飞来峡水利枢纽4#机组逆功率保护跳闸事故原因分析及处理措施
비래협수리추뉴4#궤조역공솔보호도갑사고원인분석급처리조시
The Analysis of Causes and Treatment Measures of Trip Fault Caused by Reverse Power Protection for Unit No.4 in Feilaixia Hydraulic Power Plant