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MEO Class II – MET : 2016/JAN/08 – 2016/NOV/08 – 2021/JAN/09 – 2022/FEB/09
Question
Q9. A 20kVA, 2000/220V, single-phase transformer has a primary resistance of 2.1Ω and a secondary resistance of 0.026Ω. The corresponding leakage reactance’s are 2.5Ω and 0.03Ω. Estimate the regulation at full load under power-factor conditions of.
(a) Unity;
(b) 0.5 (lagging) and
(c) 0.5 (leading).
Asked in Year/Month/Ques No.