A 500-KVA, 2300/230-V, 60-Hz, step-down, two-winding transformer has the following parameters RH = 1.2 Ohm, XH = 3 Ohm,

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A 500 Kva 2300 230 V 60 Hz Step Down Two Winding Transformer Has The Following Parameters Rh 1 2 Ohm Xh 3 Ohm 1 (32.88 KiB) Viewed 23 times

A 500-KVA, 2300/230-V, 60-Hz, step-down, two-winding transformer has the following parameters RH = 1.2 Ohm, XH = 3 Ohm, RL = 12 mR, XL = 30 mR, RCH = kOhm, XmH = 1.8 kOhm. If the transformer operates at half load at its rated terminal voltage with a 0.75 lagging power factor, a) Find the supply voltage and power factor b) Draw the power triangle as seen from the supply c) find the transformer efficiency d) Draw the complete phasor diagram