Problem 38: A 2400V/400V single-phase transformer takes a no-load current of 0.5A, and the core loss is 400W. Determine the values of the magnetizing and core loss components of the no-load current. Draw to scale the no-load phasor diagram for the transformer.
Solution:
IM = 0.471A, ϕ0 = cos−1 0.3333 = 70.53°. Core loss component, IC = 0.167A.