电子式电流互感器温度循环试验方法研究  

Research on temperature cycle test of the electronic current transformer

作　　者：黄华[1] 胡蓓[1] 冯翔翔[1] 唐鹏[1] 

机构地区：[1]中国电力科学研究院,武汉430074

出　　处：《电测与仪表》2014年第24期65-69,共5页Electrical Measurement & Instrumentation

摘　　要：电子式电流互感器是智能电网的关键设备之一,但由于其工作原理所决定,采用了大量的光电器件,易受到温度变化的影响。目前IEC标准、国家标准以及国网公司性能检测方案等提出的电子式互感器温度循环的试验方法和要求相对比较简单,不能完全满足电子式互感器在变电站现场复杂环境的使用要求。针对其试验方法和要求进行了分析研究,提出了在全温度范围内实时测量电子式互感器温度特性的试验方法和要求。对选取的电子式互感器样机进行了试验验证与结果分析,表明提出的电子式互感器试验方法和要求更能考核电子式互感器的温度特性。The electronic current transformer （ECT） is part of the key equipment in the smart gird, but due to its op-erating principles, many photoelectric devices are used, and thus it is easily influenced by temperature variation. Now, the test methods and requirements of the ECT’ temperature cycle test proposed by the IEC-standards, the Chi-nese Government standards and the Performance Test Schemes of State Gird are so simple that they cannot completely meet the demands in the complex environment of transformer substations.This paper studied and analyzed test meth-ods and requirements, and proposed the test methods and requirements to measure the ECT’ s temperature characteris-tics in real-time in the whole temperature range.Verification tests were made on the selected sample machine of the ECT, and the results showed that the test methods and requirements proposed in this paper were more useful in evalu-ating the ECT’ temperature characteristics.

关 键 词：智能电网 电子式电流互感器 温度特性 试验方法 试验要求 

分 类 号：TM936.9[电气工程—电力电子与电力传动]