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Q.

What is the role of capacitor in a ceiling fan circuit?

Asked by Rajan CV, 27 Mar '09 06:17 pm
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Answers (7)

1.

The ceiling fan motor consists of a starting and running winding. The capacitor is usually connected in series with the starting winding to give the unit enough starting torque. If the capacitor gets busted, the fan will not rotate.
The capacitor is used in an inductor-capacitor circuit to shift the phase on the single phase power going into the AC motor, causing high torque used for starting. Once it is up to speed, it switches off this circuit and runs on the low power low torque running windings of the motor.
Answered by Kishenjit Sinha, 27 Mar '09 06:22 pm

 
  
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2.

The capacitor splits the phase in a single phase ceiling fan to provide starting torque when it is switched on.
Answered by ceasium, 27 Mar '09 06:23 pm

 
  
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3.

Capacitor usually stores the energy
Answered by dude, 29 Mar '09 08:46 pm

 
  
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4.

Capacitor is of running type startin winding remainsin circuit capacitor generate
high voltage in starting winding gives a torque with run windiung & motor takesstart
in operation capacitor maintain constant voltage to motor
hi
Answered by pramod gokhale, 28 Mar '09 06:50 pm

 
  
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5.

There are two windings whih get pwer in tandon capacitor helps that dicvidng process
Answered by Dinesh C S, 27 Mar '09 09:54 pm

 
  
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6.

In a ceiling fan there is an single phase induction motor. Single phase stator produces a non rotating, pulsating magnetic field.The single coil excited by a single phase current produces two counter rotating magnetic field phases, coinciding twice per revolution at 0 degrees and 180 degrees. When the phases rotate to 90 degree and -90 degree they cancel. At 45 deg and -45 deg they are partially additive along the +x axis and cancel along the y axis. The sum of these two phases is a phasor stationary in space, but alternating polarity in time. Thus, no starting torque is developed.
So, in order to generate the starting torque we have to split the phase in two. This configuration comprises two windings main winding W1 and auxiliary winding W2, a centrifugal switch SW1 and a capacitor.
The two windings are wound with a geometric offset, effectively making a second set of poles phase shifted within the stator. The capacitor provides a phase shift to the current flowing in W1 and we the ...more
Answered by Naresh Swain, 27 Mar '09 06:19 pm

 
  
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7.

For fan speed control
Answered by nataszah, 27 Mar '09 06:18 pm

 
  
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