Important Questions in Electrical Engineering 131307 subject for NOV/DEC 2011 ANNA UNIVERSITY OF TECHNOLOGY AUT EXAMINATIONS FOR II YEAR CSE And IT Students
2. The primary and secondary windings of a 40 KVA, 6600/250V, 1f transformer has resistances of 10 Ω and 0.02Ω respectively. The leakage reactance of the transformer referred to the primary is 35 Ω. Calculate the full – load regulation at upf and 0.8 lagging pf. Neglect the no-load current.