电子式互感器性能检测及问题分析

Quality Test and Problem Analysis of Electronic Transformer

电子式互感器在中国的试点运行过程中的可靠性和稳定性较差,故障率较高。为促进电子式互感器关键技术的研究,提高电子式互感器运行的可靠性、稳定性和精确度,进一步完善技术标准,对41台不同结构原理的电子式互感器进行了性能检测。检测内容包括国家标准要求的部分例行试验、型式试验和特殊试验,并依据标准在稳定性、可靠性和抗电磁干扰性能等方面提出了高于现行国家标准的要求。结果表明:检测结果中的主要故障类型与实际运行故障基本一致;部分电子式互感器的性能有待进一步提高;电子式互感器产品质量与供应商的研发能力、质量控制能力基本一致。

In accordance with the lack of reliability and stability and a high failure rate of electronic transformers,we tested 41different kinds of electronic transformers in order to promote key technology of electronic transformers and to improve their reliability,stability,accuracy,and related technical standard.The test content includes parts of routine tests,type tests and special tests mentioned in national standard,and higher demands of reliability,stability and anti-electromagnetic interference than the present national standard are introduced.The conclusions can be drawn from the test results：the fault types of tests are basically identical with actual operational failures;the performance of some products should be further improved;aproduct＇s quantity is basically identical with the research ability and quality control ability of its provider.