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随着国民经济的发展,我国电网的规模越来越大,电压等级越来越高。继电保护在电网中的主要作用是通过预防事故或缩小事故范围来提高电网运行的可靠性,是保证电网安全稳定运行三道防线中的第一道防线,是防止电力设备损坏和电网事故扩大的重要手段。我刊特邀请湖南省电力公司调度通信局及系统内长期从事继电保护的专家介绍《继电保护技术》,共分13讲,从本期起连续刊登。
With the development of the national economy, the size of China’s power grid is getting bigger and bigger, and the voltage level is getting higher and higher. The main function of relay protection in the power grid is to increase the reliability of grid operation by preventing accident or narrowing the accident range. It is the first line of defense in ensuring the safe and stable operation of the grid. It is to prevent the damage of electric equipment and the expansion of grid accidents The important means. I hereby invite Hunan Electric Power Company to dispatch the communications bureau and experts in the system that have been engaged in relay protection for a long time to introduce the “Relay Protection Technology”, which is divided into 13 chapters and is published continuously from this issue.