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How do you calculate the ATV312 drives efficiency?

FA130614

28 September 2021

Issue:
Efficiency calculation on ATV312

Product Line:
Altivar ATV312

Environment:
All

Cause:
Efficiency ratings for the ATV312 drives

Resolution:
KW / (KW + Watts Loss) = Efficiency at rated load.
e.g. 2000 \ (2000 + 123) = 94.7% for the ATV312HU22M2.