4) A 480V, 60 Hz, 6-pole, three-phase, delta-connected induction motor has the following parameters: R1 0.461 Q, R2=0.258 Q, X1=0.507 Q, X2-0.309 2, Xm-30.74 Rotational losses are 2450W. The motor drives a mechanical load at a speed of 1170 rpm. Calculate the following information: Synchronous speed in rpm slip Line Current i. ii. 111. iv. Input Power V. Airgap Power vi. Torque Developed vii. Output Power in Hp viii. Efficiency