Specification: 1.Machine- inserted silicon steel with fire retardation 2.Flame Retardant Nylon Bobbin 3.Equipment: 3 EI type transformer lines, 4.Sets of vacuum annealing furnaces Technical Parameters: Single phase or three phase design Separate winding or autowinding (autotransformer) Aluminum wire or copper wire optional Power range from 1KVA up to 1MVA Voltage value up to 10KV Dielectric strength: Line to Line, Line to Grouding: 300VAC/50Hz/60S Degrees of protection: IP00 / IP20 / IP23 Insulation grade: H Standard: IEC726:1982 Dry Electric Transformer, GB6450-86 Dry Electric Transformer Other Information: 1.Payment:T/T,Western Union,Paypal 2.Delivery Date:5-7days,according to the product specific design 3.Package:standard packing or customized 4.Express:FedEx,TNT,DHL,UPS,EMS