A variable frequency drive datasheet has current parameters named as I2N and I2hd. If Im not mistaken these currents are the per line currents for the drive output as follows where I showed in red color below:
If that is correct the following information makes me confused:
For the yellow encircled VFD nominal power PN above is given as 5.5kW.
But if I use the nominal current and voltage I dont calculate the power as 5.5kW. I calculate as:
PN = sqrt(3)x I x U = 1.73 x 11.9A x 380V = 7.8kW
Is that difference because they are also multiplying with an estimate power factor or is 380V line voltage is wrong? Where am I thinking/knowing wrong?