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A 2500 V, 50 Hz, 1000 hp 0.85 PF leading four poles Y-connected synchronous motor has a synchronous reactance of 1.5 № and negligible armature resistance. Ignore its friction, windage, and core losses for the purposes of this problem. (i) (ii) (iii) If this motor is initially supplying 1000 hp at 0.85 PF lagging, determine the magnitudes and angles of Е and IĄ. Based on Q2(b)(i), sketch the phasor diagram of this motor. Calculate the torque that this motor is producing, Tind and the maximum possible induced torque for this motor, Tind,max.

A 2500 V, 50 Hz, 1000 hp 0.85 PF leading four poles Y-connected synchronous motor has a synchronous reactance of 1.5 № and negligible armature resistance. Ignore its friction, windage, and core losses for the purposes of this problem. (i) (ii) (iii) If this motor is initially supplying 1000 hp at 0.85 PF lagging, determine the magnitudes and angles of Е and IĄ. Based on Q2(b)(i), sketch the phasor diagram of this motor. Calculate the torque that this motor is producing, Tind and the maximum possible induced torque for this motor, Tind,max.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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A 2500 V, 50 Hz, 1000 hp 0.85 PF leading four poles Y-connected synchronous motor has a synchronous reactance of 1.5 № and negligible armature resistance. Ignore its friction, windage, and core losses for the purposes of this problem. (i) (ii) (iii) (iv) If this motor is initially supplying 1000 hp at 0.85 PF lagging, determine the magnitudes and angles of EA and IĄ. Based on Q2(b)(i), sketch the phasor diagram of this motor. Calculate the torque that this motor is producing, Tind and the maximum possible induced torque for this motor, Tind,max If the magnitude of the internal generated voltage, |ĒÂ| is increased by 15 percent, determine the new magnitude of the armature current and its new PF.
Transcribed Image Text:A 2500 V, 50 Hz, 1000 hp 0.85 PF leading four poles Y-connected synchronous motor has a synchronous reactance of 1.5 № and negligible armature resistance. Ignore its friction, windage, and core losses for the purposes of this problem. (i) (ii) (iii) (iv) If this motor is initially supplying 1000 hp at 0.85 PF lagging, determine the magnitudes and angles of EA and IĄ. Based on Q2(b)(i), sketch the phasor diagram of this motor. Calculate the torque that this motor is producing, Tind and the maximum possible induced torque for this motor, Tind,max If the magnitude of the internal generated voltage, |ĒÂ| is increased by 15 percent, determine the new magnitude of the armature current and its new PF.
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A 2500 V, 50 Hz, 1000 hp 0.85 PF leading four poles Y-connected synchronous motor has a synchronous reactance of 1.5 № and negligible armature resistance. Ignore its friction, windage, and core losses for the purposes of this problem. (iv) ||| If the magnitude of the internal generated voltage, [EÂ| is increased by 15 percent, determine the new magnitude of the armature current and its new PF.
Transcribed Image Text:A 2500 V, 50 Hz, 1000 hp 0.85 PF leading four poles Y-connected synchronous motor has a synchronous reactance of 1.5 № and negligible armature resistance. Ignore its friction, windage, and core losses for the purposes of this problem. (iv) ||| If the magnitude of the internal generated voltage, [EÂ| is increased by 15 percent, determine the new magnitude of the armature current and its new PF.
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