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Tableau C-2 Relation de déphasage - Enroulement de transformateur ANSI
Copyright 1999© Megger
IEC
Diag
Vector
No.
Group
20
Yyn0
Yy0
21
22
YNy6
23
Yyn6
24
Yy6
25
Yzn1
AVTMTTR25-FRN Rév C Avril 2008
Winding Connection
High-Voltage
Low-Voltage
Winding (H)
Winding (X)
Winding
Phase
Shorted
Tested
By TTR
Winding
A
⎯
B
C
A
⎯
B
C
A
H
- H
H
2
0
B
H
- H
H
3
0
C
H
- H
H
1
0
A
⎯
B
C
A
⎯
B
C
A
⎯
B
C
47
Annexe C
Winding Tested
High-
Low-
Voltage
Voltage
Measured
Winding
Turn Ratio
H
- H
X
- X
V
1
3
1
3
H
H
- H
X
- X
2
1
2
1
V
X
H
- H
X
- X
3
2
3
2
H
- H
X
- X
V
1
3
1
3
H
H
- H
X
- X
2
1
2
1
V
X
H
- H
X
- X
3
2
3
2
-(H
-H
)
X
- X
V
1
2
0
3
1
H
-(H
-H
)
X
- X
2
3
0
1
2
V
X
-(H
-H
)
X
- X
3
1
0
2
3
H
- H
X
- X
V
1
3
3
1
H
H
- H
X
- X
2
1
1
2
V
X
H
- H
X
- X
3
2
2
3
H
- H
X
- X
V
1
3
3
1
H
H
- H
X
- X
2
1
1
2
V
X
H
- H
X
- X
3
2
2
3
H
- H
X
- X
• 3
1
3
1
0
V
H
H
- H
X
- X
2
1
2
0
V
X
H
- H
X
- X
3
2
3
0
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