Mitsubishi Electric ME96SSEB-MB, User Manual

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43
4. How to Use Test Mode
4.3. Test Menu 6
：
Functions for Determining Incorrect Wiring
4.3.1. Incorrect Wiring Patterns Detected by
①
Pattern display of incorrect wiring
This function is designed with the assumption that either a current input or a voltage input is incorrectly wired in
positive phase sequence. It is not possible to determine all incorrect wiring.
Dashed lines indicate incorrect wiring parts.
■
For 3-phase 4-wire system
No.
Wiring diagram
No.
Wiring diagram
No.
Wiring diagram
No. Wiring diagram
1 Normal 3 Reverse connection of 2 side CT 8 Reverse connection of 1 side CT, 2
side CT, and 3 side CT
13 Reverse connection between
terminals P2 and P3
Reversed phase sequence 1 *1 4 Reverse connection of 3 side CT 9 Switch between 1 side CT
and 2 side CT
14 Reverse connection between
terminals P1 and P3
Reversed phase sequence 2 *1
5
Reverse connection of 1 side CT
and 2 side CT
10
Switch between 2 side CT
and 3 side CT
15
Reverse connection between
terminals P1 and PN
Reversed phase sequence 3 *1 6 Reverse connection of 2 side CT
and 3 side CT
11 Switch between 1 side CT
and 3 side CT
16 Reverse connection between
terminals P2 and PN
2
Reverse connection of 1 side CT
7
Reverse connection of 1 side CT
and 3 side CT
12
Reverse connection between
terminals P1 and P2
17
Reverse connection between
terminals P3 and PN
*1. Correct measurement is possible even in reversed phase sequence.
*2. For low voltage circuits, it is not necessary to ground the VT and CT secondary side circuits.
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V
+C2
C2
+C3
C3
P1
P3
P2
+C1
C1
PN
1 2 3 N
K
L
k
l
K
L
k
l
K
L
k
l
U u
V v
U
V
v
u
v
u
U
V