光学电流互感器二次部分温度特性及其改善  

Study on temperature performance and improvement method of secondary part of optical current transformer

作　　者：李红斌[1] 汪本进[1] 刘延冰[1] 

机构地区：[1]华中科技大学电气与电子工程学院,武汉430074

出　　处：《电测与仪表》2004年第1期13-16,共4页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(批准号:50377011)

摘　　要：对光学电流互感器(OCT)二次部分受温度影响的原因进行了理论分析,并根据IEC60044-8ElectronicCurrentTransformer的要求,进行了相关的温度实验,发现二次部分在-5℃～+40℃的温度范围内时将使OCT产生高达±1.7%的测量误差。基于此提出了改善温度性能的方法。实验结果表明该方法能提高OCT测量准确度和稳定性,使得二次部分在同样的温度范围内时,OCT能满足0.2级准确度的要求。The temperature performance of secondary part of optical current transformer is analyzed.The related temperature experiment is done according to the request of IEC60044-8Electronic Current Transformer,which shows that OCT ratio errors reach±1.7%when the secondary part is at-5℃～+40℃temperature range,so the method for reducing temperature influence is proposed.The experiment results has proven that the method can improve the accuracy and stability of OCT and OCT can satisfy0.2class request when the secondary part is at the same temperature range.

关 键 词：电子式电流互感器 光学电流互感器 二次部分 温度 OCT 

分 类 号：TM452.93[电气工程—电器]