摘要
本文以某电厂为例,以发电机过电压保护的动作时间为基准,对其误强励灭磁时的相关电气量进行工程上的简化计算,并与该电厂灭磁开关的技术参数进行比对分析,从而对该电厂发电机过电压保护的动作时间的整定提出修改意见。
According to the pickup time of the overvoltage protection of one certain plant, this paper simplified calculates some related electrical variables on no-load fault forcing excitation condition and compares these variabtes with the parameters of the de-excitation circuit breaker of the plant. According to the result of the analysis, this paper puts forward to modify the setting value of the pickup time of the overvoltage protection of this plant.
出处
《水电与抽水蓄能》
2016年第1期30-34,共5页
Hydropower and Pumped Storage
关键词
空载误强励
灭磁
过电压保护
动作时间
no-load fault forcing excitation
de-excitation
overvoltage protection
pickup time
