0.02级220kV标准电压互感器自校准方法应用研究  

Application Research of Self-calibration Method for Class 0.02220 kV Standard Voltage Transformer

作　　者：刘罡 姜春阳[2] LIU Gang;JIANG Chunyang(Electric Power Research Institute of State Grid Liaoning Electric Power Co.,Ltd.,Shenyang 110006,China;China Electric Power Research Institute,Wuhan 430074,China)

机构地区：[1]国网辽宁省电力有限公司电力科学研究院,辽宁沈阳110006 [2]中国电力科学研究院,湖北武汉430074

出　　处：《山东电力技术》2020年第3期25-28,34,共5页Shandong Electric Power

基　　金：国家电网公司科技项目“智能配电网一二次融合传感器及其校验技术研究”(JL71-18-018)。

摘　　要：为避免长途运输造成220 kV标准电压互感器的量值误差过大,采用低端标准器测量、高端串联加法推算方式完成标准器的自校准。从测量重复性、上级标准器、互感器校验仪3方面进行不确定度评定,计算合成标准不确定度和扩展不确定度,并进行测量试验,试验结果满足相关要求,为下一级标准器的自校准奠定了基础。In order to avoid potential error of measurement value of 220 kV standard voltage transformer caused by long-distance transportation,the self-calibration of the standard instrument is completed by measuring the low-end standard instrument and calculating the high-end series addition.Uncertainty evaluation was carried out from measurement repeatability,superior standard and transformer calibrator,synthetic standard uncertainty and extended uncertainty were calculated,and measurement test was carried out.The test results met relevant requirements,laying a foundation for self-calibration of the next standard.

关 键 词：标准电压互感器 误差测量 自校准 串联加法 不确定度评定 

分 类 号：TM93[电气工程—电力电子与电力传动]