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Question
what is the principle of synchronous motors?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
when ever a current carrying capacitor is placed in a
magnetic field torque is induced to rotate.
 
Is This Answer Correct ?    1 Yes 0 No
Rk
 
Answer
# 2
the speed of synchronous motor are content in full load. 
Is This Answer Correct ?    1 Yes 2 No
Dharmendra Vegda
 
 
 
Answer
# 3
advantage
*conductor cost is low.bulk power can transmit 1 or 2 wire
system.
*not affect communication lines
disadvantage
*complicate to design the filter
 
Is This Answer Correct ?    0 Yes 7 No
Hari
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
what is power factor in ac ckt ?   4
what's float charger and boost charger? why it's used? Rolls-Royce 2
what is excitation system explain in detail with its working? Toshiba 1
Which formation is better in transmission lines - horizontal or triangular and why ?   2
why battery is connected in series? HP 10
Why dnt we generate 5-ph or 7-ph supply like as 3-ph supply   2
WE HAVE A PROBLEM THAT THE MAIN DRIVE OF OUR CEMENT MILL HAS AN EARTHING PROBLEM?TWO OF STATOR WINDINGS INSULATION HAS BEEN COLLAPSED DUE TO AGING PROBLEM.THE PHASES HAVE BEEN BYPASSED AND NOW THE LOAD HAS BEEN INCREASED.WE CAN'T REPLACE THE MOTOR.KINDLY HELP ME BY GIVING SUGGESTION THAT HOW TO MAINTAIN THE STARTING TORQUE AND CURRENT FOR HIGH LOADS. ACC 1
A synchronous motor is operating at a leading power factor .if the applied voltage is decreases ,(the excitation remains constant ) ,the motor current a)increases b) decreases c)remains same d) none of these   2
Why generally the Rating of Transformers are in additions of 11 i.e. 11 kVA, 22 kVa, 33 kVA, etc........   8
what is the frequency standard with tolerance level for India?   15
what happen when generator neutral supply and transformer neutral supply linked   3
what is the difference between inductive load and capacitive load?give me some examples in general   2
 
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