Abstract: Analysis of the current status of wind power booster station transformer,this paper introduces the new type multifunctional structure characteristics of the main transformer, using new type of main transformer neutral point resistance ark to zero sequence protection as the main line fault protection, quickly cut line fault,ensure the normal operation of other fan and routes;Using the new type of the balance of the main transformer winding instead of SVG step-down transformers, save the investment cost;Equipped with intelligent online monitoring device,the realization of the main transformer of intelligent management,improve the safety and economic behavior of the wind farm,it is of high popularization value.

Key words: multi-function transformer, wind farm, application