A 3-phase, 5 kW, 440 V, 0.8 rated power factor (lagging), 50 Hz, 6-pole, Y-connected synchronous motor has negligible stator winding resistance and synchronous reactance of 6 Ω. Calculate (i) Torque angle at full load (ii) Pull out torque (iii) Armature current and power factor at half the rated torque and (iv) Torque when operating at upf and 150% of rated field current.

All Questions › Category: Electrical Industrial Drives › A 3-phase, 5 kW, 440 V, 0.8 rated power factor (lagging), 50 Hz, 6-pole, Y-connected synchronous motor has negligible stator winding resistance and synchronous reactance of 6 Ω. Calculate (i) Torque angle at full load (ii) Pull out torque (iii) Armature current and power factor at half the rated torque and (iv) Torque when operating at upf and 150% of rated field current.

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cs asked 5 years ago

I need solution.