This project is located in Xiyang County, Jinzhong City, Shanxi Province, China. The total installed capacity of this project is 134.5344 megawatts. 244608 single crystal single sided photovoltaic modules with a peak power of 550 watts are selected, and 32 3150KVA-35kV/0.69kV double split step-up box transformers are used. According to customer requirements, Hengfengshuai Electric's main configuration of this photovoltaic step-up box transformer is 3150KVA-35kV/0.69kV double split step-up transformer, inverter, high-voltage isolation switch, high-voltage fuse High voltage current transformers, high voltage voltage transformers, low voltage control cabinets, photovoltaic combiner boxes, etc., are made of 304 stainless steel material and sprayed with plastic to ensure the reliability of equipment operation.