Mitsubishi Electric EMU4-FD1-MB User Manual page 38

Test menu 1: Discrimination support function for improper connection
■Display example of discrimination support function for improper connection
Display example (Connection example for three-phase 3-wire)
Power
No. factor Phase angle display
(Input)
∠V 12 ∠V
Forward
0.707
Forward
0.866
Normal
1 0 300
status
Delayed
0.866
Delayed
0.707
Forward
0.707
Forward
0.866
1 1 0 60
Delayed
0.866
Delayed
0.707
Forward
0.707
Forward
0.866
2 1 0 120
Delayed
0.866
Delayed
0.707
Forward
0.707
Forward
0.866
3 0 300
1
Delayed
0.866
Delayed
0.707
Forward
0.707
Forward
0.866
4 0 300
1
Delayed
0.866
Delayed
0.707
Forward
0.707
Forward
0.866
5 0 300
1
Delayed
0.866
Delayed
0.707
At the average current (V
Electric power
display
W W
23 ∠I 1 ∠I 3 1
345 225
W
＞W
1 3
0 240
30 270 W
＝W
1 3
60 300
W
＜W
1 3
75 315
165 45
W1＝Negative
180 60
value
210 90
W3＝Positive
240 120 value
255 135
165 45
W1＝Negative
180 60
value
210 90
W3＝Positive
240 120 value
255 135
165 225
W1＝Negative
180 240
value
210 270
W3＝Positive
240 300 value
255 315
W1＝Negative
225 345
value
W3＝Positive
240 0
value
W
270 30
＝W ＝0
1 3
W1＝Positive
300 60
value
W3＝Negative
315 75
value
W1＝Negative
225 105
value
W3＝Negative
240 120
value
W1＝0
270 150
W3＝Negative
W1＝Positive
300 180
value
W3＝Negative
315 195
value
)
＝V 、Ｉ ＝Ｉ
12 23 1 3
Voltage display
V V V I
3 12 23 31
V
＝V ＝V
12 23 31
V
＝V ＝V
12 23 31
V
＝V ＜V
12 23 31
V
＝V ＝V
12 23 31
V
＝V ＝V
12 23 31
V
＝V ＝V
12 23 31
(37/71)
Indicates improper connection
Current display Wiring
I I
1 2 3
1 2 3
K
L
K
I
＝I ＝I
1 2 3
L
U
V
U
V
Connection between P1 and P2
are reserved.
1 2 3
K
L
K
I
＝I ＝I
1 2 3
L
U
V
U
V
Connection of VT side "1"is
reversed.
1 2 3
K
L
K
I
＝I ＝I
1 2 3
L
U u
v
V
U
u
V v
Connection of CT on side "1" is
reversed.
1 2 3
K
L
K
I
＝I ＜I
1 3 2
L
U
V
u
U
v
V
CT side "1" and "3" are swapped.
1 2 3
K
L
I
＝I ＝I K
1 2 3
L
u
U
v
V
u
U
V v
Connection of VT's terminals in
order of P2, P3, P1 to measuring
instrument's terminals P1, P2, P3.
1 2 3
K
L
I
＝I ＝I
1 2 3 K
L
U
V
v
U u
V v
1K
1L
3K
3L
u
P1
v
P2
u
P3
v
1K
1L
3K
3L
u
P1
v
P2
u
v
P3
1K
1L
3K
3L
P1
P2
P3
1K
1L
3K
3L
u
P1
v
P2
P3
1K
1L
3K
3L
P1
P2
P3
1K
1L
3K
3L
u
P1
P2
P3