Functions
2.5 Distance Protection
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
174
2.5.3.3
Settings
Addresses which have an appended "A" can only be changed with DIGSI, under Additional 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
1605
T1-1phase
0.00 .. 30.00 sec;
∞
0.00 sec
T1-1phase, delay for
single phase faults
1606
T1-multi-phase
0.00 .. 30.00 sec;
∞
0.00 sec
T1multi-ph, delay for multi
phase faults
1608
Iph>(Z1)
1A
0.05 .. 20.00 A
0.20 A
Minimum current for Z1
only Iph>(Z1)
5A
0.25 .. 100.00 A
1.00 A
1615
T2-1phase
0.00 .. 30.00 sec;
∞
0.30 sec
T2-1phase, delay for
single phase faults
1616
T2-multi-phase
0.00 .. 30.00 sec;
∞
0.30 sec
T2multi-ph, delay for multi
phase faults
1617A
Trip 1pole Z2
NO
YES
NO
Single pole trip for faults in
Z2
1625
T3 DELAY
0.00 .. 30.00 sec;
∞
0.60 sec
T3 delay
1635
T4 DELAY
0.00 .. 30.00 sec;
∞
0.90 sec
T4 delay
1645
T5 DELAY
0.00 .. 30.00 sec;
∞
0.90 sec
T5 delay
1655
T1B-1phase
0.00 .. 30.00 sec;
∞
0.00 sec
T1B-1phase, delay for
single ph. faults
1656
T1B-multi-phase
0.00 .. 30.00 sec;
∞
0.00 sec
T1B-multi-ph, delay for
multi ph. faults
1657
1st AR -> Z1B
NO
YES
NO
Z1B enabled before 1st
AR (int. or ext.)
1665
T6 DELAY
0.00 .. 30.00 sec;
∞
1.50 sec
T6 delay
1701
Op. mode Z1
Forward
Reverse
Inactive
Forward
Operating mode Z1
1702
ZR(Z1)
1A
0.050 .. 200.000
Ω
2.500
Ω
ZR(Z1), Impedance Reach
5A
0.010 .. 40.000
Ω
0.500
Ω
1711
Op. mode Z2
Forward
Reverse
Inactive
Forward
Operating mode Z2
1712
ZR(Z2)
1A
0.050 .. 200.000
Ω
5.000
Ω
ZR(Z2), Impedance Reach
5A
0.010 .. 40.000
Ω
1.000
Ω
1721
Op. mode Z3
Forward
Reverse
Inactive
Reverse
Operating mode Z3
1722
ZR(Z3)
1A
0.050 .. 200.000
Ω
5.000
Ω
ZR(Z3), Impedance Reach
5A
0.010 .. 40.000
Ω
1.000
Ω
