6-28. A 460-V, 75 hp, four-pole, Y-connected induction motor has the following parametersP...

6-28. A 460-V, 75 hp, four-pole, Y-connected induction motor has the following parameters

PF& W; = 650W Pmisc = 150W Pcore = 600kW

For a slip of 0.01, find

(a) The line current IL

(b) The stator power factor

(c) The rotor power factor

(d) The rotor frequency

(e) The stator copper losses PSCL

(f) The air-gap power PAG

(g) The power converted from electrical to mechanical form Pconv

(h) The induced torque

(i) The load torque

(j) The overall machine efficiency n

(k) The motor speed in revolutions per minute and radians per second

(l) Sketch the power flow diagram for this motor.

(m) What is the starting code letter for this motor?