hello! can anyone explain to me how a 3 speeds table fan work? what are the factors that are controlling the speed of a normal table fan? Is it by varying the voltage or changing the magnetic field? would appreciate your reply :) thx in advance.

2 Answers  

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how to increase or decrease speed in DC shunt motor by DC convertor

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how to calculation increase capacitor,increase power factor for three phase.

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what is Anti-pumping?

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What is the difference between Droop vs Isoch Control?

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What is the value of 3 phase voltage?

8 Answers   RECPDCL,

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Stator of three phase induction motor creates Rotating Magnetic field.But why not Transformer?

21 Answers  

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What is speed mode?

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hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

0 Answers  

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I have seen 1 video in which a person getting shock while standing at top of a train,i have 1 question? why the people sitting in the train doesn't get shock while that man getting shock from top of the train? How the earthing of train works?

17 Answers   Bhel,

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What is meant by coupling capacitor?

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what perpos use cepacitors in motars,fans,lights,and LT panal

1 Answers  

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