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  • Users: mjcandlec
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  1. mjcandlec

    VFD's - Variable or Constant Torque

    I have 25hp fans running 50% of the time at 60 Hz, near FLA and RPM for the motor, given the fixed prop pitch and static pressure, and 50% of the time at about 30 Hz. I am using ABB vfd's rated @ 25Hp VT. Should this be a constant torque application? Thanks for any input to clear this up.

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