A 50-Hz, 440-V, 6 pole wye connected induction motor is rated at 75 kW. The equivalent...

A 50-Hz, 440-V, 6 pole wye connected induction motor is rated at 75 kW. The equivalent parameters are as follows: RS = 0.082 Ω; RR’ = 0.07 Ω; XS = 0.19 Ω; XR’ = 0.18 Ω; XM = 7.2 Ω The losses associated with the machine are field and winding, miscellaneous and core loss with values of 1.3 kW, 150 W and 1.4 kW, respectively. For a slip of 4 %, determine:

a) The line current

b) The stator power factor

c) The stator copper losses

d) The air-gap power

e) The developed power

f) The induced torque

g) The motor speed in rad/s

h) The load torque

i) The overall machine efficiency

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Manojponduru answered 1 year ago

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