变电站开关场接地线过热原因分析及对策  

Cause Analysis and Countermeasures for Overheating of Ground Connection Line in Substation Switch Field

作　　者：赵诣 赵金 曹文东 ZHAO Yi;ZHAO Jin;CAO Wendong(Maintenance Company of State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi,Xinjiang 830000,China;Electric Power Research Institute of State Grid Shanxi Electric Power Corporation,Taiyuan,Shanxi 030001,China)

机构地区：[1]国网新疆电力有限公司检修公司,新疆乌鲁木齐830000 [2]国网山西省电力公司电力科学研究院,山西太原030001

出　　处：《山西电力》2020年第1期30-32,共3页Shanxi Electric Power

摘　　要：通过研究超高压变电站开关场接地线过热的案例,指出低压电抗器产生的强磁场在环形回路中产生的电流是造成变电站开关场接地线过热的原因,并提出了取消一次接地铜排的解决措施,工程实践表明该措施正确有效。The research suggests that the current in loop circuit generated by high-intensity magnetic field which is caused by low voltage reactor be the cause of overheating of ground connection line in substation switch field based on an analysis of some cases about the actual overheating of ground connection lines in extra-high voltage substation. And it proposes the resolution of a cancellation of primary ground copper bars. The engineering practice has proved that this measure is both correct and effective.

关 键 词：变电站 强磁场 环形回路 接地线 过热 

分 类 号：TM407[电气工程—电器]