Application And Setting Notes - Siemens SIPROTEC 5 Manual

Resetting the LED Group
Using the Reset the LED group function, you can reset the stored LEDs of the functions in one specific func-
tion group while the activated, stored LEDs of other functions in other function groups remain activated.
Operational Measured Values
The operational measured values are always present in the Voltage-current 3-phase function group and
cannot be removed.
The following table shows the operational measured values of the Voltage-current 3-phase function group:
Table 6-3
Measured Values
I , I , I Phase currents
A B C
3I0 Calculated zero-sequence current
I Neutral-point phase current
N
I Sensitive ground current
NS
V , V , V Phase-to-ground voltages
A B C
V , V , V Phase-to-phase voltages
AB BC CA
V Zero-sequence voltage
0
V Neutral-point displacement
NG
voltage
f Frequency
P Active power
total
(total power)
Q Reactive power
total
(total power)
S Apparent power
total
(total power)
Cos φ Active power factor
P , P , P Phase-related active power
A B C
Q , Q , Q Phase-related reactive power
A B C
S , S , S Phase-related apparent power
A B C
The operational measured values are explained in more detail in chapter

Application and Setting Notes

6.3.3
Parameter: Rated current
•
Default setting (_:9451:101) Rated current = 1000 A
The Rated current parameter is used to set the primary rated current. The Rated current specified
here is the reference value for the percentage-measured values and setting values made in percentages.
If the device works with the IEC 61850 protocol, then you change only the setting value of the parameter via
DIGSI 5 and not directly on the device. If you change the setting value directly on the device, then the
IEC 61850 configuration of the metered values can be faulty.
SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017
Operational Measured Values of the Voltage-Current 3-Phase Function Group
Primary Secon-
A
A
A
A
kV
kV
kV
kV
Hz
MW
Mvar
MVA
(abs)
MW
Mvar
MVA
6.3 Function-Group Type Voltage/current 3-Phase
% Referenced to
dary
A Rated operating current of the primary values
A Rated operating current of the primary values
A Rated operating current of the primary values
mA Rated operating current of the primary values
V Operating rated voltage of primary values/√3
V Rated operating voltage of the primary values
V Operating rated voltage of primary values/√3
V Operating rated voltage of primary values/√3
Hz Rated frequency
W Active power of the primary values
√3 · V · I
rated rated
var Reactive power of the primary values
√3 · V · I
rated rated
VA Apparent power of the primary values
√3 · V · I
rated rated
(abs) 100 % corresponds to cos φ = 1
W Active power of the phase
V · I
rated phsx rated phsx
var Reactive power of the phase
V · I
rated phsx rated phsx
VA Apparent power of the phase
V · I
rated phsx rated phsx
9.3 Operational Measured
Function-Group Types
Values.
149