WO2012159400A1 - Compteur de contrôle en ligne d'un dispositif de mesure d'énergie électrique à haute tension - Google Patents

Compteur de contrôle en ligne d'un dispositif de mesure d'énergie électrique à haute tension Download PDF

Info

Publication number
WO2012159400A1
WO2012159400A1 PCT/CN2011/080217 CN2011080217W WO2012159400A1 WO 2012159400 A1 WO2012159400 A1 WO 2012159400A1 CN 2011080217 W CN2011080217 W CN 2011080217W WO 2012159400 A1 WO2012159400 A1 WO 2012159400A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric energy
voltage
energy metering
metering device
microprocessor
Prior art date
Application number
PCT/CN2011/080217
Other languages
English (en)
Chinese (zh)
Inventor
冯凌
侯兴哲
胡晓锐
肖冀
魏麟
周华勇
张喜
Original Assignee
重庆市电力公司电力科学研究院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 重庆市电力公司电力科学研究院 filed Critical 重庆市电力公司电力科学研究院
Publication of WO2012159400A1 publication Critical patent/WO2012159400A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • 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

Definitions

  • High-voltage electric energy metering device online calibrator This application claims to be submitted to the Chinese Patent Office, application number 201110138849.1 on May 25, 2011, and the priority of the Chinese patent application entitled “High-voltage electric energy metering device online calibrator", all of which The content is incorporated herein by reference.
  • TECHNICAL FIELD The present application relates to the field of power metering device calibration technology, and more particularly to a high voltage energy metering device online calibrator.
  • the electric energy metering device is used for collecting and recording the electric parameter data used by the user, thereby obtaining the electric energy parameter of the user for a period of time, and the accuracy of the electric energy metering device directly affects the interests of both the power supply and the power supply. Therefore, periodic on-site verification of the energy metering device is required to ensure the accuracy of the energy metering device.
  • the existing online calibrator for high-voltage electric energy metering devices generally adopts a sub-testing method, that is, respectively calibrates the electric energy meter error and the transformer error inside the high-voltage electric energy metering device, and measures the voltage drop of the secondary circuit of the transformer. After each sub-item error meets the corresponding error limit requirements, the whole set of electric energy metering devices is considered qualified. However, each sub-item error only reflects the metering performance of a single metering component and does not reflect the overall metering error of the entire energy metering device. Therefore, a comprehensive error assessment must be performed for each sub-metering error.
  • the so-called integrated error refers to the synthetic error of the current transformer and the voltage transformer, the voltage drop of the voltage transformer secondary loop voltage drop and the algebraic sum of the metering error of the energy meter. Since the actual grid voltage and power load are only approximately three-phase symmetry, and the actual operating error of the current transformer and voltage transformer and the voltage drop of the secondary circuit of the voltage transformer are not fixed values, the integrated error cannot be used as an evaluation of the error of the entire energy metering device. The basis for this is only applicable to the analysis of the source of the error. In other words, no matter the sub-item verification method and the comprehensive error evaluation, the overall error of the high-voltage energy metering device cannot be scientifically and reasonably evaluated. In particular, the error verification of the transformer must be performed in the power-off state, which greatly interferes with the normal power consumption of the user.
  • the embodiment of the present application provides an online calibrator for a high-voltage electric energy metering device, so as to accurately verify the overall error of the high-voltage electric energy metering device under the condition of no power failure, and the technical scheme is as follows:
  • An online calibrator for a high-voltage electric energy metering device comprising:
  • An acquisition processing unit disposed on the high voltage side for collecting electrical parameter information on the high voltage line, and converting the electrical parameter information into a digital signal;
  • An electric energy metering unit disposed on the low voltage side and connected to the collection processing unit receives the digital signal corresponding to the electrical parameter information, and calculates a power standard value of the current loop;
  • a microprocessor disposed on the low voltage side and connected to the electric energy metering unit, the microprocessor being connected with a power pulse input interface for measuring according to the measured high voltage electric energy metering device sent by the received energy pulse input interface
  • the electric energy pulse signal of the current loop and the electric energy standard value provided by the electric energy metering unit calculate the overall error of the measured high-voltage electric energy metering device;
  • a main control unit connected to the microprocessor is configured to control an operating state of the microprocessor.
  • the above-mentioned high-voltage electric energy metering device online calibrator further comprises: a display unit connected to the microprocessor for displaying the overall error of the measured high-voltage electric energy metering device calculated by the microprocessor.
  • the collection processing unit includes:
  • a sensor module for collecting voltage values and current values in a current loop
  • An analog/digital conversion module connected to the sample and hold module converts the collected voltage value and current value into digital signals respectively;
  • optical transmission module connected to the analog/digital conversion module, configured to convert the voltage and current digital signals into optical signals
