Answer / sandeep vazhoor

VVVF drive(also called VVVF Inverter) is a power electronic
controller used to control the speed of 3 phase AC Motors
(synchronous or induction) by varying the frequency and
voltage applied to the motor terminals. Voltage and
frequency relationship is decided based on the motor name
plate data and the load characteristics.

Advantages of VVVF Drives are –

a) Stepless speed can be achieved which is required in
process control.

b) Energy Saving.

c) Improvement in productivity.

d) Process improvement and better quality of the product.

Answer / sunil patwal

VVVF Drive meaning is Variable Voltage Variable frequency
drive. It is used to three phase induction motor and some
type of single phase motor can be used. It is used to
variable speed in Same voltage. It is change the motor
frequency in constant voltage.

Answer / sabyasachi sejpada

It is changed the equally voltage & frequency

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