MR ECOTAP VPD CONTROL PRO Operating Instructions Manual page 94

8 Operation
Note the description below for configuration of line drop compensation.
8.7.1 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.
Figure 62: Equivalent circuit of R&X compensation
Figure 63: 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
Selecting R&X compensation
To select R&X compensation, proceed as follows:
1. Go to Settings > Parameters > Compensation > Compensation
method.
2. Select R&X compensation option.
3. Press the Accept button to save the modified parameter.
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94 ECOTAP VPD CONTROL PRO 5252433/02 EN Maschinenfabrik Reinhausen GmbH 2018