vvvf igbt
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A variable-frequency drive ( VFD, or adjustable-frequency drive, adjustable-speed drive, variable-speed drive, AC drive, micro drive, inverter drive, or drive) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the frequency of the input electricity. asam beta hidroksi propionat Depending on its topology, it controls the . asam beta hidroksi propionat
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