Siemens SIPROTEC User Manual

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

Siemens SIPROTEC Specifications

General

Brand	Siemens
Model	SIPROTEC
Category	Protection Device
Language	English