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  1. traj123

    Transformer loss from %Z and X/R

    Hi all, Is it possible to calculate/ make an educated guess about iron and copper losses from the following information: 1) Transformer ratings: 20MVA (34.5kV -> 70kV) 2) %z = 10% impedance at base 3) X/R = 23 I need to make some preliminary assessments and I'm not a power systems engineer so...

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