Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Chapter 51, Problem 2SQ
Differentiate between the AC and DC magnetic fields applied to an induction motor stator.
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Electric Motor Control
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- c) Provide your recommendations for reduction of magnetic losses in an induction motor.arrow_forwardQ25) i) What are the factors that the induced voltage in three phase induction motor depends upon and Explain how the rotating magnetic field is produced in the three phase induction motor.arrow_forwardHow the rotating magnetic field is produced. Explain its importance in the operation of an Induction Motors.arrow_forward
- State the types of induction motorarrow_forwarda. 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_forwardWhat are the main parts of an single phase induction motor? Explain the function of each.arrow_forward
- Which of the following statements about three-phase induction motor is false (A) The speed of rotation of the magnetic field is called the synchronous speed. (B) A three-phase supply connected to the rator produces a rotation magnetic field. (C)The rotating magnetic field has a constant speed and constant magnitude. (D) It is essentially a constant speed type machine.arrow_forwardA) Although the magnetic field for each phase of a 3-phase induction motor is merely switching back and forth between north and south poles, the resultant magnetic influence from all phases sets up a rotating magnetic field to cut the rotor conductors. a) true b) false B) In a two-pole stator winding of a 3-phase motor, how many revolutions does the rotating tr) magnetic field make in one cycle of the electrical current? a) one b) 60 c) 3600 d) none of the abovearrow_forward1. The operation of Commutator in DC Motor is * O a) to convert dc to ac O b) to convert ac to dc O c) to convert fixed dc to variable dc O reverse the current direction in the rotating windings each half turnarrow_forward
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