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What is the efficiency of ATV212 drive at nominal load.

For the efficiency of ATV212 drive, it can be calculated for nominal load by using the formula:
Efficiency = (Pn - Loss) / Pn.
Pn : nominal Power.
Loss (Power dissipated at nominal load): Refer to attached document.
For ATV212HD37N4 
Power dissipated (Loss): 976 W
Pn = 37 KW
 Efficiency at 100% Load =(37000-976)/37000 = 97%
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