Specifications
Wattmeters
Mechanical Indicators
55
Connection diagrams
( )
CT
Load
T-150 rectifier
for 1-phase, 2-wire
system wattmeter
+P
P
C
+C
Fig. 1 YP-206NW, YP-208NW,
YP-210NW, YP-8NW,
YP-10NW and
LP-80NW
(combined with CT)
CT
VT
Note 1
Load
+P
P
C
+C
( )
T-150 rectifier
for 1-phase, 2-wire
system wattmeter
CT
Load
C
+
C
P
+P
VT
CT
Load
C
+
C
P
+P
Note 1
1-phase, 2-wire system
Fig. 2 YP-206NW, YP-208NW,
YP-210NW, YP-8NW,
YP-10NW and
LP-80NW
(combined with VT and CT)
Fig. 3 YP-12NW and
LP-110NW
(combined with CT)
Fig. 4 YP-12NW and
LP-110NW
(combined with VT and CT)
1
0
2
CT
P1
P0
P2
C1
C
2
+C
2
+C
1
( )
Load
T-150 rectifier
for 1-phase, 3-wire
system wattmeter
Fig. 5 YP-206NW, YP-208NW,
YP-210NW, YP-8NW,
YP-10NW and
LP-80NW
(combined with CT)
1
CT
Load
C1
C2
P2
P1
P0
0 2
+C
1
+C
2
1-phase, 3-wire system
Fig. 6 YP-12NW and
LP-110NW
(combined with CT)
1
2
3
Load
P1
P2
P3
C1
C
3
+C
1
CT
+C
3
( )
T-150 rectifier
for 3-phase, 3-wire
system wattmeter
Fig. 7 YP-206NW, YP-208NW,
YP-210NW, YP-8NW,
YP-10NW and
LP-80NW
(combined with CT)
1
2
3
CT
Note 1
Load
P1
P2
P3
C1
C
3
VT
+C
1
+C
3
( )
T-150 rectifier
for 3-phase, 3-wire
system wattmeter
1
2
3
CT
Load
C1
C3
P3
P1
P2
+C
1
+C
3
1
2
3
VT
CT
Note 1
Load
C1
C3
P3
P1
P2
+C
1
+C
3
3-phase, 3-wire system
Fig. 8 YP-206NW, YP-208NW,
YP-210NW, YP-8NW,
YP-10NW and
LP-80NW
(combined with VT and CT)
Fig. 9 YP-12NW and
LP-110NW
(combined with CT)
Fig. 10 YP-12NW and
LP-110NW
(combined with VT and CT)
1
2
3
0
CT
Load
P1
P0
P3
C1
C2
C
3
+C
1
+C
3
+C
2
( )
T-150 rectifier
for 3-phase, 4-wire
system wattmeter
Fig. 11 YP-206NW, YP-208NW,
YP-210NW, YP-8NW,
YP-10NW and
LP-80NW
(combined with CT)
1
2
3
0
CT
VT
Note 1Load
P1
P0
P3
C1
C
3
C2
+C
2
+C
3
+C
1
( )
T-150 rectifier
for 3-phase, 4-wire
system wattmeter
1
2
3
0
CT
Load
C1
C2
C3
+C
3
+C
2
+C
1
P3P1
P0
1
2
3
0
CT
Note 1
Load
VT
C1
C2
C3
+C
3
+C
2
+C
1
P3P1
P0
3-phase, 4-wire system
Fig. 12 YP-206NW, YP-208NW,
YP-210NW, YP-8NW,
YP-10NW and
LP-80NW
(combined with VT and CT)
Fig. 13 YP-12NW and
LP-110NW
(combined with CT)
Fig. 14 YP-12NW and
LP-110NW
(combined with VT and CT)
Note 1. For low-voltage circuits, grounding of the secondary sides of the instrument voltage transformer and current transformer is unnecessary.