YOKOGAWA WT110 - Page 30

IM 253401-01E
3-8
Wiring diagram for three-phase, three-wire system with PT and CT connected
(253502, 253503)
SOURCE
L
l
CT PT
V
v
LOAD
L
l
CT PT
V
v
S
T
R
A
V
±
±
Input terminal
(ELEMENT1)
A
V
±
±
Input terminal
(ELEMENT3)
Wiring diagram for three-phase, four-wire system with PT and CT connected
(253503)
SOURCE
LOAD
S
T
R
L
l
CT PT
V
v
L
l
CT
PT
V
v
L
l
CT
PT
V
v
N
A
V
±
±
Input terminal
(ELEMENT1)
A
V
±
±
Input terminal
(ELEMENT2)
A
V
±
±
Input terminal
(ELEMENT3)
Wiring diagram for three-voltage, three-current system with PT and CT
connected (253503)
SOURCE LOAD
S
T
R
L
l
CT
PT
V
v
L
l
CT
PT
V
v
L
l
CT
PT
V
v
A
V
±
±
Input terminal
(ELEMENT1)
A
V
±
±
Input terminal
(ELEMENT2)
A
V
±
±
Input terminal
(ELEMENT3)
3.5 Wiring the Measurement Circuit when Using External PT/CT