  • a power module connected to the sample and hold module, the analog/digital conversion module, and the optical transmission module.
  • the main control unit includes: a control unit for controlling an operating state of the microprocessor, And a calibration unit for adjusting the self-measurement error of the online calibrator of the high-voltage energy metering device.
  • the sensor module comprises: a current sensor and a voltage sensor.
  • the electric energy metering unit is a digital signal processing DSP microprocessor.
  • the microprocessor and the main control unit form a single chip microcomputer.
  • the display unit is a liquid crystal display.
  • the collection processing unit can directly measure the electrical parameter information of the high-voltage side of the current line, for example, voltage information and current information, and convert the electrical parameter information into a digital signal for providing energy measurement.
  • the unit calculates the power standard value of the current loop and provides the power to the microprocessor, and the microprocessor calculates the measured high-voltage power according to the current circuit power standard value and the obtained current energy of the measured high-voltage energy metering device.
  • the overall error of the metering device, the main control unit is used for controlling the working state of the microprocessor.
  • the high-voltage energy metering device online calibrator realizes the accurate verification of the overall error of the high-voltage energy metering device under the condition of no power failure.
  • FIG. 1 is a schematic structural view of an on-line calibrator of a high-voltage electric energy metering device according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of an acquisition processing unit according to an embodiment of the present application.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment of the present application provides an online calibrator for a high-voltage electric energy metering device, which measures the electric parameter information of the current line through the collection processing unit disposed on the high-voltage side, and then calculates the electric energy standard of the current loop by the electric energy measuring unit.
  • the value is compared with the current circuit energy measurement value measured by the measured high-voltage energy metering device to obtain the overall error of the measured high-voltage energy metering device, thereby realizing accurate verification of the energy metering under the condition of no power failure.
  • the overall error of the device is compared with the current circuit energy measurement value measured by the measured high-voltage energy metering device to obtain the overall error of the measured high-voltage energy metering device, thereby realizing accurate verification of the energy metering under the condition of no power failure.
  • the calibrator mainly includes: an acquisition processing unit 1, an electric energy measuring unit 2, a microprocessor 3, and a main control Unit 5, where:
  • the acquisition processing unit 1 is disposed on the high voltage side of the line for collecting electrical parameter information on the high voltage line where the measured high voltage electric energy metering device is located, and converting the electrical parameter information into a digital signal, and providing The energy metering unit 2 is supplied.
  • the collection processing unit can directly sample the electrical parameter information on the high voltage line where the measured high voltage electric energy metering device is located, that is, the electric parameter information of the current loop, and obtain a digital signal after analog-to-digital conversion, and obtain digital light after electro-optic conversion.
  • the signal, the electrical parameter information mainly includes voltage information and current information of the current loop.
  • the electric energy metering unit 2 is disposed on the low-voltage line where the high-voltage electric energy metering device is measured, and is connected to the collecting and processing unit 1 for receiving the digital optical signal of the electric parameter information conveyed by the processing unit 1, and calculating the current loop Standard value of electrical energy.
  • the energy metering unit can be implemented by a DSP (Digital Signal Processing) microprocessor, and firstly, the digital light signal of the received electrical parameter information of the current loop is restored to a digital electrical signal by photoelectric conversion, that is, the current The voltage information and current information of the loop are then calculated to obtain electrical parameter information of the current loop, such as the electrical power transmitted on the line.
  • DSP Digital Signal Processing
  • the microprocessor 3 is disposed on the low voltage line where the high voltage electric energy metering device under test is located, is connected to the electric energy metering unit 2, and is connected to the electric energy pulse input interface 4.
  • the main control unit 5 is connected to the microprocessor 3 for controlling the working state of the microprocessor 3.
  • the microprocessor 3 receives the electric energy standard value of the current loop delivered by the electric energy metering unit 2, and receives the electric energy pulse signal measured by the measured high-voltage electric energy metering device through the electric energy pulse signal input interface 4, and converts the electric energy pulse signal
  • the energy measurement value of the current loop that is, the energy value of the current loop measured by the measured high-voltage energy metering device. Then, based on the received power standard value of the current loop and the energy measurement value of the current loop, the microprocessor can calculate the overall error of the measured high piezoelectric energy metering device according to the following formula (1).
