A 5000-hp, 60-Hz, 1200-rpm, 4.1-kV, three-phase, Y-connected overexcited synchronous motor draws the armature current of 800 A
Question:
A 5000-hp, 60-Hz, 1200-rpm, 4.1-kV, three-phase, Y-connected overexcited synchronous motor draws the armature current of 800 A at 0.85 leading power factor under rated load. It has a synchronous reactance of 1.5 Ω/ph and negligible resistance. Determine
(1) The counter emf Ẽf,
(2) The torque angle δ, and
(3) The mechanical angle between the center lines of the rotor and stator magnetic fields.
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To determine the counter emf Ef torque angle and the mechanical angle between the center lines of th...View the full answer
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Related Book For 
Introduction To Electrical Power And Power Electronics
ISBN: 9781466556607
1st Edition
Authors: Mukund R. Patel
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