摘要
建立了求解多分支水轮发电机定子绕组内部故障情况下的稳态电气量的通用数学模型。以ＳＦ１２５９６／１５６００ 水轮发电机为例，全面探讨了匝间短路、支路间短路时匝比、故障位置、过渡电阻等对单元件横差保护方案灵敏度的影响规律，并分析了匝间短路保护死区。
The generally mathematical model for calculating the steady state currents of the multi branch hydro generator with the internal armature winding faults is established in this paper. The effect laws of the turns ratio, the fault position and the electric arc resistance on the sensitivity of the single element transverse differential protection scheme are investigated in the case of the turn to turn and the branch to branch faults of hydro generator SF125 96/15600. And the dead zone of the interturn fault protection is analyzed.
出处
《中国电机工程学报》
EI
CSCD
北大核心
1999年第11期32-36,75,共6页
Proceedings of the CSEE
基金
国家教育委员会博士点基金资助
关键词
水轮发电机
故障
横差保护
灵敏度
单元件
hydro generator
internal faults
transverse differential protection
sensitivity
