10 kV电网中压柜电压互感器烧毁原因分析  

Analysis on the Causes of Burnouts of Voltage Transformers in Medium-voltage Cabinets of 10 kV Power Grids

作　　者：郭晓军 GUO Xiaojun(Tianjin Branch of CNOOC(China)Limited,Tianjin 300457)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300457

出　　处：《电力安全技术》2024年第5期61-63,共3页Electric Safety Technology

摘　　要：针对渤海某油田10 kV电网因一起海缆单相接地故障导致电压互感器C相严重烧毁的事件,对整个事件进行了梳理与还原,结合电压互感器检测试验获取到相关设备的数据,以此为基础对事件的原因进行详细分析,并提出相应的防范措施,以保障设备以及电网的安全稳定运行。In response to a serious phase-C burnout of voltage transformer in a 10 kV power grid of a Bohai oilfield due to a single-phase grounding fault of a submarine cable,the entire event is sorted out and restored.Based on the data obtained from voltage transformer detection tests,the causes of the event are analyzed in detail,and the corresponding preventive measures are proposed to ensure the safe and stable operation of equipment and the power grid.

关 键 词：10 kV电网 电压互感器 铁磁谐振 过电压 中性点接地 

分 类 号：TM86[电气工程—高电压与绝缘技术]