7SR224 Argus Commissioning & Maintenance Guide
©2010 Siemens Protection Devices Limited Chapter 6 Page 57 of 73
3.3 Bus Voltage Transformer Fail (60VTF-Bus)
7SR224
46
BC
46
NPS
(x2)
37
(x2)
49
50
BF
51V
V
L1
(V
A
)
V
L2
(V
B
)
V
L3
(V
C
)
V
4
(V
X
)
I
L1
(I
A
)
81
HBL
2
37
(x2)
49
50
BF
51V
I
L2
(I
B
)
81
HBL
2
37
(x2)
49
50
BF
51V
I
L3
(I
C
)
81
HBL
2
60
CTS
60
VTS
I
4
(I
G
/I
SEF
)
74
TCS
(x3)
Note: The use of some
functions are mutually exclusive
67/
50
(x4)
67/
51
(x4)
67/
50
(x4)
67/
50
(x4)
67/
51
(x4)
67/
51
(x4)
64
H
27
59
27
59
(x4)
27
59
(x4)
27
59
(x4)
47
(x2)
79
59N
(x2)
Note:
Example shows
Voltage Config =
Van, Vbn, Vcn
81
(x4)
67/
50G
(x4)
67/
51G
(x4)
67/
50S
(x4)
67/
51S
(x4)
27S
59S
27S
59S
27S
59S
Batt
Test
Cap.
Test
60
VTF
Figure 3-3 Bus Voltage Transformer Fail
Voltage Inputs: Vx, V
L1
(V
A
), V
L2
(V
B
), V
L3
(V
C
)
Current Inputs:
Disable: Vx27/59
Map Pickup LED: 60VTS - Self Reset
With the CB in the closed position, apply nominal voltage to the Vx input and to the corresponding synchronising
voltage input. Remove voltage from the Vx input and measure time delay to 60VTF-Bus alarm.
Alarm Time Setting(s) Measured Alarm Time (s)
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