Siemens 7SG11 Manual page 155

Hide thumbs Also See for 7SG11:
Table of Contents

Advertisement

Section 4: Application Diagrams
The following pages contain example application diagrams for a variety of connections, showing various hardware
options.
BUSBARS
A
B C
see note 3
Figure 4-1
Typical Connection for Earth-fault Protection
©2010 Siemens Protection Devices Limited
AG1-101, 102
5
13
6
RL1
14
7
15
8
9
RL2
10
3
+
16
4
-
S1
17
RL3
18
11
RL4
12
19
RL5
20
21
RL6
22
23
RL7
24
25
1A
26
E/F
27
5A
28
7SG11 Argus 1 Diagrams and Parameters
Notes
1.
CT
circuits
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)
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.
Rear RS485
comms port
Tx
120
A
Rx
B
Term
Screen
P300001 Argus 1 Connection Diagrams / AG1-101,102
are
shown
connection
for
E/F
see note 4
P20008 Page 29 of 33

Hide quick links:

Advertisement

Table of Contents
loading

This manual is also suitable for:

Argus 7sg11Argus 7sg116

Table of Contents