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Full form of VFD is _____________

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in Electric Drives by (99.8k points)
Full form of VFD is _____________

(a) Variable frequency drive

(b) Variable force drive

(c) Value frequency drive

(d) Variable force diverter

The question was posed to me during a job interview.

My question is taken from Motors Rating and Heating in chapter Rating and Heating of Motors of Electric Drives

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Right option is (a) Variable frequency drive

To explain I would say: VFD stands for variable frequency drive. It is a controller for AC or DC motors to achieve the desired speed. It can perform the four quadrant operation.

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