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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.
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