220kV – 250MVA transformer belongs to 220kV voltage transmission transformer, 250MVA capacity, used in power transmission to different areas.
The product is manufactured and tested according to TCVN 6306-1: 2015 (IEC 60076-1: 2011), short-circuit tested abroad to meet international standards on transmission transformers.
The main materials constituting the product include: Silica sheet: Japan, Korea; Electromagnetic wire / paper coated copper M1; Insulating oil of Swedish and American brands. Under-load regulator (OLTC) from Germany. Insulating paper: Germany, Sweden. Magnetic circuit of cross-cutting and punch-cutting on G7 corrugated board; The wiring is constructed on specialized equipment; The machine is vacuum dried.