... & distribution in industrial and civil occasions, to step down grid voltage (6-35KV) to line voltage 400V. The transformers ... buildings, airports, terminals, power plants, transformer stations, residential areas or packages of various sites.Product standard: IEC60076 & GB/T10228, ... .Voltage class: 6-35KV 2.Model of voltage regulation: Off-excitation or on-load tap changer 3.Tapping range: 5%, 2x2.5 ...