Siemens 7SK80 - Settings

Functions
2.10 Monitoring Functions
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A5, Release date 11.2012
176
Note
The setting under address 5310 BLOCK PROT. has no effect on the flexible protection functions. A separate
blocking can be selected for that purpose.
The function may be disabled in address 5301 FUSE FAIL MON., e.g. when performing asymmetrical tests.
2.10.1.8 Settings
Addresses which have an appended "A" can only be changed with DIGSI, under "Display Additional Settings".
The table indicates region-specific default settings. Column C (configuration) indicates the corresponding sec-
ondary nominal current of the current transformer.
Addr. Parameter C Setting Options Default Setting Comments
5201 VT BROKEN WIRE ON
OFF
OFF VT broken wire supervi-
sion
5202 Σ V> 1.0 .. 100.0 V 8.0 V Threshold voltage sum
5203 Vph-ph max< 1.0 .. 100.0 V 16.0 V Maximum phase to phase
voltage
5204 Vph-ph min< 1.0 .. 100.0 V 16.0 V Minimum phase to phase
voltage
5205 Vph-ph max-min> 10.0 .. 200.0 V 16.0 V Symmetry phase to phase
voltages
5206 I min> 1A 0.04 .. 1.00 A 0.04 A Minimum line current
5A 0.20 .. 5.00 A 0.20 A
5208 T DELAY ALARM 0.00 .. 32.00 sec 1.25 sec Alarm delay time
5301 FUSE FAIL MON. OFF
Solid grounded
Coil.gnd./isol.
OFF Fuse Fail Monitor
5302 FUSE FAIL 3Vo 10 .. 100 V 30 V Zero Sequence Voltage
5303 FUSE FAIL RESID 1A 0.10 .. 1.00 A 0.10 A Residual Current
5A 0.50 .. 5.00 A 0.50 A
5308A FFM Idiff (3ph) 1A 0.05 .. 1.00 A 0.10 A Differential Current
Threshold (3phase)
5A 0.25 .. 5.00 A 0.50 A
5310 BLOCK PROT. NO
YES
YES Block protection by FFM
8101 MEASURE. SUPERV OFF
ON
ON Measurement Supervision
8102 BALANCE V-LIMIT 10 .. 100 V 50 V Voltage Threshold for
Balance Monitoring
8103 BAL. FACTOR V 0.58 .. 0.90 0.75 Balance Factor for Voltage
Monitor
8104 BALANCE I LIMIT 1A 0.10 .. 1.00 A 0.50 A Current Threshold for
Balance Monitoring
5A 0.50 .. 5.00 A 2.50 A