交流电压电流指示仪表电压测量结果的不确定度评定  

Evaluation of Uncertainty in Voltage Measurement Results of AC Voltage and Current Indicating Instruments

作　　者：周超 Zhou Chao(State Power Investment Group GCL Binhai Power Generation Co.,Ltd,Yancheng Jiangsu 224500)

机构地区：[1]国家电投集团协鑫滨海发电有限公司,江苏盐城224500

出　　处：《中国仪器仪表》2023年第11期67-70,共4页China Instrumentation

摘　　要：本文按照JJG124-2005《电流表、电压表、功率表及电阻表检定规程》和JJF1059.1《测量不确定度评定与表示》的要求,使用七位半标准数字电压表,对交流电压电流指示仪表电压测量结果进行误差分析,通过计算得到A类不确定度,用分析统计的方法得到B类不确定度,从而生成合成不确定度,对电压测量的结果进行了扩展不确定度的分析与评定。In accordance with the requirements of JJG124-2005"Verification Regulations for Ammeters,Voltmeters,Power Meters,and Resistance Meters"and JJF1059.1"Evaluation and Representation of Measurement Uncertainty",this article uses a seven and a half digit standard digital voltmeter to analyze the error of the voltage measurement results of AC voltage and current indicating instruments.Class A uncertainty is obtained through calculation,and Class B uncertainty is obtained through analysis and statistics,thereby generating a composite uncertainty,Expanded uncertainty analysis and evaluation were conducted on the results of voltage measurement.

关 键 词：电压测量 校准 不确定度 分析与评定 

分 类 号：TM930[电气工程—电力电子与电力传动]