Tuesday, March 10, 2020

How to Select Capacitor For Single Phase Motor

How to Select Capacitor For Single Phase Motor

Example: Ceiling Fan Motor

Let, P= 75 W
       V=220 V
       Ƞ=80%
       f =50Hz
Capacitor(C)=?

 We Know, 
 Capacitor(C)=P x Ƞ x 1000/ (220)2 x HZ
           =75 x 80 x1000/(220)2 x 50
           =2.47 uf

So , Need 2.5 uf Capacitor 

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