大电流限流开断器未正确动作导致的变压器跳闸故障分析  

Fault Analysis on Transformer Tripping Caused by Large Current Limiting Open Circuit Device with Incorrect Actions

作　　者：张志刚[1] 孟立会[1] 贾志辉[1] 甄利[1] 张树亮[2] 

机构地区：[1]国网河北省电力公司,石家庄050021 [2]国网沧州供电公司,河北沧州061000

出　　处：《河北电力技术》2016年第6期42-45,共4页Hebei Electric Power

摘　　要：针对一起大电流限流开断器爆开引起变压器跳闸故障进行分析,通过对故障设备解体检查、对启动定值进行核算、对控制器进行试验,认为该故障由串联电抗器发生匝间短路并发展成相间故障,限流开断器未完全切断故障回路,引起主变低压侧跳闸。最后,对故障反映出的问题提出一些改进建议。This paper analyzes the large current limiting open circuit device with incorrect actions lead to transformer tripping.Based on the fault equipment strip inspection,start setting value calculation and comparison,control device test analysis,draws a conclusion that the capacitor series reactor caused turn-to-turn short circuit and developed into interphase short circuit fault.And the fault was not disconnected by breaking device,caused transformer low-voltage side tripped.Finally,puts forward some suggestions for improvement to the fault.

关 键 词：变压器 大电流开短器 故障 跳闸 

分 类 号：TM761[电气工程—电力系统及自动化]