A three-phase, 4-pole, star connected induction motor runs at 1350 r.p.m on a 50 Hz, 440V supply. The rotor has a resistance and per phase standstill reactance of 0.4Ω and 4Ω respectively. If the rotor/stator turns ratio is 0.6. Determine (i) Rotor current (ii) maximum torque (iii) Speed corresponding to maximum torque (iv) Total Rotor copper losses.
A three-phase, 4-pole, star connected induction motor runs at 1350 r.p.m on a 50 Hz, 440V supply. The rotor has a resistance and per phase standstill reactance of 0.4Ω and 4Ω respectively. If the rotor/stator turns ratio is 0.6. Determine (i) Rotor current (ii) maximum torque (iii) Speed corresponding to maximum torque (iv) Total Rotor copper losses.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter2: Fundamentals
Section: Chapter Questions
Problem 2.21P: An industrial plant consisting primarily of induction motor loads absorbs 500 kW at 0.6 power factor...
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Subject = electric machines
A three-phase, 4-pole, star connected induction motor runs at 1350 r.p.m on a 50 Hz, 440V supply. The rotor has a resistance and per phase standstill reactance of 0.4Ω and 4Ω respectively. If the rotor/stator turns ratio is 0.6. Determine (i) Rotor current (ii) maximum torque (iii) Speed corresponding to maximum torque (iv) Total Rotor copper losses.
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