Difference between an Electronic regulator and ordinary rheostat regulator

By Bharat Ribadiya -
The difference between the electronic and ordinary regulator is that in electronic regulator power losses are less because as we decrease the speed the electronic regulator gives the power needed for that particular speed.  But in the case of ordinary rheostat type regulator, the power wastage is same for every speed and no power is saved. 

 In electronic regulator, TRIAC is employed for speed control. by varying the firing angle speed is controlled but in rheostat control resistance is decreased by steps to achieve speed control.

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