• News
  • Download Center
  • Product Selection
Canada
Change to Another Country
Search


Products & Services
Drives

» Home » Products & Services » Drives » Payback - VFD Calculator

Payback - VFD Calculator

The energy saving calculation results from a comparison between conventional flow and pressure control with variable speed pumps or fans (i.e. with Variable Frequency Drives).

Note: The flow rate varies with the rotation, and pressure with the square of the rotation, this means that in 70% of the rotation pressure will have a theoretical value of 50% nominal pressure.

Flow (%)Time of operation per day (in hours)Flow (%)Time of operation per day (in hours)
10050
9040
8030
7020
6010
 

Calculate

Results
Annual Savings (kWh)Annual Savings ()
Payback (months)
Print

WEG Easy
News - What's happening at WEG
Newsletter - Have News sent to you by e-Mail

© 2014 WEG. All rights reserved