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What is VFD ?
A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are variable speed drive adjustable speed drive adjustable frequency drive AC drive micro drive and inverter.
Variable Frequency Drive Working Principle
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the basic working principle is adjusting the electrical supply to an AC motor with a corresponding frequency and voltage change in the motor's speed and torque output.