Measured Values Grid Coupling Transformer
Measured Value Description Primary Secondary % Referenced to
Vact.w1
Actual voltage of winding 1 kV V Target voltage of the primary
system referenced to the rated
voltage
Vact.w2
Actual voltage of winding 2 kV V Target voltage of the primary
system referenced to the rated
voltage
ΔV act.
Voltage difference between
the target voltage and the
actual voltage
kV V Voltage difference referenced
to the rated voltage of the
controlled winding
I load w1
Load current of winding 1 A A Load current referenced to the
rated current of winding 1
I load w2
Load current of winding 2 A A Load current referenced to the
rated current of winding 2
Vmax 1
Maximum voltage of winding 1 kV V Maximum voltage of winding 1
referenced to the rated voltage
of winding 1
Vmax 2
Maximum voltage of winding 2 kV V Maximum voltage of winding 2
referenced to the rated voltage
of winding 2
Vmin 1
Minimum voltage of winding 1 kV V Minimum voltage of winding 1
referenced to rated voltage of
winding 1
Vmin 2
Minimum voltage of winding 2 kV V Minimum voltage of winding 2
referenced to rated voltage of
winding 2
V tar.w1
Target voltage of winding 1 kV V Target voltage of winding 1
referenced to the rated voltage
of winding 1
V tar.w2
Target voltage of winding 2 kV V Target voltage of winding 2
referenced to the rated voltage
of winding 2
The functional measured values Vmax 1, Vmax 2, Vmin 1 and Vmin 2 can be reset with the input indication
>Reset min./max.
.
For the grid coupling transformer, you can find the measured values under the following menu items of the
device:
•
Main menu → Measurements → Voltage control gc → 90V V.contr.gc
•
Main menu → Measurements → Voltage control gc → Statistics → 90V V.contr.gc
Fundamental Values and Power Measured Values
The fundamental values and power measured values are always present in the function groups Two-winding
transformer voltage controller, Three-winding transformer voltage controller, and Grid coupling trans-
former voltage controller . Furthermore, you can find the fundamental values and power measured values
for winding 1 and winding 2 in the function groups Three-winding transformer voltage controller and Grid
coupling transformer voltage controller. These values cannot be deleted.
In case a 3-phase voltage measuring point is also connected, Table 8-28 and Table 8-29 show the total scope.
Control Functions
8.9 Voltage Controller
SIPROTEC 5, Overcurrent Protection, Manual 1211
C53000-G5040-C017-8, Edition 07.2017
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