摘要
Abstract
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Key words
smart gird/electronic current transformer ( ECT)/temperature characteristic/test method/test require-ment分类
信息技术与安全科学
