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Problem 1 Stator of 3-phase machine is excited by a current source as follows: I, lags Ia by 120 degrees and Ie lags I, by 120 degrees. Three-currents excite their respective windings on stator as shown in the figure. For Ia = -Im for 0 < 0 < 7 Ia Im for 7 < 0 < 27 (a) Draw Ia, Ib, Ic. (b) Find Bnet- (c) Explain significance of Bnet in terms of rotation speed and rotation direction.

Problem 1 Stator of 3-phase machine is excited by a current source as follows: I, lags Ia by 120 degrees and Ie lags I, by 120 degrees. Three-currents excite their respective windings on stator as shown in the figure. For Ia = -Im for 0 < 0 < 7 Ia Im for 7 < 0 < 27 (a) Draw Ia, Ib, Ic. (b) Find Bnet- (c) Explain significance of Bnet in terms of rotation speed and rotation direction.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Problem 1 Stator of 3-phase machine is excited by a current source as follows: I, lags Ia by 120 degrees and Ie lags I, by 120 degrees. Three-currents excite their respective windings on stator as shown in the figure. For Ia = -Im for 0 < 0 < 7 Ia Im for 7 < 0 < 27 (a) Draw Ia, Ib, Ic. (b) Find Bnet- (c) Explain significance of Bnet in terms of rotation speed and rotation direction.
Transcribed Image Text:Problem 1 Stator of 3-phase machine is excited by a current source as follows: I, lags Ia by 120 degrees and Ie lags I, by 120 degrees. Three-currents excite their respective windings on stator as shown in the figure. For Ia = -Im for 0 < 0 < 7 Ia Im for 7 < 0 < 27 (a) Draw Ia, Ib, Ic. (b) Find Bnet- (c) Explain significance of Bnet in terms of rotation speed and rotation direction.
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