亚洲视频一区二区三区_国产在线拍偷自揄拍精品_日韩av在线看_日本久久久久久久久久久_精品国产区一区二区三区在线观看_国产日产欧美a一级在线_日韩亚洲在线观看_日韩久久精品电影_久久综合电影一区_2021国产精品视频_国产精品小说在线_欧美—级高清免费播放_一区二区三区高清国产_91av视频在线免费观看_一二美女精品欧洲_成人网在线免费看

摘  要：電流互感器在電力系統中應用較廣，僅針對應用于電能計量中的電流互感器的檢定校準過程進行分析。在明確與此相關的名詞述語的基礎上，分析檢定電流互感器的原理方法，建立了測量電流互感器比值誤差和相位誤差的數學模型。以0.2S級電流互感器作為例子，對額定電流的1%、5%、20%、100%、120%下數據進行分析，得出了對應的不確定度。   關鍵詞：電流互感器；比值誤差；相位誤差；數學模型；測量不確定度   中圖分類號：TB971   文獻標識碼：A  文章編號：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