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