The synchronous reactance of the direct-axis and quadrature-axis of a three-phase, 40-pole, 50 Hz, 13,8 kV, salient-pole synchronous generator is 2,38 Ω and 1,33 Ω respectively. The resistance of the star-connected stator is negligible. The load angle of the machine is 30°e and the excitation is set to induce an emf of 167%. Sketch the phasor diagram and calculate: (a) current (b) power (c) reluctance torque
The synchronous reactance of the direct-axis and quadrature-axis of a three-phase, 40-pole, 50 Hz, 13,8 kV, salient-pole synchronous generator is 2,38 Ω and 1,33 Ω respectively. The resistance of the star-connected stator is negligible. The load angle of the machine is 30°e and the excitation is set to induce an emf of 167%. Sketch the phasor diagram and calculate: (a) current (b) power (c) reluctance torque
Chapter39: Synchronous Motor Operation
Section: Chapter Questions
Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...
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The synchronous reactance of the direct-axis and quadrature-axis of a three-phase,
40-pole, 50 Hz, 13,8 kV, salient-pole synchronous generator is 2,38 Ω and 1,33 Ω
respectively. The resistance of the star-connected stator is negligible. The load angle of
the machine is 30°e and the excitation is set to induce an emf of 167%. Sketch the phasor
diagram and calculate:
(a) current
(b) power
(c) reluctance torque
(d) the maximum load angle
(e) the maximum power developed
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