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电力互感器不确定度评定
引用本文:张崇利. 电力互感器不确定度评定[J]. 吉林电力, 2010, 38(6): 24-27
作者姓名:张崇利
作者单位:长春供电公司,长春130021
摘    要:根据JJG 1021—2007《电力互感器》、JJF 1059—1999《测量不确定度评定与表示》、JJF 1069—2007《法定计量检定机构考核规范》、JJF 1033—2008《计量标准考核规范》等标准及规范制定了电力互感器比值差、相位差测量不确定度的评定方法,在其B类评定时,除考虑标准电流、电压互感器引入的不确定度分量外,还应考虑环境电磁干扰、误差测量装置以及二次负荷误差引入的不确定度分量。

关 键 词:不确定度  电力互感器  评定

Uncertainty Evaluation for Instrument Transformer in Power System
ZHANG Chong-li. Uncertainty Evaluation for Instrument Transformer in Power System[J]. Jilin Electric Power, 2010, 38(6): 24-27
Authors:ZHANG Chong-li
Affiliation:ZHANG Chong-li
Abstract:According to the national standards and rules of JJG 1021-2007 Instrument Transformers in Power System,JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement Standard,JJF 1069-2007 Rules for the Examination of the Service of Legal Metrological Verification,JJF 1033-2008 Rule for Examination of Measurement standard,the uncertainty evaluation methods of ratio error and phase error for instrument transformers in power system are worked out.When type B uncertainty is evaluated,it should take account of uncertainty component from electromagnetic interference of environment,error measurement unit and error of secondary load besides uncertainty component from standard current and voltage transformer.
Keywords:uncertainty  instrument transformer in power system  evaluation
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