A 100 kVA, 2300/230V, single phase transformer has the following parameters: Rp = 0.30Ω, Rs = 0.0030Ω, Rc = 4.5 kΩ, Xp = 0.65Ω, Xs = 0.0065Ω, Xm = 1.0 kΩ The transformer delivers 75 kW at 230 V at 0.85 power factor lagging, find:
a) The input current.
b) The input voltage.
The Attempt at a Solution
Referred to primary
I'm confused with the part where the transformer delivers 75kW. Then will the secondary current be 0.75*Israted ?