摘要
介绍了发电机失磁保护的新、旧两种原理、发电机失磁故障发生后的系统的特征量、发电机失磁后造成的危害。详细地介绍了新的逆无功原理的发电机失磁保护的方案配置、整定值的设定。并对发电机失磁保护两种原理的实现方案进行了分析、比较;提出了用逆无功原理的发电机失磁保护方法处理发电机失磁问题时相对于传统的阻抗型发电机失磁保护的多种优点;它是处理发电机失磁问题的方向。
This paper introduces the new and conventional theories of generator loss of field protection. System characteristic and harm of generator loss of field failure are proposed. It details the inverse reactive criterion and the setting values of the loss of field protection. The criterions of generator inverse reactive loss of field protection and generator static stability （asynchronous） boundary circle loss of field protection are analysed and compared. The advantages of generator inverse reactive loss of field protection are introducced. The new inverse reactive criterion is better than the impedance criterion.
出处
《继电器》
CSCD
北大核心
2005年第20期33-35,共3页
Relay
关键词
发电机失磁保护
系统特征量
阻抗原理
逆无功原理
loss of field protection of generator
system character
impedance criterion
inverse reactive criterion
