7SG11 Argus 1 Diagrams and Parameters
©2010 Siemens Protection Devices Limited
P20008 Page 29 of 33
Section 4: Application Diagrams
The following pages contain example application diagrams for a variety of connections, showing various hardware
options.
P2
P1
S2
S
1
P2
P1
S2
S
1
P2
P1
S2
S
1
Notes
1.
CT circuits are shown
connected to 1A inputs - use 5A
inputs for 5A rated CTs.
2.
CT and earth connections are
typical only.
3.
Diagram shows use of residual
(Holmgreen) connection for E/F
circuit. Alternatively use a ring-core
CT.
4.
Rear RS485 port is an ordering
option. On the last Relay on the bus
only, connect wire link as shown to
include 120 ohm terminating resistor
in circuit.
25
26
27
28
13
14
15
3
4
5
6
7
8
9
10
16
17
18
11
12
19
20
S1
RL1
RL2
RL3
RL4
RL5
21
22
RL6
23
24
RL7
+
-
AG1-101, 102
P300001 Argus 1 Connection Diagrams / AG1-101,102
A
B
C
BUSBARS
see note 3
E/F
1A
5A
Rx
Tx
Re
ar
F
.O
.
comms ports
Rear RS485
comms port
see note 4
A
B
Term
Screen
120
Figure 4-1
Typical Connection for Earth-fault Protection