Siemens 7SC80 Manual page 589

Protection functions
SNTP server functionality (no protec-
tion) 2) 5)
RTU functionality 2)
1) 3, 4, or 6 (voltage transformer) is required at MLFB position 7
2) Only with MLFB position 16 = 0
3) 87N (REF) only available for sensitive ground current input (position 7 = 5 or 6)
4) depending on the ground current input at position 7, the function operates either as ground fault protection
(sensitive input) or as ground short-circuit protection (normal Ie input)
5) 7 is required at MLFB position 12
6) 1, 2, or 5 is required at MLFB position 7
7) 3 is required at MLFB position 8
8) B, C, E, or G is required at MLFB position 10
Additional functions
1) MLFB position 7 must be a 3, 4, or 6 (voltage transformer)
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017
60VTS S2 Voltage transformer monitoring Side 2
81 U/O Underfrequency/Overfrequency (f<, f>)
81 U/O S2 Underfrequency/Overfrequency Side 2 (f<, f>)
25 Synchrocheck
51V Voltage-controlled inverse time overcurrent protection
47NPS Negative-sequence overvoltage protection
32/55/81R Flexible protection functions (parameters from current
and voltage): Voltage, power, power factor, frequency
change protection
— Monitoring functions
50/51
Time overcurrent protection phase 50-1
50N/51N
Ground fault protection 50N-1
67
Directional overcurrent protection phase 67-1
67N
Directional overcurrent protection ground 67N-1
81HBL2 Inrush restraint
— Tap changer
Recloser Capacitor test
Capacitor control
Battery voltage monitor
Monitoring functions
Sectionalizer
without
79 with automatic reclosing (AR)
21FL
With fault locator
79/21FL
With 79 and fault locator
79 with automatic reclosing function (AR) and 3-/1-pole
operation
79/21FL with automatic reclosing function (AR), fault locator,
and 3-/1-pole operation
Ordering Information and Accessories
A.2 Ordering Information 7SC803
6)
6)
7)
1)
1)
1)
Pos. 15
N
R
1)
1)
Pos. 16
0
1
2
3
4
5
589