特定工况下500kV蝶岭站侧接地开关无法正常操作原因分析  

Analysis of the Grounding Switch in 500kV Dieling Substation Unable to be Normally Operated Under Certain Condition

作　　者：王清玲[1] 

机构地区：[1]广东电网公司阳江供电局,广东阳江529500

出　　处：《南方电网技术》2011年第3期100-102,共3页Southern Power System Technology

摘　　要：500 kV蝶岭—沧江线路为同杆双回线路,在一回运行、另一回停电时,蝶岭站侧无法正常操作线路接地开关。针对此问题,分析了实际测量数据和二次控制回路,指出线路静电感应电压太高是线路接地开关无法正常操作的主要原因,而更换线路接地开关、调整线路有电闭锁继电器动作值是可行的解决方案。The grounding switch in 500kV Dieling Substation is unable to be normally operated under a condition of the 500 kV Dieling-Cangjiang line,a double-circuit line on the same tower,with one circuit loaded and the other non-loaded.Aiming at the problem,and analyzing the measured data and secondary control loops,this paper points out that the problem is mainly due to high electrostatic induction,and a feasible solution is to replace the grounding switch and adjust the setting of voltage blocking relay for live line detecting.

关 键 词：线路接地开关 操作 静电感应电压 线路有电闭锁继电器 

分 类 号：TM564[电气工程—电器]