The abnormal phenomenon of long time higher neutral voltage shift in a substation is analyzed, which is grounded through arcsuppression coil.
针对变电所消弧线圈接地系统在正常运行情况下中性点位移电压长时间偏高现象，进行了分析。
2
Aim at an-arcsuppression reactor earthing power system, we design a suit of microcomputer system for compensating single-phase earthing current and selecting line.
针对中性点经消弧线圈接地的小电流接地系统，设计了一套单相接地补偿及选线的微机保护装置。
3
It is pointed out that the proper adjustment of arcsuppression coil and coordination of system parameters may reduce the setting values and improve the running reliability.