Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Chapter 57, Problem 6SQ
To determine
Explain the process that takes place when the motor is reversed by reversing the generator polarity.
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stator
brushes
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This type of armature winding delivers high e.m.f. and low current.
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Electric Motor Control
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- Why does a split- phase motor continue to operate after the start windings have been disconnected from the circuit?arrow_forwardWhy are different motor connections shown for what appears to be the same motor in the various diagrams in Figure 332? FIG. 332 Typical arrangements for four-speed, three-phase, two-winding motors.arrow_forwardIf the power measured per phase is increasing, what will happen to the speed of the three phase induction motor? a. Decrease b. Equal c. Increase d. Zeroarrow_forward
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- a. Explain how a rotating magnetic field is produced in a three-phase induction motor. b. Explain the rotor action on a three-phase squirrel cage motor when the load increases from NO-LOAD to rated FULL- LOADarrow_forward14/ What are the following statements are true for a three-phase induction motor? I. Three-phase induction motor stator winding is fed from a three-phase supply II. Stator carries a three-phase winding III. Rotor carries a short circuited winding a. I and II only b. I,II and III c. II and III d. I onlyarrow_forwardis the following correct? True or false? If the rotor of the asynchronous motor is reversed in the rotating field, the machine starts to work as a generator.arrow_forward
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