  • R is the measured electrical energy of the high-voltage energy metering device under test
  • E is the measured electrical energy of the line calibrator of the high-voltage energy metering device.
  • the microprocessor 3 and the main control unit 5 form a single-chip microcomputer, and the microprocessor 3 is preferably a single-chip microcomputer.
  • the main control unit 5 includes: a control unit 51 and a calibration unit 52, wherein: the control unit 51 For adjusting the working state of the microprocessor 3, the adjusting unit 52 is configured to adjust the measurement error of the online calibrator of the high-voltage energy metering device, and improve the high-voltage energy metering The verification accuracy of the device online calibrator.
  • the calibrator of the high-voltage electric energy metering device is equivalent to the standard electric energy metering device, directly measuring the electric parameter information on the high-voltage line where the measured high-voltage electric energy metering device is located, and calculating the electric energy standard value on the line, and The measured electric energy measurement values measured by the high-voltage electric energy metering device are compared, and the overall error of the measured high-voltage electric energy measuring device is obtained, so that the high-voltage electric energy measuring device can be accurately verified under the condition of no power failure.
  • the high-voltage electric energy metering device online calibrator further includes: a display unit 6 connected to the microprocessor on the low-voltage side of the line where the high-voltage electric energy metering device is tested, for displaying the microprocessor 3 Calculate the overall error of the measured high-voltage energy metering device.
  • the display unit 6 can display the calculated overall error of the measured high-voltage electric energy metering device in real time, and the display unit can be realized by a liquid crystal display.
  • the electric energy metering unit, the micro-processor and the display unit in the online calibrator of the high-voltage electric energy metering device provided in this embodiment are all disposed on the low-voltage side. Therefore, when the calibrator is used, the personal safety of the worker is not endangered.
  • 2 is a schematic structural diagram of an acquisition processing unit according to an embodiment of the present application.
  • the collection processing unit includes: a sensor module 11, a sample and hold module 12, an analog/digital conversion module 13, a light transmission module 14, and a power supply. Module 15, where:
  • the sensor module 11 is configured to sample voltage information and current information on the high voltage line where the high voltage energy metering device is measured, and ensure the synchronization of the sampling through the sample and hold module 12.
  • the sensor module includes a current sensor and a voltage sensor, respectively, for sampling electrical parameter information such as current amplitude and voltage amplitude at each moment on the high voltage line.
  • the current sensor can be implemented by a clamp ammeter, a micropower feedthrough current transformer or a hollow coil; the voltage sensor can be implemented by a capacitor, a resistor divider, or a magneto-optical effect optical sensor.
  • the sensor module can adopt a three-phase integral type or a single-phase split type structure, and adopts a material with sufficient dielectric strength to directly connect or socket directly on the high-voltage line where the high-voltage electric energy measuring device to be tested is located without power failure.
  • An analog/digital conversion module 13 is configured to convert the sampled electrical parameter information of the current loop into a digital Signal.
  • the optical transmission module 14 is connected to the analog/digital conversion module, and the digital signal for receiving the electrical parameter information of the current loop is converted into a digital optical signal and transmitted to the energy metering unit 2 through the optical fiber.
  • the optical transmission module can be implemented by an optical sensor.
  • the power module 15 provides power for the passive modules in the collection processing unit, which can be realized by current or voltage source.
  • the power module can specifically supply power to the sample and hold module 12, the analog/digital conversion module 13, and the optical transmission module 14.
  • the pulse constant of the online calibrator of the high-voltage electric energy metering device in the present specification can be set according to the pulse constant of the high-voltage electric energy measuring device to be tested, and the current and voltage transformer of the measured high-voltage electric energy metering device should be considered during the setting. Magnification. For example: When the pulse constant of the measured high-voltage energy metering device is 3200imp/kWh, the current transformer ratio is 50A/5A, that is, the magnification is 10, and the voltage transformer ratio is 10kV/100V, that is, the magnification is 100, due to the measured The high-voltage electric energy metering device measures the secondary electric energy, and the high-voltage electric energy measuring device measures the primary electric energy by the online calibrator.
  • the pulse constant set by the calibrator is the pulse constant of the measured high-voltage electric energy measuring device divided by the current and the voltage.
  • the transformer's multiplier ie 3.2imp/kWh, ensures that the current loop's electrical energy measured by the measured high-voltage energy metering device is correctly compared to the standard electrical energy measured by the calibrator.
  • the online calibrator of the high-voltage electric energy metering device provided by the embodiment of the present application can perform online verification on the 6kV-35 kV electric energy metering device operating in the field, and can display the real-time error of the verification through the display unit.

