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9.
Appendix
9.3. A List of Examples for Incorrect Wiring Display
9.3.1.
3-phase 4-wire System
Phase Angle Display
Power Factor
No.
(Input)
∠V
∠V
∠V
1N
2N
3N
16
LEAD 0.707
LEAD 0.866
1.000
0
330
300
LAG 0.866
LAG 0.707
17
LEAD 0.707
LEAD 0.866
1.000
0
60
30
LAG 0.866
LAG 0.707
18
LEAD 0.707
LEAD 0.866
1.000
0
240
120
LAG 0.866
LAG 0.707
19
LEAD 0.707
LEAD 0.866
1.000
0
240
120
LAG 0.866
LAG 0.707
20
LEAD 0.707
LEAD 0.866
1.000
0
240
120
LAG 0.866
LAG 0.707
21
LEAD 0.707
LEAD 0.866
1.000
0
330
30
LAG 0.866
LAG 0.707
At balanced load (V
Active Power Display
W
W
W
V
∠I
∠I
∠I
1
2
3
1
2
3
345
105
225
0
120
240
W
=Positive value
1
30
150
270
W
=Negative value
2
W
=Positive value
3
60
180
300
75
195
315
285
45
165
300
60
180
W
=Positive value
1
330
90
210
W
=Positive value
2
W
=Negative value
3
0
120
240
15
135
255
W
=Positive value
1
15
315
75
W
=Positive value
2
W
=Positive value
3
W
=Positive value
1
30
330
90
W
=0
2
W
=Positive value
3
W
=Positive value
1
60
0
120
W
=Negative value
2
W
=Positive value
3
W
=0
1
90
30
150
W
=Negative value
2
W
=Positive value
3
W
=Negative value
1
105
45
165
W
=Negative value
2
W
=Positive value
3
W
=Negative value
1
135
75
195
W
=Negative value
2
W
=Positive value
3
W
=Negative value
1
150
90
210
W
=Negative value
2
W
=0
3
W
=Negative value
1
180
120
240
W
=Negative value
2
W
=Negative value
3
W
=Negative value
1
210
150
270
W
=0
2
W
=Negative value
3
W
=Negative value
1
225
165
285
W
=Positive value
2
W
=Negative value
3
W
=Negative value
1
255
195
315
W
=Positive value
2
W
=Negative value
3
W
=0
1
270
210
330
W
=Positive value
2
W
=Negative value
3
W
=Positive value
1
300
240
0
W
=Positive value
2
W
=Negative value
3
W
=Positive value
1
330
270
30
W
=Positive value
2
W
=0
3
W
=Positive value
1
345
285
45
W
=Positive value
2
W
=Positive value
3
315
255
15
330
270
30
W
=Positive value
1
0
300
60
W
=Positive value
2
W
=Positive value
3
30
330
90
45
345
105
=V
=V
, I
=I
=I
)
1N
2N
3N
1
2
3
Voltage Display
Current Display
Voltage
V
V
I
I
I
1
2
3
1N
2N
3N
1
2
3
V
=V
I
=I
=I
P1 PN P3
＞V
1N
3N
2N
1
2
3
V
=V
I
=I
=I
P1 P2 PN P3
＞V
1N
2N
3N
1
2
3
V
=V
=V
I
=I
=I
P2 P1 P3 PN
1N
2N
3N
1
2
3
V
=V
=V
I
=I
=I
P1 P3 P2 PN
1N
2N
3N
1
2
3
V
=V
=V
I
=I
=I
P3 P2 P1 PN
1N
2N
3N
1
2
3
V
=V
I
=I
=I
PN P2 P3 P1
＜V
1N
2N
3N
1
2
3
131
Connection (Note 1)
Current
N
1 side CT
2 side CT
3 side CT
Reverse connection between
terminals P2 and PN
1
2
3
K
k
l
L
k
K
l
L
+C1-C1
+C2-C2
+C3-C3
K
k
P2
Normal
Normal
Normal
l
L
Reverse connection between
terminals P3 and PN
1 2 3 N
K
k
l
L
k
K
l
L
+C1-C1
+C2-C2
+C3-C3
K
k
Normal
Normal
Normal
l
L
P1 and P2 terminals are reversed
and the connection 1 side CT
reversed
1
2
3
K
k
l
L
k
K
+C1-C1
+C2-C2
+C3-C3
l
L
Reverse
Normal
Normal
K
k
l
L
P2 and P3 terminals are reversed
and the connection 1 side CT
reversed
1 2 3 N
K
k
l
L
k
K
+C1-C1
+C2-C2
+C3-C3
l
L
Reverse
Normal
Normal
K
k
l
L
P1 and P3 terminals are reversed
and the connection 1 side CT
reversed
1 2 3 N
k
K
l
L
k
K
+C1-C1
+C2-C2
+C3-C3
l
L
Reverse
Normal
Normal
K
k
l
L
P1 and PN terminals are reversed
and the connection 1 side CT
reversed
1 2 3 N
k
K
l
L
k
K
+C1-C1
+C2-C2
+C3-C3
l
L
Reverse
Normal
Normal
K
k
l
L
Connection
N
+C1
C1
+C2
C2
+C3
C3
u
U
P1
v
V
U
P2
u
v
V
P3
u
U
PN
v
V
+C1
C1
+C2
C2
+C3
C3
U
u
P1
V
v
U
P2
u
v
V
P3
u
U
PN
v
V
N
+C1
C1
+C2
C2
+C3
C3
U
u
P1
V
v
U
P2
u
v
V
P3
u
U
PN
v
V
+C1
C1
+C2
C2
+C3
C3
U
u
P1
V
v
U
P2
u
v
V
P3
u
U
PN
v
V
+C1
C1
+C2
C2
+C3
C3
U
u
P1
V
v
U
P2
u
v
V
P3
u
U
PN
v
V
+C1
C1
+C2
C2
+C3
C3
U
u
P1
V
v
U
P2
u
v
V
P3
u
U
PN
v
V
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