发电机定子绕组端部动态特性试验的实践意义和标准掌握

Practical Significance and Standards of Dynamic Characteristic Test for Generator Stator End Windings

用事故实例分析了发电机定子绕组端部绝缘磨损故障的成因和后果,介绍了确定发电机运行时定子绕组端部振动特性的静态试验方法——发电机定子绕组端部动态特性试验的基本概念,并通过试验实例说明了该项试验在保障发电机安全运行避免重大事故方面的重要实用意义,随后介绍了我国相关的试验标准,指出了不同标准的异同之处和根据实际情况协调运用标准的基本原则。

This paper analyzes the cause and consequence of insulation breakdown fault on generator stator end windings and introduces the basic concept of the static test method to determine the vibrating characteristics on generator stator end turns during operation. The test has shown that this method plays important role on safeguarding generator operation, avoiding sever fault on generator. The paper also introduces the associated standards in China.