The ZGS22 (G) F combined step-up substation is a product designed for all types of wind powergeneration units. It can step up the voltage from 620V-1140V generated by the units to 10-35kV forgrid-connected output, and is extensively applied in new energy power distribution networks. The oiltank of the product is in fully sealed structure and equipped with elements such as oil temperaturegauges, oil level gauges, pressure gauges, pressure relief valves, and oil discharge valves to protectthe safe operation of the transformer. The incoming and outgoing lines of the product are designedin an underground insulated structure, which is convenient for installation and maintenance.