8 Operation
Maschinenfabrik Reinhausen GmbH 2020
173
3587317/21 EN
TAPCON
®
8.16 Line drop compensation
You can use the compensation function to compensate for the load-depen-
dent voltage drop between the transformer and consumer. The device pro-
vides 2 methods of compensation for this purpose:
▪ R&X compensation
▪ Z compensation
8.16.1 R&X compensation
R&X compensation can compensate for voltage losses on the lines and
therefore ensure correct voltage on the consumer. This requires precise line
data. After you have entered all of the line data, the device automatically cal-
culates the ohmic and inductive voltage drop and takes this into account for
automatic voltage regulation.
U
Tr
VT
CT
U
Line-Drop
U
Load
U
I
R
X
Figure 117: Equivalent circuit of R&X compensation
Figure 118: Phasor diagram of R&X compensation
To use R&X compensation, you have to enter the following line data:
▪ Ohmic resistance load in mΩ/m
▪ Inductive resistance load in mΩ/m
▪ Length of line in km
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