7SG11 Argus User Manual
©2013 Siemens Protection Devices Limited
P20006 Page 33 of 37
A
A
B or E/F
C
E/F or SEF/REF
+
-
auxiliary
d.c. supply
START
STOP
time interval meter
240V a.c.
supply
A
240V a.c.
supply
phase
angle
meter
phase shifting
transformer
V
B
C
E/F
82
83
81
79
83
81
82
80
53
49
45
25
54
50
46
26
A
Figure 4-3
Secondary Injection Test Circuit
Figure 4-4
Directional Test Circuit
240V a.c.
supply
V
A
V
A
V
B
V
C
I
A
I
B
I
C
phase shifting
transformer
E/F or SEF/REF
+
-
A
A
B
C
primary injection
test source
Figure 4-5
Two-out-of-three Directional
Test Circuit
Figure 4-6
Phase to Earth Primary Injection
Test Circuit
E/F or SEF/REF
+
-
A
A
B
C
primary injection
test source
A
Figure 4-7
Phase to Phase Primary Injection Test Circuit