WFBZ-01型发变组保护的误动分析及改进  

Misoperation analysis and improvement of WFBZ-01 protection in generation-transformer group

作　　者：杨晓东[1] 李国栋[1] 

机构地区：[1]华北电力大学电力系统保护与动态安全监控教育部重点实验室,北京102206

出　　处：《电力系统保护与控制》2009年第12期94-98,共5页Power System Protection and Control

摘　　要：通过对纵差动保护、基波零序电压型定子接地保护、发电机匝间保护等保护原理的分析,结合WFBZ-01型发变组保护的实际运行动作情况,主要进行了3ω定子接地保护误动分析和失步保护误动分析,给出了WFBZ-01型发变组保护在双重化配置、组屏、出口回路问题等方面的具体改进措施。Based on the analysis of protection principles of longitudinal differential protection, fundamental zero sequence voltage stator earth fault protection and generator inter-turn protection, and with the operation of WFBZ-01 protection in generation-transformer group, this paper mainly analyses the misoperation of 3ω generation stator earth fault protection and out-of-step protection, and gives specific improvement of WFBZ-01 protection in generation-transformer group in double allocation problems, group screen problems and outlet loop issues.

关 键 词：WFBZ-01 发变组保护 误动 3ω 失步 

分 类 号：TM774[电气工程—电力系统及自动化]