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Figure 4-2
Typical Connection for Directional Sensitive Earth-fault Protection
BUSBARS
A
B
C
A
C
B
Phase rotation
Figure 4-3
Typical Connection for 3 Directional Phase-fault Protection
©2010 Siemens Protection Devices Limited
AG2-3x1, 3x2
5
13
6
RL1
14
7
15
8
9
RL2
10
3
+
16
4
-
S1
17
RL3
18
11
53
RL4
12
1A
54
19
A
55
RL5
20
5A
56
21
49
RL6
22
1A
50
23
B
51
RL7
24
5A
52
45
1A
46
C
47
5A
48
+
35
Va
81
S2
-
36
+
33
Vb
S3
-
34
Vc
+
31
82
S4
-
32
+
29
S5
-
30
37
83
RL8
38
39
RL9
40
41
RL10
42
43
RL11
44
see note 3
7SG11 Argus 2 Diagrams and Parameters
Notes
1.
CT circuits are shown connected to
1A tap - use alternative tap for 5A rated
CTs.
2.
CT and earth connections are typical
only.
3.
Optional expansion card, fitted only
on models AG2-311 and AG2-312.
4.
Optional expansion card, fitted only
on models AG2-321 and AG2-322.
5.
Rear RS485 port is an ordering
option. Connect wire link as shown to
include 120W terminating resistor in circuit.
120
A
Tx
B
Term
Rx
Screen
+
35
S2
-
36
+
33
S3
-
34
+
31
S4
-
32
+
29
S5
-
30
+
43
S6
-
44
+
41
S7
-
42
+
39
S8
-
40
+
37
S9
-
38
see note 4
P300002 Argus 2 Connection Diagrams / AG2-3x1,3x2
Rear RS485
comms port
see note 6
P20009 Page 31 of 37
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