Transfer Of Measured Values - Siemens SIPROTEC 4 Manual

Functions
2.23 Auxiliary Functions
Table 2-22
Parameter
CT PRIMARY
CT SECONDARY
Vnom PRIMARY
Vnom SECONDARY
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 .
N
The displacement voltage V
[verlagerungsspannunguen-020315-wlk, 1, en_US]
Please note that value V
The ground current Ι
[erdstrom-020315-wlk, 1, en_US]
Upon delivery, the power and operating values are set in such manner that power in line direction is positive.
Active components in line direction and inductive reactive components in line direction are also positive. The
same applies to the power factor cosϕ. It is occasionally desired to define the power drawn from the line (e.g.
as seen from the consumer) positively. Using parameter 1108 P,Q sign the signs for these components can
be inverted.
The calculation of the operational measured values is also performed during a fault. The values are updated in
intervals of > 0.3 s and < 1 s.
2.23.3.2

Transfer of Measured Values

Measured values can be transferred via the interfaces to a central control and storage unit.
The measuring range in which these values are transmitted depend on the protocol and, if necessary, addi-
tional settings.
Protocol
IEC 60870-5-103
IEC 61850
290
Legend for the conversion formulae
Address
204
205
202
203
232
233
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
Transmittable measuring range, format
0 to 240 % of the measured value.
The primary operational measured values are transmitted.
The measured values as well as their unit format are set out in detail in manual PIXIT
7SJ.
The measured values are transmitted in "Float" format. The transmitted measuring
range is not limited and corresponds to the operational measurement.
Parameter
Ignd-CT PRIM
Ignd-CT SEC
Vph / Vdelta
FullScaleVolt.
FullScaleCurr.
Ignd2-CT PRIM.
Ignd2-CT SEC.
and V and the displacement voltage
A–B B–C
E50417-G1140-C343-A8, Edition 12.2017
Address
217
218
206
1101
1102
238
239
SIPROTEC 4, 7SJ80, Manual