Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Chapter 23, Problem 3SQ
What will happen if the start and jog push buttons of the circuit shown in Figure 23–4 are pushed at the same time?
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A 460 V 25 HP 4 poles connected in Y wound rotor induction motor has the following parameters: R1 = 0.641 ohms, X1 = 1.106 ohms, R2 = 0.332 ohms, X2 = 0.464 ohms and Xm = 26.3 ohms. For this machine calculate the maximum torque, rotation and corresponding slip.
For the following circuit. What is Vr. Additionally, what is the threshold input voltage VL that will change the output of the comparator from hight ot low.
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