Abstract

L'invention concerne un compteur de contrôle en ligne d'un dispositif de mesure d'énergie électrique à haute tension, comprenant : une unité de traitement d'acquisition (1) disposée sur le côté haute tension et utilisée pour acquérir des informations de paramètres électriques sur une ligne à haute tension et pour convertir les informations de paramètres électriques en un signal numérique ; une unité de mesure d'énergie électrique (2) disposée sur le côté basse tension, connectée à l'unité de traitement d'acquisition (1) et utilisée pour recevoir le signal numérique correspondant aux informations de paramètres électriques et pour calculer la valeur standard d'énergie électrique de la boucle de courant ; et un microprocesseur (3) disposé sur le côté basse tension, connecté à l'unité de mesure d'énergie électrique (2) et connecté à une interface d'entrée de signal pulsé d'énergie électrique (4). Le microprocesseur (3) reçoit le signal pulsé d'énergie électrique, mesuré par le dispositif de mesure d'énergie électrique à haute tension à l'essai, sur la boucle de courant, via l'interface d'entrée de signal pulsé d'énergie électrique (4) et la valeur standard d'énergie électrique fournie par l'unité de mesure d'énergie électrique (2) et calcule l'erreur globale du dispositif de mesure d'énergie électrique à haute tension à l'essai, si bien que l'erreur globale du dispositif de mesure d'énergie électrique est vérifiée précisément sans que l'alimentation électrique soit interrompue.
PCT/CN2011/080217 2011-05-25 2011-09-27 Compteur de contrôle en ligne d'un dispositif de mesure d'énergie électrique à haute tension WO2012159400A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201110138849 CN102162842B (zh) 2011-05-25 2011-05-25 高压电能计量装置在线校验仪
CN201110138849.1 2011-05-25

Publications (1)

Publication Number Publication Date
WO2012159400A1 true WO2012159400A1 (fr) 2012-11-29

Family

ID=44464175

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/080217 WO2012159400A1 (fr) 2011-05-25 2011-09-27 Compteur de contrôle en ligne d'un dispositif de mesure d'énergie électrique à haute tension

Country Status (2)

