (3) compares the data output by the qualified high-voltage energy meter to be detected with data sent by a standard power source and calculates to obtain a high-voltage energy meter error;
6) Setting the temperature of the temperature control chamber according to the temperature value of the temperature sequence in sequence, and repeatedly executing the step 4) and the step 5) after waiting for the temperature stabilization of the temperature control chamber each time;
7) Calculating the ratio of the electric energy meter errors at different temperatures to the electric energy meter errors obtained at 20 ℃): ct=rt/R20; wherein RT is the error of the electric energy meter at the temperature T, and R20 is the error of the electric energy meter at the temperature of 20 ℃;
8) Detecting another high-voltage electric energy meter to be detected outside the temperature control chamber by using a verification device to obtain an error Rreal of the detected high-voltage electric energy meter at the temperature Treal;
9) Converting the error of the detected high-voltage electric energy meter at 20 ℃):
r=r real/C real; wherein Creal is the error ratio corresponding to the temperature value closest to Treal in the temperature sequence.
2. The high voltage electrical energy verification device capable of integrally tracing a source as claimed in claim 1, wherein: the verification device control module (1) further comprises a user interface (2) connected with the industrial personal computer (3).
3. The high voltage electrical energy verification device capable of integrally tracing a source as claimed in claim 1, wherein: the digital quantity signal conversion board (5) transmits a command sent by the industrial personal computer (3) to the standard power source through the optical terminal machine so as to realize control of the standard power source, and meanwhile, data transmitted by the standard power source are analyzed into digital quantity signals and are transmitted to the industrial personal computer (3).
4. The high voltage electrical energy verification device capable of integrally tracing a source as claimed in claim 1, wherein: the industrial personal computer (3) measures and locks the phase between the standard current source and the standard voltage source;
the standard voltage output process is as follows: the standard voltage source of the low-voltage signal source (8) outputs a small signal, the power amplifier (10) and the booster (12) output high voltage, the output high-voltage signal is converted into a small signal through the voltage transformer (13) and fed back to the standard meter (7), and the standard meter (7) dynamically adjusts the output of the low-voltage signal source (8) through a PID algorithm so as to ensure the output precision of the standard voltage;
the standard current output process is as follows: the standard current source of the low-voltage signal source (8) outputs a small signal, a power amplifier (10) and a current booster (11) output a large current, the output large current signal is converted into a small signal through a current transformer (9) and fed back to the standard meter (7), and the standard meter (7) dynamically adjusts the output of the low-voltage signal source (8) through a PID algorithm so as to ensure the output precision of the standard current.
5. The high voltage electrical energy verification device capable of integrally tracing a source as claimed in claim 1, wherein: the pulse input/output board (4) collects the pulse output by the detected high-voltage energy meter, then sends the pulse to the industrial personal computer (3), and the industrial personal computer (3) compares the pulse with the standard pulse output by the standard power source to calculate and obtain the error of the detected high-voltage energy meter.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062651A (en) * | 2009-11-18 | 2011-05-18 | 杨明忠 | Dynamic detection method for temperature of heat meter |
| CN102903223A (en) * | 2012-08-09 | 2013-01-30 | 中国电力科学研究院 | High-speed transmission system of extra-high voltage wide band domain corona current signal |
| CN103389484A (en) * | 2013-07-17 | 2013-11-13 | 国家电网公司 | Electric energy meter verification system |
| CN203673061U (en) * | 2013-12-31 | 2014-06-25 | 国家电网公司 | Onsite detecting system for electric energy meter |
| CN105607027A (en) * | 2015-12-17 | 2016-05-25 | 郑州三晖电气股份有限公司 | High-low temperature weather effect testing device for electric energy meter |
| CN107748348A (en) * | 2017-11-30 | 2018-03-02 | 国网安徽省电力公司淮南供电公司 | The high-voltage electric energy meter calibrating installation that can integrally trace to the source |
-
2018
- 2018-10-23 CN CN201811233970.0A patent/CN109116291B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062651A (en) * | 2009-11-18 | 2011-05-18 | 杨明忠 | Dynamic detection method for temperature of heat meter |
| CN102903223A (en) * | 2012-08-09 | 2013-01-30 | 中国电力科学研究院 | High-speed transmission system of extra-high voltage wide band domain corona current signal |
| CN103389484A (en) * | 2013-07-17 | 2013-11-13 | 国家电网公司 | Electric energy meter verification system |
| CN203673061U (en) * | 2013-12-31 | 2014-06-25 | 国家电网公司 | Onsite detecting system for electric energy meter |
| CN105607027A (en) * | 2015-12-17 | 2016-05-25 | 郑州三晖电气股份有限公司 | High-low temperature weather effect testing device for electric energy meter |
| CN107748348A (en) * | 2017-11-30 | 2018-03-02 | 国网安徽省电力公司淮南供电公司 | The high-voltage electric energy meter calibrating installation that can integrally trace to the source |
Non-Patent Citations (1)
| Title |
|---|
| 保证标准电能表(0.02级)技术指标的有效措施;孟耕;张浩;;电测与仪表;43(第09期);43-45 * |
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