一起500 kV变电站站用变保护跳闸分析  

Analysis on a Substation Transformer Protection Trip in a 500 kV Substation

作　　者：高璐 沈蛟骁 余嘉彦 杨松 GAO Lu;SHEN Jiaoxiao;YU Jiayan;YANG Song(Suzhou Power Supply Company,Suzhou 215000)

机构地区：[1]国网江苏省电力有限公司苏州供电分公司,江苏苏州215000

出　　处：《电力安全技术》2024年第10期60-63,共4页Electric Safety Technology

摘　　要：分析了某500kV变电站一起站用变短路故障导致的保护跳闸事件,从故障录波图分析和短路电流估算入手,结合现场一次设备故障状态,对故障发生的原因进行了分析推理和验证,并提出了具体的防范措施和建议。Analysis is conducted on a protection trip event caused by a short-circuit fault of a 500 kV substation transformer.Starting from the analysis of fault waveform and short-circuit current calculation,combined with the fault status of equipment on a site,the fault causes are analyzed and verified,and specific prevention countermeasures and suggestions are put forward.

关 键 词：站用变 保护跳闸 故障录波 短路电流 

分 类 号：TM407[电气工程—电器]