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电子式互感器作为过程层中的关键设备,如何选型成为数字化变电站建设中面临的重要问题。针对此问题,对电子式互感器生产厂家及已投运的数字化变电站进行调查研究,总结了电子式互感器的研发现状。从实现原理、可靠性和经济性等方面对进入实用化阶段的几种电子式互感器进行比较分析,提出电子式互感器选型的参考方案及其在主变间隔中的配置方式,并对工程中出现的具体问题予以说明。
Electronic transformers as a key component of the process layer, how to choose a digital substation construction is facing an important issue. In response to this problem, the manufacturer of electronic transformers and digital substation has been put into operation to investigate and research, summed up the status of research and development of electronic transformers. From the aspects of realization principle, reliability and economy, comparative analysis of several electronic transformers entering the practical stage is made, and the reference scheme of electronic transformer selection and its configuration in the interval of main transformer are proposed. Specific problems that arise in the project are described.