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Q : Does INVT medium voltage VFD (MVD) need input and output filter? If no need, please expain the reason?
A: The INVT MVD don't need input and output filter.
Because INVT MVD use shiffting transformer and multi-level output principle,it can counteract below 50th odd harmonic so the VFD input and output harmnic is low(THD less than 4%), input power factor is high (>0.97)and output du/dt is low,so it don't need input and output filter.
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