Question

A 460 V, four pole, 60 Hz, Y connected three phase induction motor develops its full-load induced torque at 3.8% slip when operating at 60 Hz and 460 V. The per phase circuit model impedances of the motor are; R1= 0.33 ?, X1=0.42 ?, Xm= 30 ?, X2=0.42 ? Mechanical, core, and stray losses may be neglected in this problem. Find; a-The value of the rotor resistance R2 b-The rotor speed at maximum torque for this motor c-The starting torque of this motor

Name: A 460 V, four pole, 60 Hz, Y connected three phase induction motor develops its full-load induced torque at 3.8% slip when operating at 60 Hz and 460 V. The per phase circuit model impedances of the motor are; R1= 0.33 ?, X1=0.42 ?, Xm= 30 ?, X2=0.42 ? Mechanical, core, and stray losses may be neglected in this problem. Find; a-The value of the rotor resistance R2 b-The rotor speed at maximum torque for this motor c-The starting torque of this motor
Uploaded: 2022-12-09T20:42:27-08:00
Duration: 3 min 45 s
Channel: Sri K

          A 460 V, four pole, 60 Hz, Y connected three phase induction motor develops its full-load induced torque at 3.8% slip when operating at 60 Hz and 460 V. The per phase circuit model impedances of the motor are; R1= 0.33 ?, X1=0.42 ?, Xm= 30 ?, X2=0.42 ? Mechanical, core, and stray losses may be neglected in this problem. Find; a-The value of the rotor resistance R2 b-The rotor speed at maximum torque for this motor c-The starting torque of this motor

A 460 V, four pole, 60 Hz, Y connected three phase induction motor develops its full-load induced torque at 3.8% slip when operating at 60 Hz and 460 V. The per phase circuit model impedances of the motor are; R1= 0.33 ?, X1=0.42 ?, Xm= 30 ?, X2=0.42 ? Mechanical, core, and stray losses may be neglected in this problem. Find; a-The value of the rotor resistance R2 b-The rotor speed at maximum torque for this motor c-The starting torque of this motor

Added by Michael H.

University Physics with Modern Physics

Hugh D. Young 14th Edition

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Solved by Expert Sri K

12/09/2022

Step 1

- The motor is a 460 V, four-pole, 60 Hz, Y-connected three-phase induction motor. - The full-load induced torque occurs at a slip (s) of 3.8% or 0.038. - The per-phase circuit model impedances are given as Ru = 0.33 Ω (stator resistance), X = 0.442 Ω (stator Show more…

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A 460 V, four-pole, 60 Hz, Y-connected three-phase induction motor develops its full-load induced torque at 3.8% slip when operating at 60 Hz and 460 V. The per-phase circuit model impedances of the motor are: R1 = 0.33 ̩, X1 = 0.42 ̩, Xm = 30 ̩, X2 = 0.42 ̩. Mechanical, core, and stray losses may be neglected in this problem. Find: a) The value of the rotor resistance R2, b) The rotor speed at maximum torque for this motor, c) The starting torque of this motor.