110kV主变压器间隙保护误动作原因分析及处理措施  

Cause Analysis and Treatment Measures to Gap Protection Misoperation of 110 kV Main Transformer

作　　者：李标[1] 贾卫军[1] 芦纪良 李洪雷[1] 霍晓良 

机构地区：[1]国网河北省电力公司石家庄供电分公司,石家庄050051

出　　处：《河北电力技术》2015年第1期36-38,共3页Hebei Electric Power

摘　　要：介绍110kV千根变电站主变压器失压故障,分析故障排查的过程,认为低压侧违规小电源是造成主变间隙保护误动的原因,提出排查用户自备应急电源、完善保护配合、定位自备电源等措施。This paper introduces the fault of the voltage loss for the 110 kV Qiangen substation, analyzes the failure examine process, considers that low voltage ,side of small power supply is the cause of main transformer protection maloperation clear ance, finally puts forward trying to identify the user should bring along their own emergency power, perfect protection to coopcrate and takes the positioning self-provided power supply and other measures.

关 键 词：变电站 间隙保护 自备应急电源 潮流变化 

分 类 号：TM41[电气工程—电器]