Measured Values, Two-Winding Transformer
Measured Value Description Primary Secondary % Referenced to
V act.
Current, measured positive-
sequence voltage (referenced
to phase-to-phase)
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
% % Voltage difference referenced
to the rated voltage of the
controlled winding
I load
Current measured load current
(positive-sequence system)
A A Load current referenced to the
rated value of the function
V max
Maximum positive-sequence
voltage ever measured (refer-
enced to phase-to-phase)
kV V Maximum voltage of the
winding referenced to the
rated voltage of the winding
V min
Minimum positive-sequence
voltage ever measured (refer-
ence to phase-to-phase)
kV V Minimum voltage of the
winding referenced to the
rated voltage of the winding
V target
Calculated target voltage with
consideration of Z compensa-
tion
kV V Target voltage of the winding
referenced to the rated voltage
of the winding
PhAng
Phase angle of the currently
measured load current
° ° -
I load Σ
Sum of the currently measured
load currents. Active when line
compensation is activated.
A A Load current referenced to the
rated current of the function
I circul.
Currently measured circulating
reactive current
A A Circulating reactive current
Vact.m
Currently measured control
voltage
kV V Current voltage of the control
referenced to the rated voltage
of the function
ΔVactV
Voltage difference % % Voltage difference referenced
to the rated voltage of the
function
ΔVactC
Voltage difference % % Voltage difference referenced
to the rated voltage of the
function
The function measured values V max and V min can be reset with the input indication
>Reset min./max.
.
For the two-winding transformer, you can find the measured values under the following menu entries of the
device:
•
Main menu → Measurements → Voltage control 2w → 90V V.contr.2w
•
Main menu → Measurements → Voltage control 2w → Statistics → 90V V.contr.2w
Measured Values for Parallel Control, Proxy
Measured Value
Description Primary Secondary % Referenced to
V act.
Actual voltage of winding kV V Target voltage of the primary
system referenced to the rated
voltage of the function
1/X trf.
Susceptance, internal value for
GOOSE transmission
1/Ω
I load
Load current A - Load current referenced to the
rated current of the function
Control Functions
6.9 Voltage Controller
SIPROTEC 5, High-Voltage Bay Controller, Manual 485
C53000-G5040-C015-9, Edition 11.2017
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