Frequently asked questions
How is the Accumulated Power Consumption (APH) calculated on the ATV61 and ATV71 drives?
FA175829
02 November 2022
Issue:
ATV61 and ATV71 Accumulated Power Consumption (APH) calculated.
Product Line:
Altivar ATV61 and ATV71
ATV61 and ATV71 Accumulated Power Consumption (APH) calculated.
Product Line:
Altivar ATV61 and ATV71
Environment:
All
All
Cause:
Accumulated Power Consumption (APH)
Accumulated Power Consumption (APH)
Resolution:
The APH is calculated regarding motor electrical consumption measured by the drive to supply the motor ( motor current, motor voltage) so it includes mechanical losses.
The drive does not measure reactive power making the precision of the APH about 10%. The losses of the VSD are insignificant regarding this accuracy.
Please note it is not recommended to use the consumption power measurement APH for electrical billing for instance.
The APH is calculated regarding motor electrical consumption measured by the drive to supply the motor ( motor current, motor voltage) so it includes mechanical losses.
The drive does not measure reactive power making the precision of the APH about 10%. The losses of the VSD are insignificant regarding this accuracy.
Please note it is not recommended to use the consumption power measurement APH for electrical billing for instance.