What does VVVF stands for in VVVF drive ?
How does it differ from VVF drive?
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Answer Posted / ravi - cement plant india
there is no drive like vvf . there is only VVVf drive are
posible in ac system.
IF we change only voltage ( no change in fq.) the generated
flux will be disturbed and can damage the insulation of
motor wdg, by overheating
VVF are short name of VVVF Drive
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