复杂故障情况下的变压器差动保护动作特性分析  

The Performance Characteristic Analysis of Transformer Differential Protection in a Complex Fault Condition

作　　者：袁宇波[1] 李澄[1] 葛永高[1] 王健[1] 

机构地区：[1]江苏省电力试验研究院有限公司,江苏南京210036

出　　处：《江苏电机工程》2006年第5期9-11,共3页Jiangsu Electrical Engineering

摘　　要：对一起变压器低压侧一点在区外、一点在区内的复杂短路故障情况进行了介绍及诊断,分析了故障下电流和变压器差动保护动作特性,根据现场的录波波形得出故障的类型,提出了故障排查和定位过程中应该注意的问题。This paper introduced and diagnosed a complex transformer short circuit fault in which one fault point was at the internal zone and the other fault point was at the external zone of the transformer. It analyzed the current and the performance characteristic of transformer differential protection in fault condition. Fault types were identified according to field recording waveforms. And the problems that should be paid attention to during the fault debugging and location were brought forward.

关 键 词：变压器 差动保护 复杂故障 

分 类 号：TM772[电气工程—电力系统及自动化]