INDUSTRIAL MOTOR CONTROL
7th Edition
ISBN: 9780357670590
Author: Herman
Publisher: CENGAGE L
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Question
Chapter 35, Problem 5RQ
To determine
The number of phases that must be applied to the motor when the stepping motor is connected to the AC power.
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Problem 5
1.
Where and why is a centrifugal switch used in a split-phase motor?
2.
Why and where is a capacitor used in the single-phase AC motor?
3. What type of motor would you select to perform each of the following jobs?
(a) Electric drill:
(b) Refrigerator:
(c) Hair driers and desk fans:
(d) Air Conditioner Fan:
(e) XY plotters and printers:
(f) Electric clock:
A motor works when it is connected to AC. By mistake you connect it to
DC, but you see it also works with DC. What kind of motor is it?
Name three factors that determine the amount of voltage induced in the rotor of a wound-rotor motor.
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