Research on the grounding method of the low-voltage side of the main transformer of the wind farm

Abstract

With the rapid development of China's wind power industry, relevant codes are too late to update. Therefore, it is necessary to explore and research in the design work, especially the electrical design of the low-voltage side grounding method of the main transformer of the wind farm. Many details are still worth discussed. This paper only discusses the grounding method of the low-voltage side of the main transformer of the wind farm, the matching of the high-voltage fuse of the pad mount transformer and the capacity of transformer, the design of the grounding resistance, and the setting calculation of the single-phase grounding current of the collecting cable line of the wind farm.