A step up transformer supplies a current of 5 amp to the load at 200 V. The power factor of the  load is 0.8 lagging. Given that R1 = 0.5 ohm, X1 = 1 ohm, R2 = 2 ohm, X2 = 4 ohm, k = 2,  R0 = 450ohms and X0 = 250 ohms. Calculate the magnitude and phase of V1 and I1 with V2 as  reference phasor and calculate the input power factor.  [Ans:V1 = 129.986.50 V, I1 = 10.56-37.880  A and input pf = 0.71 lagging ]

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Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.