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9.
Appendix
9.3. A List of Examples for Incorrect Wiring Display
9.3.3.
1-phase 3-wire System
Power Factor
No.
Phase Angle Display
(Input)
∠V
∠V
∠I
1N
3N
1
LEAD 0.707
315 135
LEAD 0.866
330 150
7
1.000
0
0
0 180
LAG 0.866
30 210
LAG 0.707
45 225
LEAD 0.707
135 315
LEAD 0.866
150 330
8
1.000
0
180
180
LAG 0.866
210
LAG 0.707
225
LEAD 0.707
315 135
LEAD 0.866
330 150
9
1.000
0
0
0 180
LAG 0.866
30 210
LAG 0.707
45 225
LEAD 0.707
135 315
LEAD 0.866
150 330
10
1.000
0
0
180
LAG 0.866
210
LAG 0.707
225
LEAD 0.707
135 135
LEAD 0.866
150 150
11
1.000
0
0
180 180
LAG 0.866
210 210
LAG 0.707
225 225
LEAD 0.707
315 315
LEAD 0.866
330 330
12
1.000
0
0
0
LAG 0.866
30
LAG 0.707
45
LEAD 0.707
135 315
LEAD 0.866
150 330
13
1.000
0
0
180
LAG 0.866
210
LAG 0.707
225
At balanced load (V
=V
(or V
), I
=I
1N
3N
2N
1
3
Active Power Display
Voltage Display
W
W
V
V
∠I
3
1
3
1N
3N
W
=Positive value
1
V
＞V
＝V
1N
3N
W
=Negative value
3
W
=Negative value
1
0
V
＝V
＜V
1N
3N
W
=Negative value
3
30
45
W
=Positive value
1
V
＝V
＜V
1N
13
W
=Negative value
3
W
=Negative value
1
0
V
＞V
＝V
1N
3N
W
=Positive value
3
30
45
W
=Negative value
1
V
＞V
＝V
1N
3N
W
=Negative value
3
0
W
V
＞W
＞V
＝V
1
3
1N
3N
30
45
W
=Negative value
1
0
V
＞V
＝V
1N
3N
W
=Positive value
3
30
45
(or I
))
2
Current Display
Voltage
V
I
I
I
1
N
13
1
N
3
I
＝I
1
3
P1
P3
13
I
＝0
N
I
＝I
1
3
P3
PN
13
I
＝0
N
I
＝I
1
3
P3
P1
3N
I
＝0
N
I
＝I
1
3
PN
P3
13
I
＝0
N
I
P1
P3
＝I
＜I
13
1
3
N
I
P1
P3
＝I
＜I
13
1
3
N
I
＝I
1
3
P1
P3
13
I
＝0
N
145
Connection (Note 1)
Current
Connection
3
1 side CT 3 side CT
Reverse connection between terminals P3
and PN
1
N 3
K
k
l
L
+C1-C1
+C3-C3
PN
K
k
Normal
Normal
l
L
Reverse connection between terminals P1
and P3
1
N 3
K
k
l
L
+C1-C1
+C3-C3
P1
K
k
Normal
Normal
l
L
Voltage are connected the order of P3, P1,
and PN terminals
1
N 3
k
K
l
L
+C1-C1
+C3-C3
PN
K
k
Normal
Normal
l
L
Voltage are connected the order of PN, P3,
and P1 terminals
1
N 3
k
K
l
L
+C1-C1
+C3-C3
P1
Normal
Normal
K
k
l
L
P3 and PN terminals are reversed and 1
side CT is reversed.
1
N 3
k
K
l
L
+C1-C1
+C3-C3
PN
K
k
Reverse
Normal
l
L
P3 and PN terminals are reversed and 3
side CT is reversed.
1
N 3
k
K
l
L
+C1-C1
+C3-C3
PN
K
k
Normal
Reverse
l
L
P3 and PN terminals are reversed, and
both of CTs are reversed.
1
N 3
k
K
l
L
+C1-C1
+C3-C3
PN
Reverse
Reverse
K
k
l
L
+C1
C1
+C2
C2
+C3
C3
P1
P2
P3
PN
+C1
C1
+C2
C2
+C3
C3
P1
P2
P3
PN
+C1
C1
+C2
C2
+C3
C3
P1
P2
P3
PN
+C1
C1
+C2
C2
+C3
C3
P1
P2
P3
PN
+C1
C1
+C2
C2
+C3
C3
P1
P2
P3
PN
+C1
C1
+C2
C2
+C3
C3
P1
P2
P3
PN
+C1
C1
+C2
C2
+C3
C3
P1
P2
P3
PN
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