Today, energy saving concepts are being applied at everywhere due energy crises.
Now someone claimed that if we replace the DOL or start delta starter with soft starter, it will save the energy as when we start the motor via DOL or SD, it draws 600-800% current and SS reduces that starting current. But i think replacing SS would not save much energy and pay back period would be very long. If starting current is increased by DOL or SD then power factor of motor also drops in that starting period. So the starting torque and real power is not much higher.
What are your comments?