Application And Setting Notes - Siemens 7SJ82 Manual

Function-Group Types
5.2 Function-Group Type Voltage/current 1-Phase
Operational Measured Values
The operational measured values are not preconfigured in the Voltage-current 1-phase function group. You
can instantiate them in the function group or delete them from the function group. You can find the opera-
tional measured values in the DIGSI library, in the folder FG Voltage-current 1-phase under Measurements
→ Operational values.
[scui1pom, 1, en_US]
Figure 5-9
Table 5-3
Measured Values
I 1-phase current
1-phase voltage
V 12
Residual Voltage
V 13
N
Zero-sequence voltage
V 14
0
f Frequency
P Active power
Q Reactive power
You can find the parameters Rated operating current, Rated operating voltage, and Rated
apparent power in the General function block of the Voltage-current 1-phase function group. You can
find the parameter Rated frequency in the General function block of the Device settings.
NOTE
i
i
The frequency can be calculated from the voltage or current measured value.
The active and reactive power are only displayed if the voltage and the 1-phase current are connected to
the function group. If the connected voltage is a phase-to-ground voltage (VA, VB, VC) or any voltage Vx,
the specific power values are displayed. Otherwise the power is displayed as not available.
5.2.3

Application and Setting Notes

NOTE
i
i
Prior to creation of the protection functions in the function group, these functions should first be
connected to the appropriateCircuit-breaker function group.
12 V is only visible if it is connected to a 1-phase voltage measuring point.
13 VN is only visible if it is connected to a 3-phase voltage measuring point of the type 3 ph-to-gnd volt. + VN or 3 ph-to-ph volt. + VN.
14 V0 is only visible if it is connected to a 3-phase voltage measuring point of the type 3 ph-to-gnd voltages.
206
Operational Measured Values
Operational Measured Values of the Voltage-Current 1-Phase Function Group
Primary
A
kV
kV
kV
Hz
MW
Mvar
Secondary % Referring to
A Parameter Rated operating current
V Parameter Rated operating voltage
V Parameter Rated operating
voltage/√3
V Parameter Rated operating
voltage/√3
Hz Parameter Rated frequency
W Parameter Rated apparent power
var Parameter Rated apparent power
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017