A three-phase 460 V,60 Hz,6 pole, star connected induction motor has RS=0.32Ω,Rr′=0.18Ω,Xs=1.04Ω,Xr′=1.6Ω and Xm=18
Posted: Thu Jul 14, 2022 2:37 pm
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A three-phase 460 V,60 Hz,6 pole, star connected induction motor has RS=0.32Ω,Rr′=0.18Ω,Xs=1.04Ω,Xr′=1.6Ω and Xm=18.8Ω. The noload loss Pno load, is negligible. The load torque, which is proportional to speed squared, is 180 N−m at 1180rpm. If the motor speed is 950rpm, determine a) the load torque demand TL b) the rotor current c) the stator supply voltage d) the motor input current e) the motor input power Pi f) the slip for maximum current g) the maximum rotor current h) the speed at maximum rotor current