engineering recuitment GATE EE 2023-24 Test Series Electrical Machines Transformer Transformer Core Losses
A 220 V, 50 Hz transformer with 0.35 mm thick laminations has eddy-current loss of 120 watt which is two-third of total loss at no load. If this transformer is built with 0.7 mm thick laminations and is worked from 110 V, 25 Hz, then total no-load loss would be
1
150 watt
2
510 watt
3
200 watt
4
45 watt