engineering recuitment Indian Coast Guard Yantrik Mock Test 2024 Electrical Machines Transformer Transformer Core Losses
A 2200/1100 V, 50 Hz single-phase transformer having a negligible winding resistance operates from a variable voltage, variable frequency supply such that V/f is constant. Which of the following options is correct about the range of frequencies?
1
eddy current loss vary and constant hysteresis loss
2
both hysteresis loss and eddy current loss varies
3
no variation either in eddy current or hysteresis loss
4
hysteresis loss vary and constant eddy current loss