World Science and Technology – 15

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15. What does VVVF stand for?

(a) Variant Voltage Vile Frequency
(b) Variable Velocity Variable Fun
(c) Very Very Vicious Frequency
(d) Variable Voltage Variable Frequency

Answer
Answer : (d)
Explanation
Explanation : It is a method of controlling the speed of an AC induction motor, whereby speed, current and torque can all be accurately controlled.
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