Specifications
65
Mechanical Indicators
Power Factor Meters
Connection diagrams
( )
1
23
CT
Load
+C
1
+C
3
C
1
C
3
P1
P3
T-150 rectifier
for 3-phase, 3-wire
system unbalanced
power factor meter
Fig. 1 YP-206NPFU, YP-208NPFU, YP-210NPFU,
YP-8NPFU, YP-10NPFU and LP-80NPFU
(combined with CT)
( )
1
23
CT
+C
1
+C
3
C
1
C
3
P1
P3
Note 1
VT
Load
T-150 rectifier
for 3-phase, 3-wire
system unbalanced
power factor meter
Fig. 2 YP-206NPFU, YP-208NPFU, YP-210NPFU,
YP-8NPFU, YP-10NPFU and LP-80NPFU
(combined with VT and CT)
1
23
CT
Load
+C
1
+C
3
C
1
C
3
P1 P2
P3
Fig. 3 YP-12NPFU and LP-110NPFU
(combined with CT)
1
23
CT
Load
VT
Note 1
+C
1
+C
3
C
1
C
3
P1 P2
P3
Fig. 4 YP-12NPFU and LP-110NPFU
(combined with VT and CT)
( )
1
23
0
VT
CT
Note 1
Load
+
+C
1
+C
3
+C
2
C
1
C
2
C
3
P1
P3
T-150 rectifier
for 3-phase, 4-wire
system power
factor meter
Fig. 6 YP-206NPFU, YP-208NPFU, YP-210NPFU,
YP-8NPFU, YP-10NPFU and LP-80NPFU
(combined with VT and CT)
PP1
3
1
1
1
2
2
3
3
CCC
+C
2
+C
3
+C
0
CT
Load
Fig. 7 YP-12NPFU and LP-110NPFU
(combined with CT)
PP1
3
1
1
1
2
2
3
3
CCC
+C
2
+C
3
+C
0
VT
CT
Note 1
Load
Fig. 8 YP-12NPFU and LP-110NPFU
(combined with VT and CT)
3-phase, 3-wire systems (unbalanced loads)
( )
1
23
0
CT
Load
+C
1
+C
3
+C
2
C
1
C
2
C
3
P1
P3
T-150 rectifier
for 3-phase, 4-wire
system power
factor meter
Fig. 5 YP-206NPFU, YP-208NPFU, YP-210NPFU,
YP-8NPFU, YP-10NPFU and LP-80NPFU
(combined with CT)
3-phase, 4-wire systems
Note 1. For low-voltage circuits, grounding of the secondary sides of the instrument voltage transformer and current transformer is unnecessary.