The capacitor commonly used for ceiling fan motors has a value of 2.3 μF. The type of capacitor is used __________.

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SSC JE EE Previous Year Paper 16 (Held On: 3 March 2017 Morning)

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Answer 1

The single-phase induction motor is not self-starting. Hence, it requires an auxiliary means or equipment to start the motor.
Mechanical methods are impractical and, therefore the motor is started temporarily converting it into the two-phase motor.
Commonly used starting methods for a ceiling fan is a permanent capacitor or single value capacitor motor.
The permanent capacitor motor also has a cage rotor and the two windings named as main and auxiliary windings.
The capacitor C is permanently connected in the circuit both at the starting and the running conditions.
It is also called as a single value capacitor motor as the capacitor is always connected in the circuit.
A paper capacitor is used in the permanent capacitor motor as an electrolytic capacitor cannot be used for the continuous running operation of the ceiling fan.
The cost of the paper capacitor is higher, and the size is also large as compared to the electrolytic capacitor of the same ratings.