Functions
2.26 Additional Functions
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
483
2.26.10 Set Points (Measured Values)
SIPROTEC 4 devices allow thresholds (set points) to be set for some measured and metered values. If one of
these set points is reached or is exceeded positively or negatively during operation, the device generates an
alarm which is displayed as an operational indication. This can be configured to LEDs and/or binary outputs,
transferred via the interfaces and interconnected in DIGSI CFC. In addition you can use DIGSI CFC to config-
ure set points for further measured and metered values and configure these via the DIGSI device matrix.
In contrast to the actual protection functions the limit value monitoring function operates in the background;
therefore it may not pick up if measured values are changed spontaneously in the event of a fault and if pro-
tection functions are picked up. Furthermore, since an indication is only issued when the set point limit is re-
peatedly exceeded, the limit value monitoring functions do not react as fast as protection functions trip signals.
867
UL12Max=
MVT
U L12 Maximum
868
UL23Min=
MVT
U L23 Minimum
869
UL23Max=
MVT
U L23 Maximum
870
UL31Min=
MVT
U L31 Minimum
871
UL31Max=
MVT
U L31 Maximum
874
U1 Min =
MVT
U1 (positive sequence) Voltage Minimum
875
U1 Max =
MVT
U1 (positive sequence) Voltage Maximum
880
SMin=
MVT
Apparent Power Minimum
881
SMax=
MVT
Apparent Power Maximum
882
fMin=
MVT
Frequency Minimum
883
fMax=
MVT
Frequency Maximum
1040
Pmin Forw=
MVT
Active Power Minimum Forward
1041
Pmax Forw=
MVT
Active Power Maximum Forward
1042
Pmin Rev =
MVT
Active Power Minimum Reverse
1043
Pmax Rev =
MVT
Active Power Maximum Reverse
1044
Qmin Forw=
MVT
Reactive Power Minimum Forward
1045
Qmax Forw=
MVT
Reactive Power Maximum Forward
1046
Qmin Rev =
MVT
Reactive Power Minimum Reverse
1047
Qmax Rev =
MVT
Reactive Power Maximum Reverse
1048
PFminForw=
MVT
Power Factor Minimum Forward
1049
PFmaxForw=
MVT
Power Factor Maximum Forward
1050
PFmin Rev=
MVT
Power Factor Minimum Reverse
1051
PFmax Rev=
MVT
Power Factor Maximum Reverse
10102
3U0min =
MVT
Min. Zero Sequence Voltage 3U0
10103
3U0max =
MVT
Max. Zero Sequence Voltage 3U0
No.
Information
Type of In-
formation
Comments