Question

4-13.The no-load test on a certain transformer with its secondary terminals open yields this data: 400 V, 2.5 A,150 W. Neglecting the winding resistance and leakage flux, calculate a. the

core-loss current. b. the magnetizing current. c. the no-load power factor.

Fig: 1

Fig: 2

Fig: 3

Fig: 4