A 3-phase 900 kVA, 3 kV / √3 kV (Δ/Y), 50 Hz transformer has primary (high voltage side) resistance per phase of 0.3 Ω and secondary (low voltage side) resistance per phase of 0.02 Ω. Iron loss of the transformer is 10 kW. The full load % efficiency of the transformer operated at unity power factor is ________ (up to 2 decimal places).

GATE 2018 Electrical Engineering Q51 — Electrical Engineering

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Electrical Engineering · Electrical Machines - Transformers

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Recurring concept

Electrical Machines - Transformers has appeared in GATE Electrical Engineering 2 times across 2 years (2018, 2026).

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TransformerEfficiencyIron lossCopper loss