一起330kV变电站跳闸事故原因分析  

Analysis on the Reason of A 330 kV Substation Trip Accident

作　　者：王学斌[1] 赵世昌[1] 王轩[1] 汪凤月[1] 罗敏[1] 杨文丽[1] 杨嘉[1] 丛贵斌[1] WANG Xuebin ZHAO Shichang WANG Xuan WANG Fengyue LUO Min YANG Wenli YANG Jia CONG Guibin

机构地区：[1]国网青海省电力公司电力科学研究院,青海西宁810008

出　　处：《青海电力》2016年第4期60-62,共3页Qinghai Electric Power

摘　　要：介绍一起330 kV变电站保护误动事故,通过技术分析及现场试验,指出故障合并单元FPGA芯片短暂工作异常引起插值时刻出错,装置输出波形畸变导致事故发生,并提出建议,以避免相同事故再次发生。An introduction to a mal-operation accident of a 330 kV substation protection is given in this paper. Based on technical analysis and field test result,this paper concludes that a short abnormal situation of the fault merging unit FPGA chip caused error in interpolation time and the distorted waveform output from the device,finally the accident.And suggestions are given for preventing similar incidents from happening again.

关 键 词：合并单元 波形畸变 温度变化试验 防范措施 

分 类 号：TM773.1[电气工程—电力系统及自动化]