[1]李鹏程,徐宏伟,丛中笑,等.电容元件温度特性、老化和受潮对CVT计量精度的影响研究[J].电力电容器与无功补偿,2020,41(5):88-94.[doi:10.14044/j.1674-1757.pcrpc.2020.05.015]
 LI Pengcheng,XU Hongwei,CONG Zhongxiao,et al.Study on Influence of Temperature Characteristics,Aging and Moisture of Capacitor Element on CVT Metering Accuracy[J].Power Capacitors & Reactive Power Compensation,2020,41(5):88-94.[doi:10.14044/j.1674-1757.pcrpc.2020.05.015]
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电容元件温度特性、老化和受潮对CVT计量精度的影响研究()
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《电力电容器与无功补偿》[ISSN:1674-1757/CN:61-1468/TM]

卷:
41卷
期数:
2020年第5期
页码:
88-94
栏目:
电容式电压互感器
出版日期:
2020-10-30

文章信息/Info

Title:
Study on Influence of Temperature Characteristics,Aging and Moisture of Capacitor Element on CVT Metering Accuracy
作者:
李鹏程1徐宏伟1丛中笑1贺鹏2陈翔翔2
1. 贵州电网有限公司计量中心,贵阳550000; 2. 重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044
Author(s):
LI Pengcheng1XU Hongwei1CONG Zhongxiao1HE Peng2CHEN Xiangxiang2
1. Guizhou Electric Power Corporation Metering Center,Guiyang 550000,China; 2. State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University,Chongqing 400044,China
关键词:
电容式电压互感器温度特性受潮老化计量精度
Keywords:
capacitor voltage transformertemperature characteristicmoistureagingmeteringaccuracy
DOI:
10.14044/j.1674-1757.pcrpc.2020.05.015
文献标志码:
A
摘要:
电容式电压互感器(capacitor voltage transformer,CVT)的电容元件等值参数在设备运行过 程中会受到环境温度、绝缘受潮和老化等因素的影响而发生改变,从而造成CVT 计量误差。文中 搭建电容元件试验平台和CVT 仿真平台以研究环境温度、绝缘受潮和老化对电容元件等值电气参 数和CVT 计量精度的影响规律。仿真和试验结果表明,温度升高、受潮与老化程度的增大均导致 CVT 电容元件的电容值减小,工频介质损耗角正切值增大;且CVT 比差和角差均随着温度升高、受 潮和老化程度的增加而正向增大。
Abstract:
The equivalent parameter of capacitor element of CVT will be changes the operation of equip? ment due to the influence of such factors as ambient temperature,insulation moisture and aging etc,result? ing in metering error of CVT. In this paper,a capacitor element test platform and a CVT simulation platform are built to study the influence rule of ambient temperature,insulation moisture and aging on the equivalent electrical parameter of the capacitor element and the metering accuracy of CVT. It is shown by the simula? tion and test results show that rise of temperature and increase of moisture and aging lead to the decrease of the capacitance and increase of dielectric loss of capacitor element of VCT. Moreover,both ratio and angular error of the CVT increase with the temperature as well as the increase extent of moisture and aging .

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备注/Memo

备注/Memo:
收稿日期:2020?02?20
作者简介: 李鹏程(1975—),男,高级工程师,主要从事电能计量技 术研究工作。 徐宏伟(1985—),男,高级工程师,主要从事电能计量技 术研究工作。 丛中笑(1990—),男,工程师,主要从事电力系统运行与 控制、电能计量技术研究工作。 贺鹏(1996—),男,硕士研究生,主要研究方向为电气设 备绝缘在线监测及故障诊断技术。 陈翔翔(1996—),女,硕士研究生,主要研究方向为电气 设备绝缘在线监测及故障诊断技术。
更新日期/Last Update: 2020-10-30