Functions
2.16 Backup Time Overcurrent Protection
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
315
2.16.4
Settings
The table indicates region-specific presettings. Column C (configuration) indicates the corresponding second-
ary nominal current of the current transformer.
Addr.
Parameter
C
Setting Options
Default Setting
Comments
2601
Operating Mode
ON
Only Emer. prot
OFF
ON
Operating mode
2602
SOTF Time DELAY
0.00 .. 30.00 sec
0.00 sec
Trip time delay after SOTF
2610
Iph>>
1A
0.05 .. 50.00 A;
∞
2.00 A
Iph>> Pickup
5A
0.25 .. 250.00 A;
∞
10.00 A
2611
T Iph>>
0.00 .. 30.00 sec;
∞
0.30 sec
T Iph>> Time delay
2612
3I0>> PICKUP
1A
0.05 .. 25.00 A;
∞
0.50 A
3I0>> Pickup
5A
0.25 .. 125.00 A;
∞
2.50 A
2613
T 3I0>>
0.00 .. 30.00 sec;
∞
2.00 sec
T 3I0>> Time delay
2614
I>> Telep/BI
NO
YES
YES
Instantaneous trip via Tele-
prot./BI
2615
I>> SOTF
NO
YES
NO
Instantaneous trip after
SwitchOnToFault
2620
Iph>
1A
0.05 .. 50.00 A;
∞
1.50 A
Iph> Pickup
5A
0.25 .. 250.00 A;
∞
7.50 A
2621
T Iph>
0.00 .. 30.00 sec;
∞
0.50 sec
T Iph> Time delay
2622
3I0>
1A
0.05 .. 25.00 A;
∞
0.20 A
3I0> Pickup
5A
0.25 .. 125.00 A;
∞
1.00 A
2623
T 3I0>
0.00 .. 30.00 sec;
∞
2.00 sec
T 3I0> Time delay
2624
I> Telep/BI
NO
YES
NO
Instantaneous trip via Tele-
prot./BI
2625
I> SOTF
NO
YES
NO
Instantaneous trip after
SwitchOnToFault
2630
Iph> STUB
1A
0.05 .. 50.00 A;
∞
1.50 A
Iph> STUB Pickup
5A
0.25 .. 250.00 A;
∞
7.50 A
2631
T Iph STUB
0.00 .. 30.00 sec;
∞
0.30 sec
T Iph STUB Time delay
2632
3I0> STUB
1A
0.05 .. 25.00 A;
∞
0.20 A
3I0> STUB Pickup
5A
0.25 .. 125.00 A;
∞
1.00 A
2633
T 3I0 STUB
0.00 .. 30.00 sec;
∞
2.00 sec
T 3I0 STUB Time delay
2634
I-STUB Telep/BI
NO
YES
NO
Instantaneous trip via Tele-
prot./BI
2635
I-STUB SOTF
NO
YES
NO
Instantaneous trip after
SwitchOnToFault
2640
Ip>
1A
0.10 .. 4.00 A;
∞
∞
A
Ip> Pickup
5A
0.50 .. 20.00 A;
∞
∞
A
2642
T Ip Time Dial
0.05 .. 3.00 sec;
∞
0.50 sec
T Ip Time Dial