电气设备剩余电压测试仪校准方法

冯建; 胡俊杰; 许峰; 周碧红

doi:10.3969/j.issn.1000-1158.2024.05.03

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计量学报 ›› 2024, Vol. 45 ›› Issue (5) : 626-630. DOI: 10.3969/j.issn.1000-1158.2024.05.03

电磁学计量

电气设备剩余电压测试仪校准方法

冯建,胡俊杰,许峰,周碧红

作者信息 +

Calibration Method of Residual Voltage Tester for Electrical Equipment

FENG Jian,HU Junjie,XU Feng,ZHOU Bihong

Author information +

文章历史 +

摘要

分析了电气设备剩余电压测试仪基本原理,提出一种基于标准阻容网络法对剩余电压测试仪剩余电压幅值和延迟时间参数进行校准的方法。结合交流标准电阻器和电容器等效模型,分析了标准电阻时间常数和标准电容损耗因数对校准结果的影响,推导了校准时剩余电压和延迟时间标准值的计算方法。采用1MΩ交流标准电阻和1μF标准电容器组成的电路网络对剩余电压测试仪进行了校准,结果表明标准阻容网络法可满足该仪器的校准。对测量结果进行了不确定度分析,剩余电压幅值测量不确定度为1.1%,延迟时间测量不确定度为1.2%,主要不确定度分量为标准电容器损耗因数的影响。

Abstract

The principle of the residual voltage tester for electric equipment is analyzed. A method for calibrating the residual voltage amplitude and delay time parameters of the tester based on the standard resistance-capacitance network method is proposed. The influences of the time constant of the standard resistor and the loss factor of the standard capacitor on the calibration results are analyzed based on the equivalent model of the impedance components. The calculation method of the reference value of residual voltage and delay time is derived for the calibration. The residual voltage tester is calibrated by using a circuit network composed of a 1MΩ AC standard resistor and a 1μF standard capacitor and the results show that the mentioned method meets the calibration for the tester. The uncertainty analysis of the measurement results is carried out. The expanded uncertainty for the residual voltage amplitude is 1.1% and 1.2% for the delay time. The main uncertainty component is the measurement uncertainty of the loss factor of the standard capacitor.

导出引用

冯建,胡俊杰,许峰,周碧红. 电气设备剩余电压测试仪校准方法[J]. 计量学报. 2024, 45(5): 626-630 https://doi.org/10.3969/j.issn.1000-1158.2024.05.03

FENG Jian,HU Junjie,XU Feng,ZHOU Bihong. Calibration Method of Residual Voltage Tester for Electrical Equipment[J]. Acta Metrologica Sinica. 2024, 45(5): 626-630 https://doi.org/10.3969/j.issn.1000-1158.2024.05.03

中图分类号： TB971

参考文献

［1］李雨明. 剩余电压测试［J］. 中国测试技术, 2008, 34(1): 40-42.
LI Y M. Residual voltage measurement［J］. China Measurement Technology, 2008, 34(1): 40-42.
［2］何敏, 涂荣, 吴少海. 医用电气设备中剩余电压测试的探讨［J］. 临床医学工程, 2012, 19(8): 1239-1240
HE M, TU R, WU S H. A discussion about the test method of residual voltage in medical device［J］. China Medicine and Engineering, 2012, 19(8): 1239-1240.
［3］张学龙, 赖玲波, 曹俐, 等. 剩余电压测试的标准研究［J］. 标准科学, 2010(8): 37-41
ZHANG X L, LAI L B, CAO L, et al, Study on standards of term on the residual voltage［J］. Standard Science, 2010(8): 37-41.
［4］蒋秋桃, 曹俐. 剩余电压条款及测试方法的探讨［J］. 中国医疗器械杂志, 2010, 34(3): 215-217.
JIANG Q T, CAO L. Residual voltage of terms and test method［J］. Chinese journal of medical instrumentation. 2010, 34(3): 215-217.
［5］测量、控制和实验室用电气设备的安全要求第1部分: 通用要求:GB 4793.1-2007［S］.北京: 中国标准出版社, 2007.
［6］医用电气设备第1部分: 基本安全和基本性能的通用要求:GB 9706.1-2020［S］.北京: 中国标准出版社, 2020.
［7］家用和类似用途电器的安全:GB 4706.1-2005［S］.北京: 中国标准出版社, 2005.
［8］王勇, 陈章进, 江超, 等. 基于FPGA的剩余电压检测系统的设计［J］. 电子技术应用, 2013, 39(3): 80-83.
WANG Y, CHEN Z J, JIANG C, et al, Design of detection system for residual voltage based on FPGA［J］. Measurement Control Technology and Instruments, 2013, 39(3): 80-83.
［9］曹俐. 剩余电压测试方法及其自动测量仪器的关键技术研究［D］. 长沙:中南大学, 2013.
［10］冯建, 来磊, 石雷兵, 等. 交流电阻及其时间常数的准平衡式电桥精密测量技术［J］. 电工技术学报, 2017, 32(19): 187-192.
FENG J, LAI L, SHI L B, et al. Precision measurement of AC resistance and time constant based on quasi-baance resistance bridge［J］. Transactions of China Electrotechnical Society,2017, 32(19): 187-192.
［11］黄璐, 张钟华, 赵伟, 等. 精密宽频开尔文电桥的研制［J］. 计量学报, 2008, 29(2): 97-101.
HUANG L, ZHANG Z H, ZHAO W, et al. Development of a wide-range AC Kelvin bridge［J］. Acta Metrologica Sinica, 2008, 29(2): 97-101.
［12］戴冬雪, 阮永顺, 王祁. 四端对标准电容器频率特性的校验理论及测定方法［J］. 计量学报, 2005, 26(3): 263-266.
DAI D X, RUAN Y S, WANG Q. Calibration theory and measurement of the frequency characteristics of the four-pair terminal standard capacitor［J］. Acta Metrologica Sinica, 2005, 26(3): 263-266.
［13］郭松林, 赵金宪. 基于矢量乘法器的最优滤波电力设备介质损耗角的实时测量方法［J］. 计量学报, 2009, 30(1): 84-87.
GUO G L, ZHAO J X. The real-time measuring method on dielectric loss angle of electrical capacitive equipment［J］. Acta Metrologica Sinica, 2009, 30(1): 84-87.
［14］贾多, 吕金华, 蔡晋辉. 绝缘油介质损耗与体积电阻率测试仪空杯电容值的计算［J］. 计量学报, 2023, 44(2): 246-251.
JIA D, L J H, CAI J H. Calculation of Test Cell Capacitance of Insulating Oils Dielectric Dissipation and Resistivity Tester［J］. Acta Metrologica Sinica, 2023, 44(2): 246-251.
［15］陈炜峰, 蒋全兴. 电阻分压器性能与高压纳秒双指数脉冲的测量［J］. 东南大学学报: 自然科学版, 2006, 36(3): 374-379.
CHEN W F, JIANG Q X. Performance of resistance divider and measurement of high-voltage nanosecond double exponential pulse［J］. Journal of Southeast University (Natural Science Edition), 2006, 36(3): 374-379.
［16］胡晓倩, 杨菁, 张莲, 等. 电阻分压器的集中参数电路模型及分析［J］. 重庆理工大学学报(自然科学), 2008, 22(7): 96-98.
HU X Q, YANG J, ZHANG L. A lumped-parameter circuit model of resistive divider and its analysis［J］. Journal of Chongqing Institute of Technology (Natural Science), 2008, 22(7): 96-98.