TV故障引起的发电机定子接地保护动作分析  

Analysis on Generator Stator Earth Fault Protection by Voltage Transformer Fault

作　　者：张兵海[1] 苏艳宾 马彦河 焦国强[3] 张建忠[1] 张志猛[1] 刘辉[1] 

机构地区：[1]河北省电力研究院,石家庄050021 [2]国电河北龙山发电有限责任公司,河北邯郸056400 [3]华能上安电厂,石家庄050081

出　　处：《河北电力技术》2011年第4期5-6,37,共3页Hebei Electric Power

摘　　要：结合TV一次绕组匝间短路故障引起的发电机定子接地保护动作跳机实例,从发电机定子接地保护原理和TV绕组匝间短路故障数据两方面进行分析,认为TV一次绕组匝间短路引起的发电机定子接地保护动作属于正确动作,并介绍如何快速分析定位定子接地故障与TV绕组匝间短路故障的方法。From one generator unit tripping event caused by inter-turn winding short circuit fault in generator voltagetransformer,the paper researches the principle of generator stator-earthing protection and TV windings fault event data, considers that the operation of the generator stator-earthfault protection is correct,and discusses the method how to identify the generator stator-earth-fault with the inter-turn winding short circuit fault in generator voltage-transformer.

关 键 词：发电机 继电保护 TV 定子 接地保护 匝间短路 

分 类 号：TM451[电气工程—电器] TM771