A Appendix
488
7UM62 Manual
C53000-G1176-C149-3
A.4
Connection Examples
Figure A-26 Bus–Bar Connection
Current and voltage connections to three transformers, core balance neutral current transformers and
broken delta voltage transformers (e–n).
V
E
V
A(L1)
V
B(L2)
V
C(L3)
I
A(L1)S2
I
B(L2)S2
I
C(L3)S2
A (L1)
B (L2)
C (L3)
I
A(L1)S1
I
B(L2)S1
I
C(L3)S1
I
EE2
R18
R16
R17
R15
Q8
Q7
R13
R14
Q1
Q2
Q3
Q4
Q5
Q6
7UM62
R
L
I
EE1
J8
J7
Rotor earth current
injection
k
l
J2
J3
J4
J5
J6
J1
TD3
K18
K17 +
Excitation voltage
injection
TD1
K14
K13 +
TD2
K16
K15 +
Measuring transducer:
-Temperature
injection
- or DC voltage
injection
n
e
ANSI
52