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Showing posts with label constant torque operation. Show all posts
Showing posts with label constant torque operation. Show all posts

21/08/2017

Speed Control of DC Motor by Solid State Devices

Basic Equation of DC Motor

Back emf  Eb = ZNP / 60A
                    = V – IaRa …….….(1)
                         OR
Speed N α Eb / Ф…................…(2)