What is basic difference between Soft Starters And VFD
drives?
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Answer Posted / pinias munyongani j
VFD is used to vary the speed of the motor through varying
frequency. Where as a soft starter is used to smoothly
start up a motor. How ever VFDs can also achive smooth
start ups if the ramp up and ramp down times are increased.
Probably the main reason for using the soft starter is that
the cost is relatively lower than that of a VFD.
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