A stepper motor is to be designed to meet the following requirements: → The stator must have 3 phases → The required full step size is 5° Determine the number of rotor poles.
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Adi S.
A 3-phase star-connected induction motor has a 4-pole stator winding. The motor runs on a 50 Hz supply with 230 V between lines. 3.1.1. The total torque at 5% [8] 3.1.2. The maximum torque [5] 3.1.3. The speed of the maximum torque if the ratio of the rotor to stator turns is 0.67 while neglecting stator impedance [2] TOTAL MARK = 50
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Calculate the number of stator conductors per slot for a 3-phase, 50 Hz alternator if the winding is star connected and has to provide a line voltage of 13 kV when the machine is on open circuit. The flux per pole is 0.15 Wb. Assume a full pitch coil and the stator to have 3 slots/pole/phase. The speed is 300 rpm.
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