Danfoss VLT HVAC

I
RMS
= I
1
2
+
I
5
2
+
I
7
2
+ . . +
I
n
2
In addition, a high power factor indicates that the different harmonic currents are low.
The frequency converters' built-in DC coils produce a high power factor, which minimizes the imposed load on the mains supply.
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HVAC Drive Design Guide
10 MG.11.B9.02 - VLT
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