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Decentral Solutions
at a low level to avoid overload of the transformer
and high temperature in the cables.
Some of the harmonic currents might disturb
communication equipment connected to the same
transformer or cause resonance in connection with
power-factor correction batteries.
Power factor
The power factor (Pf) is the relation between I
and I
.
1
RMS
The power factor for 3-phase supply:
The power factor indicates the extent to which
the variable frequency drive imposes a load on the
electrical supply. The lower the power factor, the
higher the I
for the same HP (kW) performance.
RMS
In addition, a high power factor indicates that the
different harmonic currents are low.
MG.90.F2.22 - VLT is a registered Danfoss trademark
184
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