发电机定子接地保护动作原因分析  

Action Cause Analysis of Generator Stator Grounding Protection

作　　者：张美锋 ZHANG Meifeng(Fujian Huadian Power Generation Co.,Ltd.,Fuzhou 350512,China)

机构地区：[1]福建华电可门发电有限公司,福建福州350512

出　　处：《电工技术》2020年第19期110-111,共2页Electric Engineering

摘　　要：某电厂发生了一起发电机定子接地保护动作事件,通过对发电机定子接地保护原理、动作逻辑及定值的深入分析,快速找到接地保护动作的真实原因。同时,通过对本次接地保护动作的原因分析与故障排查,探讨发电机定子接地保护拒动、误动及动作可靠性。A generator stator grounding protection action occurred in a power plant.Through the in-depth analysis of the generator stator grounding protection principle,action logic and setting value,the real reason of the ground protection action was quickly found.At the same time,through the cause analysis and troubleshooting of this grounding protection action,the failure,misoperation and operation reliability of generator stator grounding protection were discussed.

关 键 词：发电机组 定子接地 保护动作 

分 类 号：TM31[电气工程—电机]