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Functions
2.20 Auxiliary Functions
Measured
second-
values
ary
V
V
x
x sec.
P, Q, S (P and Q
No secondary measured values
phase-segregat-
ed)
cos ϕ
Power factor
(phase-segre-
gated)
Frequency
f in Hz
Table 2-21
Parameter
Vnom PRIMARY
Vnom SECONDARY
CT PRIMARY
CT SECONDARY
Vph / Vdelta
VXnom PRIMARY
VXnom SECONDARY
Depending on the type of device ordered and the device connections, some of the operational measured values
listed below may not be available. The phase–to–Ground voltages are either measured directly, if the voltage
inputs are connected phase–to–Ground, or they are calculated from the phase–to–phase voltages V
V
and the displacement voltage V
B–C
The displacement voltage V
Please note that value V
The ground current I
274
primary
cos ϕ
f in Hz
Legend for the conversion formulae
Address
202
203
204
205
206
232
233
.
N
is either measured directly or calculated from the phase-to-Ground voltages:
N
is indicated in the operational measured values.
0
is either measured directly or calculated from the conductor currents.
N
cos ϕ · 100 in %
Parameter
Ignd-CT PRIM
Ignd-CT SEC
Ignd2-CT PRIM.
Ignd2-CT SEC.
FullScaleVolt.
FullScaleCurr.
E50417-G1140-C344-A5, Release date 11.2012
%
Address
217
218
238
239
1101
1102
and
A–B
SIPROTEC, 7SK80, Manual
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