摘  要：电流互感器在电力系统中应用较广，仅针对应用于电能计量中的电流互感器的检定校准过程进行分析。在明确与此相关的名词述语的基础上，分析检定电流互感器的原理方法，建立了测量电流互感器比值误差和相位误差的数学模型。以0.2S级电流互感器作为例子，对额定电流的1%、5%、20%、100%、120%下数据进行分析，得出了对应的不确定度。   关键词：电流互感器；比值误差；相位误差；数学模型；测量不确定度   中图分类号：TB971   文献标识码：A  文章编号：1672-4984（2007）04-0020-06   Analysis for current transformers standard TANG Guo-ming， QIN Fu-xiang， LIU Chong-gao （National Institute of Measurement and Testing Technology，Chengdu 610021，China）   Abstract: Current transformers are widely used in electric system. In this passage, the authors only analyzed the verification and check procedure of current transformers, which were used in measurement of electricity. On the basis of having defined the related technical terms, they analyzed the method of checking to current transformers and established the mathematical model to measuring the ratio error & phase displacement of current transformers. Take the class 0.2S of current transformers for example, they analyzed the data under rated current 1%、5%、20%、100%、120%，then completed the corresponding measurement uncertainty evaluation.   Key words: Current transformers; Ratio error; Phase displacement; Mathematical model; Measurement uncertainty