摘要
注入式定子接地保护能单独实现发电机定子 1 0 0 %绕组的保护。在考虑注入电源内阻的基础上 ,通过对故障电流的详细分析 ,扩展定子接地保护中电流突变量的概念 ,采用更加有效的保护动作分量 。
The stator ground fault protection with injection voltage can provide 100% winding's protection.Based on detailed analysis of fault current with the internal resistance of voltage source considered,the more effective fault contribution current is induced,and the application of it is also highlighted,which can obtain higher sensitivity.
出处
《继电器》
CSCD
2000年第6期15-18,共4页
Relay
关键词
定子
单相接地保护
灵敏度
发电机
stator ground fault protection
injection voltage
sensitivity
