IEEMA | Your link to electricity

Factor 1965-75 1975-95 1995-2005 Two winding Transformer 1.20 1.15 1.10 Auto-Transformer 1.25 1.20 1.13 Difference between active part – (Copper + Core) can be taken as the weight of mild steel fabricated item plus oil impregnated insulation materials (paper, pressboard, wood) in the ratio of 50:50. ................
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