The product has an exceptional insulation stress control using a fine graded bushing (less weight, less oil volume, increase security and dependability). appropriate for line discharging, basically unaffected by stray external magnetic fields. Restricted use of disintegration materials (aluminum tank and head). It also has excellent tectonic accomplishment due to advanced composition (low weight) and porcelain (cementing) and flanges (welding). It features low reactance, primary authorized high short circuit currents and high primary current. It also has a perfect transient performance. Security capable circumspection of internal overpressure, shielded secondary windings, hermetically sealed).