As the greatest hydropower station of china last century
the Generator of Ertan Hydropower Plant was supplied with the branch of GE Company in Canada.The protector of it was supplied with ABB Company.Generator neutral grounding used the single-phase transformer between generator neutral and ground early in domestic.
which coordinated with the stator winding protector of single-phase grounding.It has been running well till today.The thesis analyse and reseach in Generator neutral grounding by the single-phase transformer and the stator winding protector of single-phase grounding.