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HOW to speed control of induction mototr using scalar control
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Answer Posted / g senthilkumaran
Using scalar control, also called "volts per hertz" control
or v/f control, a drive essentially acts as a power supply
of a selected frequency and proportional voltage. At a
given speed, the motor performs much as it would when
supplied by utility power. For each frequency setting,
motor operation is governed by a torque Vs speed curve that
is similar to the torque Vs speed curve that governs
utility power operation.
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