Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Textbook Question
Chapter 8, Problem 6SQ
Why will the blowout coil also operate on AC?
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Explain the operation of the blowout coil used in dc contactors
Chapter 8 Solutions
Electric Motor Control
Ch. 8 - Prob. 1SQCh. 8 - What is the principal difference between a...Ch. 8 - What causes the arc to move upward in a blowout...Ch. 8 - Why is it desirable to extinguish the arc as...Ch. 8 - Prob. 5SQCh. 8 - Why will the blowout coil also operate on AC?Ch. 8 - Prob. 7SQCh. 8 - Are ON control stations used in multiple locations...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Differentiate between the AC and DC magnetic fields applied to an induction motor stator.arrow_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_forwardDo you What is Induction motor?arrow_forward
- Q2: b- Explain how does the three- phase induction motor work? *arrow_forwardAppliances in home that use DC motor and briefly explain why it works as reverse DC generatorarrow_forwardThe single - phase ac voltage controller with inductive load. Plot the waveform of output voltage and voltage in each thyristor if the B = 10 %3D degree and delay angle (alpha) in both thyristor is 1- (30 degrees) 2- (90 degrees) 3- (120 degrees)arrow_forward
- Answer is 2.93 hz. Take No. Of poles = 2.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_forwardDifference in lap and wave winding.arrow_forward
- A triplex wave-wound armature is used in a 6-pole DC machine. The number of coils is 111 each of which contains 12 turns. The resistance of each turn is 0.0112. Its flux per pole is 0.038 Wb, and its rotational speed is 230 rpm Calculate the number of conductors in the machine Calculate the the number of current paths in the machine Calculate the constant K'arrow_forwardQ2. A 4-pole, wave-wound armature has 72 slots with two coil-sides per slot, each coil has four turns. If the flux per pole is 20 mWb and the armature rotates at 720 rpm, what is the induced emf across the armature? (Ans. 276.48 V) 0.05arrow_forwardQ choose the correct answer: 1-Brushless excitation system consisting of.... a- Stator field winding and power diodes b-stator and rotor field winding and capacitor c- stator and rotor field winding and capacitor d- Everything mentioned in the options 2- Voltage generated per phase in an alternator is proportional to a- Flux per pole b- Number of turns in armature c-Winding factors d- Everything mentioned in the options e- Frequency of waveform 3- If input mech. Power of SG constant, the functionality of AVR is a- Control flux of rotor b-Control terminal voltage c- Control flux and terminal voltage d-Control Load anglearrow_forward
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