The characteristics of single phase grounding fault in large-scale wind farm and the work principles of multi-tap adjustable arc suppression coil, partial magnetic arc suppression coil and SCR arc suppression coil are introduced, as well as the advantages of dynamic compensation technology and its application in arc suppression of single phase grounding fault in large-scale wind farm are discussed in this paper. Combined with the design and operating experiences of wind power, the main electrical wiring in booster station and equipment selection are optimized by using three-winding transformers and 35 kV neutral point grounding via arc suppression coil. The field test results show that this scheme is beneficial to the safe and stable operation of wind farms.