Siemens 7SG11 Manual page 240

BUSBARS
A B C
Direction of power flow in
the forward direction
P1
P1 P1
S1 S1 S1
S2 S2 S2
P2 P2 P2
P1
S1
S2
P2
A
C B
Phase rotation
Figure 4-2 Typical Connection for 3 Directional Phase-fault and Sensitive Earth-fault
BUSBARS
A B C
Direction of power flow in
the forward direction
P1 P1 P1
S1 S1 S1
S2 S2 S2
P2 P2 P2
A
C B
Phase rotation
Figure 4-3 Typical Connection for 3 Phase-fault and Directional Earth-fault Protection
©2013 Siemens Protection Devices Limited
AG6-403,404
13
RL1
14
15
RL2
3 +
4 - S1
RL3
53 RL4
1A
54
A
55 RL5
5A
56
49 RL6
1A
50
B
51 RL7
5A
52
45
1A Rear F.O.
46
C
47
5A
48
25
1A
26
SEF
see note 3 27
5A
28
Va
81 S2
Vb
S3
Vc
82 S4
S5
83 S6
S7
S8
S9
AG6-405,406
13
RL1
14
15
RL2
3 +
4 - S1
RL3
53 RL4
1A
54
A
55 RL5
5A
56
49 RL6
1A
50
B
51 RL7
5A
52
45
1A Rear F.O.
46
C
47
5A
see note 3
48
25
1A
26
E/F
27
5A
28
S2
S3
S4
S5
S6
S7
Dn
1
S8
Da
2
S9
7SG11 Argus 6 Diagrams and Parameters
Notes
1. CT circuits are shown connected to
5
1A tap - use alternative tap for 5A rated
6
7
CTs.
8
2. CT and earth connections are typical
9
only.
10
16
3. Application shows use of SEF/REF
17
as an SEF input. Use of the input for high-
18
impedance REF requires an additional
11
12
setting resistor, and may also require a
19
metrosil.
20
21
22
23
24
comms ports
Tx
Rx
+
35
-
36
+
33
- 34
+ 31
-
32
+
29
-
30
+
43
-
44
+ 41
- 42
+ 39
- 40
+ 37
- 38
P300004 Argus 6 Connection Diagrams / AG6-403,404
Notes
1. CT circuits are shown connected to
5
1A tap - use alternative tap for 5A rated
6
7 CTs.
8
2. CT and earth connections are typical
9
only.
10
16
3. Application shows use of Holmgreen
17
connection for E/F circuit. Use of separate
18
ring-core CT is also possible.
11
12
19
20
21
22
23
24
comms ports
Tx
Rx
+ 35
- 36
+ 33
- 34
+ 31
-
32
+
29
-
30
+
43
-
44
+ 41
-
42
+
39
-
40
+
37
- 38
P300004 Argus 6 Connection Diagrams / AG6-405,406
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