Trafo electrics introduces zero defect transformers. This transformer is manufactured according to indian specification 2026, and has been awarded iso 9001:2000 quality certificate. This transformer has rating ranging from 25 kva to 5000 kva up to 33 kv class The core is made from interleaved low loss cold rolled, grain oriented steel laminations. Individual stampings are coated on both sides with an insulation material, which is both oil and temperature resistant. The core limbs are security bound with heavy duty webbed cotton tapes and the yokes are firmly clamped between steel channels. The windings of the transformer are designed to meet three fundamental requirements such as mechanical, thermal and electrical. They are cylindrical in shape and are assembled concentrically. The low-tension windings are helical in shape, single or multilayer, using flat copperstrips, depending upon the size and current rating of the transformer. The high tension windings consist of paper covered round conductors. For higher voltages, continuous disc windings are used. These transformers have tappings provided on the H.T. Windings at ± 2.5 percent and ± 5 percent on h.V. For h.V. Variation. The main components of insulation pro-fabricated from pressboard sheet.
