5. A 440V, 50HZ, 10 pole, delta/Y connected induction motor is rated at 100kW. The equivalent parameter for the motor are: R, =0.082/ phase X, = 0.30/ phase R =0.12/ phase X, = 0.20/ phase R = 00 X = 60/ phase At full load condition , the friction and windage losses are 400W, the miscellaneous losses are 100W and the core losses are 1000W. The slip of the motor is 0.04. Calculate the input power (i) (ii) Calculate the stator copper loss Calculate the air gap power (iii)

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5. A 440V, 50HZ, 10 pole, delta/Y connected induction motor is rated at 100kW. The
equivalent parameter for the motor are:
R,-01Ω/phase
X, = 0.20/ phase
R, =0.082/ phase
X.-03Ω/ph ase
X = 60/ phase
R = 00
At full load condition , the friction and windage losses are 400W, the miscellaneous
losses are 100W and the core losses are 1000W. The slip of the motor is 0.04.
(i)
Calculate the input power
(ii) Calculate the stator copper loss
(iii) Calculate the air gap power
(iv) Calculate the converted power
Calculate the torque induced by the motor
(vi) Calculate the load torque
(vii) Calculate the starting torque
(viii) Calculate the maximum torque and slip
(ix) Calculate the efficiency of the motor
(v)
Transcribed Image Text:5. A 440V, 50HZ, 10 pole, delta/Y connected induction motor is rated at 100kW. The equivalent parameter for the motor are: R,-01Ω/phase X, = 0.20/ phase R, =0.082/ phase X.-03Ω/ph ase X = 60/ phase R = 00 At full load condition , the friction and windage losses are 400W, the miscellaneous losses are 100W and the core losses are 1000W. The slip of the motor is 0.04. (i) Calculate the input power (ii) Calculate the stator copper loss (iii) Calculate the air gap power (iv) Calculate the converted power Calculate the torque induced by the motor (vi) Calculate the load torque (vii) Calculate the starting torque (viii) Calculate the maximum torque and slip (ix) Calculate the efficiency of the motor (v)
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