甩负荷试验中发电机频率异常保护动作分析Analysis on Abnormal Action of Generator Frequency Protection in Load Rejection Test
童凯,张雪松,骆丽
TONG Kai,ZHANG Xue-song,LUO Li(Zhejiang Electric Power Test and Research Institute
摘要(Abstract):
针对某电厂一起发电机甩负荷试验引起发电机频率异常保护动作的情况,分析了发生频率异常的原因,以及过频率和低频率对发电机产生的不同影响,提出了对频率异常保护整定配置的改进措施。
Based on the abnormal action of generator frequency protection in the load rejection test in a power plant,this paper analyzes the causes and the different influences of the over-frequency and low frequency on the generator,puts forward the improvement measures of setting configuration of abnormal frequency protection.
关键词(KeyWords):
发电机;甩负荷试验;频率异常保护
generator;load rejection test;abnormal frequency protection
基金项目(Foundation):
作者(Author):
童凯,张雪松,骆丽
TONG Kai,ZHANG Xue-song,LUO Li(Zhejiang Electric Power Test and Research Institute
DOI: 10.19585/j.zjdl.2011.12.019