Country Link
CN (1) CN102162842B (fr)
WO (1) WO2012159400A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983939A (zh) * 2014-05-12 2014-08-13 江苏省计量科学研究院 基于无线传感网的电能表温升精确检测定位方法及其装置
CN104133187A (zh) * 2014-05-26 2014-11-05 国家电网公司 一种检测智能电能表的系统及其方法
CN104316825A (zh) * 2014-11-19 2015-01-28 国家电网公司 低压用户电能表接线稽核方法及系统
CN104698344A (zh) * 2015-03-31 2015-06-10 国家电网公司 客户电表低电压的自动预警处理方法
CN104991152A (zh) * 2015-06-24 2015-10-21 国家电网公司 三相三线电能计量装置错接线分析方法和装置
CN104991223A (zh) * 2015-07-27 2015-10-21 国网重庆市电力公司电力科学研究院 电能表状态评估指标选取及量化方法
CN105182271A (zh) * 2015-08-29 2015-12-23 国网河南省电力公司南阳供电公司 基于电表度示校核的现场快速反窃电工具及检测窃电方法
CN105425198A (zh) * 2015-11-16 2016-03-23 国网河南省电力公司平顶山供电公司 电能表计量异常就地自动诊断处理装置
CN105425003A (zh) * 2015-11-16 2016-03-23 国网河南省电力公司平顶山供电公司 居民电能表箱的双向信息交互方法及装置
CN105467353A (zh) * 2015-11-16 2016-04-06 国网河南省电力公司平顶山供电公司 基于电流比较的电能表计量异常就地自动诊断处理装置
CN105487039A (zh) * 2015-11-19 2016-04-13 国家电网公司 更换不损失电量的接线盒
CN106370898A (zh) * 2016-08-15 2017-02-01 国网北京市电力公司 检测窃电的方法和装置及移动终端
CN106443559A (zh) * 2016-06-29 2017-02-22 中国电力科学研究院 一种用于对高压电能表拉弧进行试验的系统和方法
CN107340491A (zh) * 2017-05-23 2017-11-10 国网山东省电力公司电力科学研究院 一种四线一库系统及自动化检定方法
CN111562542A (zh) * 2020-05-31 2020-08-21 宁夏隆基宁光仪表股份有限公司 一种电能表故障激励测试环境构建系统及方法
CN111751778A (zh) * 2020-05-20 2020-10-09 中国电力科学研究院有限公司 一种电能表现校仪可靠接入的检测系统及方法

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102162842B (zh) * 2011-05-25 2013-04-10 重庆市电力公司电力科学研究院 高压电能计量装置在线校验仪
CN102353928B (zh) * 2011-09-30 2014-07-16 广东电网公司电力科学研究院 带交流脉动的直流电能计量装置的溯源系统和方法
CN102590782B (zh) * 2012-03-05 2015-03-11 钜泉光电科技(上海)股份有限公司 电能计量芯片电压影响量自动校正方法及其装置
CN102736055B (zh) * 2012-06-15 2016-07-13 宁波三星医疗电气股份有限公司 三相智能电表计量准确度的在线检测方法
CN102928805B (zh) * 2012-10-19 2015-11-18 国电南京自动化股份有限公司 多表位数字化电能表校验仪
CN103064053A (zh) * 2012-12-14 2013-04-24 中国电力科学研究院 一种数字量输入式电能表在线校准装置
CN104062496B (zh) * 2014-07-03 2017-03-22 江苏省电力公司宿迁供电公司 一种便携移动式电量测试记录仪及其优化方法
CN106338706B (zh) * 2015-07-10 2019-09-24 侯飞 一种电能计量装置整体误差检测的方法、装置和系统
CN106338705B (zh) * 2015-07-10 2019-03-01 侯飞 一种用于三相电能计量装置的校验误差的方法和装置
CN105223536B (zh) * 2015-10-14 2018-09-28 国家电网公司 一种便携式电能表现场校验系统
CN105911505A (zh) * 2016-04-12 2016-08-31 广东工业大学 一种智能电表检测方法
CN105785313A (zh) * 2016-04-29 2016-07-20 贵州电网有限责任公司安顺供电局 一人多机模式电能计量检定一体化平台及检定方法
CN107589391B (zh) * 2017-07-27 2020-09-15 武汉国测数据技术有限公司 一种检测电能计量装置整体误差的方法、装置和系统
CN110780261B (zh) * 2019-10-31 2021-12-24 南京国电南自电网自动化有限公司 一种电量采集数据核对方法及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201425621Y (zh) * 2009-04-15 2010-03-17 武汉国测科技股份有限公司 一种高压电能计量装置的误差校验系统
CN101865986A (zh) * 2009-04-15 2010-10-20 武汉国测科技股份有限公司 一种高压电能计量装置的误差校验系统及方法
JP2010243372A (ja) * 2009-04-07 2010-10-28 Tohoku Keiki Kogyo Kk 電力量計器差測定システム
CN101957440A (zh) * 2010-08-23 2011-01-26 太原市优特奥科电子科技有限公司 数字式电能表的误差量值检定装置及误差量值传递方法
CN102162842A (zh) * 2011-05-25 2011-08-24 重庆电力科学试验研究院 高压电能计量装置在线校验仪

