Siemens Siprotec 7UM62 Manual page 511

L1 L2
Figure A-34 Voltage Transformer Connections for Two Voltage Transformers in Open Delta Connection (V Connection)
A B
L1 L2 L3
Figure A-35 Voltage Transformer Connection with L2 Earthed on the Secondary Side
Figure A-36 Rotor Earth Fault Connection 1 to 3 Hz
– with 1-3 Hz generator 7XT71 and resistor device 7XR6004.
7UM62 Manual
C53000-G1176-C149-3
L3
C
40 kΩ
+
Exc.
7XR6004
-
40 kΩ
25
R15
R17
R18
R16
R15
R17
R18
R16
Connection to the
phase-to-phase VT
voltage
120 V
100 V
110 V
7
9
11
27 19
Control input
21
15
Measuring input
17
A.4 Connection Examples
7UM61
7UM62
U
V
A(L1)
L1
U
V
B(L2)
L2
U
V
C(L3)
L3
7UM62
7UM6
V
U
A(L1)
A(L1),
V
U
B(L2)
B(L2)
V
U
C(L3)
C)L3)
7UM62
K13 +
K14
K15 +
K16
TD1
TD2
495