a three phase motor can be represented as having delta connected windings with impedance $50+$j$24$ ohms. it is supplied with $13\mathrm{.}8$ kV source. assume angle Van $=0.$

A$)$ calculate the equivalent wye connected impedance Zy

B$)$ calculate the a$-$phase current drawn by the motor Ia

C$)$ calculate the complex power drawn by the motor S

D$)$ calculate the power factor of the motor pf and state whether it is leading or lagging