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3042406B2 (ja) * 1996-06-20 2000-05-15 日本電気株式会社 出力電力のデジタル表示におけるオフセット校正方法
US6043642A (en) * 1996-08-01 2000-03-28 Siemens Power Transmission & Distribution, Inc. Watt-hour meter with communication on diagnostic error detection
US6671635B1 (en) * 2001-02-23 2003-12-30 Power Measurement Ltd. Systems for improved monitoring accuracy of intelligent electronic devices
CN200965567Y (zh) * 2006-11-15 2007-10-24 江苏林洋电子有限公司 高精度自动校表电路
CN201436638U (zh) * 2009-05-27 2010-04-07 辽宁省电力有限公司鞍山供电公司 用于常规变电站的数字化电能计量装置
CN201716409U (zh) * 2010-07-15 2011-01-19 田卫华 智能电能表现场检测装置
CN201773129U (zh) * 2010-08-25 2011-03-23 浙江恒业电子有限公司 2.0级单相载波远程费控智能电能表

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010243372A (ja) * 2009-04-07 2010-10-28 Tohoku Keiki Kogyo Kk 電力量計器差測定システム
CN201425621Y (zh) * 2009-04-15 2010-03-17 武汉国测科技股份有限公司 一种高压电能计量装置的误差校验系统
CN101865986A (zh) * 2009-04-15 2010-10-20 武汉国测科技股份有限公司 一种高压电能计量装置的误差校验系统及方法
CN101957440A (zh) * 2010-08-23 2011-01-26 太原市优特奥科电子科技有限公司 数字式电能表的误差量值检定装置及误差量值传递方法
CN102162842A (zh) * 2011-05-25 2011-08-24 重庆电力科学试验研究院 高压电能计量装置在线校验仪

