(Solved): A 15KVA,3.81KV/381V,60Hz,YY,3-phase transformer is supplying 15KVA of power to a load a ...

A $15\mathrm{KVA},3.81\mathrm{KV}/381?\mathrm{V},60\mathrm{Hz},\mathrm{Y}?\mathrm{Y},3$-phase transformer is supplying $15\mathrm{KVA}$ of power to a load at 0.85 Leading power factor, a line load voltage of 381 Volts. Its per-phase equivalent circuit is given below. Calculate the magnitude of the line input voltage of this transformer. Select one: a. None b. $V_{p(ine}=3.58\mathrm{KV}$ C. $V_{\text{pline }}=6210$ Volts d. $V_{\text{pine }}=2.07\mathrm{KV}$