Functions
2.1 General
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
43
124 HS/SOTF-O/C Disabled
Enabled
Disabled Instantaneous HighSpeed/SOTF
Overcurrent
125 Weak Infeed Disabled
Enabled
Logic no. 2
Disabled Weak Infeed (Trip and/or Echo)
126 Back-Up O/C Disabled
TOC IEC
TOC ANSI
TOC IEC Backup overcurrent
130 Sens. Earth Flt Disabled
Enabled
Disabled Sensitive Earth Flt.(comp/ isol.
starp.)
131 Earth Fault O/C Disabled
TOC IEC
TOC ANSI
TOC Logarithm.
Definite Time
U0 inverse
Sr inverse
Disabled Earth fault overcurrent
132 Teleprot. E/F Dir.Comp.Pickup
UNBLOCKING
BLOCKING
Disabled
Disabled Teleprotection for Earth fault over-
curr.
133 Auto Reclose 1 AR-cycle
2 AR-cycles
3 AR-cycles
4 AR-cycles
5 AR-cycles
6 AR-cycles
7 AR-cycles
8 AR-cycles
ADT
Disabled
Disabled Auto-Reclose Function
134 AR control mode Pickup w/ Tact
Pickup w/o Tact
Trip w/ Tact
Trip w/o Tact
Trip w/o Tact Auto-Reclose control mode
135 Synchro-Check Disabled
Enabled
Disabled Synchronism and Voltage Check
136 FREQUENCY Prot. Disabled
Enabled
Disabled Over / Underfrequency Protection
137 U/O VOLTAGE Disabled
Enabled
Enabl. w. comp.
Disabled Under / Overvoltage Protection
138 Fault Locator Disabled
Enabled
with BCD-output
Disabled Fault Locator
139 BREAKER FAILURE Disabled
Enabled
enabled w/ 3I0>
Disabled Breaker Failure Protection
140 Trip Cir. Sup. Disabled
1 trip circuit
2 trip circuits
3 trip circuits
Disabled Trip Circuit Supervision
141 REF PROT. Disabled
Enabled
Disabled Restricted earth fault protection
Addr. Parameter Setting Options Default Setting Comments