
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Transcribed Image Text:2. Calculate the full load voltage drop due to armature reaction.
RL(Q)
V(V) 42
L(A)
140
48
70
24
35
12
48//24 140//70//35 48//24//12
40.7 39.5
0.288 0.797 0.553 1.58 1.126 3.145 2.34
41.5
40.3
40.1
38.3
39.2
39.6
37
1.928
5.21
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- Electrical Machines Numerical Problems 1. A four-pole, lap wound DC machine is having 500 conductors on its armature and running at 1000 rpm. The flux per pole is 30 m Wb Calculate the voltage induced in the armature winding. What will be induced emf if the armature is rewound for wave winding? (Ans. 250 V, 500 V) 2. A 4-pole machine has an armature with 90 slots and 8 conductors per slot, the flux per pole is 0.05 Wb and runs at 1200 rpm. Determine induced emf if winding is (i) lap connected (ii) wave connected. (Ans. 720 V, 1440 Varrow_forwarddc machinesarrow_forwardA 4 pole lap wound dc machine has 728 active conductors running at 1800 rpm. The flux per pole is 30mWb, The armature current is 120 A, What is the electromagnetic power developed in the armature?arrow_forward
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