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  1. Motors / Drives

Calculating Benefits of VFD Performance

Dec. 1, 2008
The performance of variable-frequency drives (VFDs) can be compared with that of other methods of volume control quickly and simply. All that you need

The performance of variable-frequency drives (VFDs) can be compared with that of other methods of volume control quickly and simply. All that you need are:

  • Motor horsepower;

  • The alternative to VFD control (inlet guide vane, outlet damper, “ride the fan curve,” bypass damper, discharge valve, bypass valve, no control);

  • The total hours of operation per year (8,760 maximum);

  • The cost per kilowatt-hour of electricity.

Yaskawa
Shared Screenshot Yaskawa1

NOTE

1) This is only an estimate based on averages and assumptions. Additional savings, such as power-factor improvement to 0.98 and reduced demand charges, also should be considered.

Yaskawa Electric America Inc., headquartered in Waukegan, IL, is a manufacturer of HVAC variable-frequency drives and configured packages.