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEN, YINGLIN ET AL.: "Digital Watt-hour Metering System and Verification Equipment Design", ELECTRIC POWER AUTOMATION EQUIPMENT, vol. 29, no. 4, April 2009 (2009-04-01), pages 114 - 117 *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983939A (zh) * 2014-05-12 2014-08-13 江苏省计量科学研究院 基于无线传感网的电能表温升精确检测定位方法及其装置
CN104133187A (zh) * 2014-05-26 2014-11-05 国家电网公司 一种检测智能电能表的系统及其方法
CN104316825A (zh) * 2014-11-19 2015-01-28 国家电网公司 低压用户电能表接线稽核方法及系统
CN104698344A (zh) * 2015-03-31 2015-06-10 国家电网公司 客户电表低电压的自动预警处理方法
CN104991152A (zh) * 2015-06-24 2015-10-21 国家电网公司 三相三线电能计量装置错接线分析方法和装置
CN104991223A (zh) * 2015-07-27 2015-10-21 国网重庆市电力公司电力科学研究院 电能表状态评估指标选取及量化方法
CN105182271A (zh) * 2015-08-29 2015-12-23 国网河南省电力公司南阳供电公司 基于电表度示校核的现场快速反窃电工具及检测窃电方法
CN105182271B (zh) * 2015-08-29 2018-02-13 国网河南省电力公司南阳供电公司 基于电表度示校核的现场快速反窃电工具及检测窃电方法
CN105425003A (zh) * 2015-11-16 2016-03-23 国网河南省电力公司平顶山供电公司 居民电能表箱的双向信息交互方法及装置
CN105467353A (zh) * 2015-11-16 2016-04-06 国网河南省电力公司平顶山供电公司 基于电流比较的电能表计量异常就地自动诊断处理装置
CN105425198A (zh) * 2015-11-16 2016-03-23 国网河南省电力公司平顶山供电公司 电能表计量异常就地自动诊断处理装置
CN105487039A (zh) * 2015-11-19 2016-04-13 国家电网公司 更换不损失电量的接线盒
CN106443559A (zh) * 2016-06-29 2017-02-22 中国电力科学研究院 一种用于对高压电能表拉弧进行试验的系统和方法
CN106443559B (zh) * 2016-06-29 2020-04-17 中国电力科学研究院 一种用于对高压电能表拉弧进行试验的系统和方法
CN106370898A (zh) * 2016-08-15 2017-02-01 国网北京市电力公司 检测窃电的方法和装置及移动终端
CN107340491A (zh) * 2017-05-23 2017-11-10 国网山东省电力公司电力科学研究院 一种四线一库系统及自动化检定方法
CN111751778A (zh) * 2020-05-20 2020-10-09 中国电力科学研究院有限公司 一种电能表现校仪可靠接入的检测系统及方法
CN111751778B (zh) * 2020-05-20 2022-10-04 中国电力科学研究院有限公司 一种电能表现校仪可靠接入的检测系统及方法
CN111562542A (zh) * 2020-05-31 2020-08-21 宁夏隆基宁光仪表股份有限公司 一种电能表故障激励测试环境构建系统及方法

Also Published As

Publication number Publication date
CN102162842A (zh) 2011-08-24
CN102162842B (zh) 2013-04-10

Similar Documents

Publication Publication Date Title
WO2012159400A1 (fr) Compteur de contrôle en ligne d'un dispositif de mesure d'énergie électrique à haute tension
CN201444193U (zh) 用于数字化电能计量装置的综合误差检验装置
CN101281243B (zh) 等电位闭环电能表检验装置及检验方法
CN102073029B (zh) 电子式互感器测试系统的测试方法
CN101762799B (zh) 一种电压互感器在线精度检测系统
CN106771645B (zh) 电容式电压互感器介损及电容量在线监测方法及监测系统
CN105487039A (zh) 更换不损失电量的接线盒
CN201514473U (zh) 高压电能计量装置误差定位装置
CN103901384B (zh) 模拟量和数字量输出标准功率源检测装置及方法
CN102981083A (zh) 自校准电能质量监测装置
Bernieri et al. Electrical energy metering in compliance with recent european standards
CN103645457A (zh) 一种电能表现场检验装置
CN106483397B (zh) 一种高精度高带宽的电能质量检测装置和测量方法
CN104777445B (zh) 一种电子式电压互感器在线校验系统
CN202939299U (zh) 一种基于同步脉冲输出电源的电子式互感器校验装置
CN201955465U (zh) 电子式互感器测试系统
CN203572957U (zh) 现场式校表系统
CN219574355U (zh) 一种新型电能计量误差在线监测装置
CN102062819B (zh) 智能核相装置
CN104034977A (zh) 电容式电压互感器带电检测仪
WO2022252664A1 (fr) Capteur électrique sans fil, et appareil, procédé et système de mesure et de calcul de paramètre électrique
CN104345218B (zh) 三相电抗器电抗值测量系统及方法
CN110045311A (zh) 计量二次回路整体误差现场测试方法及其系统
CN203455471U (zh) 电子式电压互感器的频率特性检测系统
CN201413389Y (zh) 电流互感器带电校验仪

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11865985

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11865985

Country of ref document: EP

Kind code of ref document: A1