IESL Part II Electrical

IESL Qualifying Examination Part II - Electrical Engineering (Institution of Engineers, Sri Lanka)

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A 50 kVA, 2400/240 V, single-phase transformer has an equivalent resistance of 1.5% and an equivalent reactance of 4.0%. What is the voltage regulation of this transformer when operating at full load with a power factor of 0.8 lagging?

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