All rights reserved. No portion may be reproduced without written consent
17
RAYTECH Switzerland
Transformer type
Winding Measurement
Vector Group
Phase
HV Winding
LV Winding
A
H1-H3
X1-(X2X3)
D-y 1
B
H2-H1
X2-(X1X3)
C
H3-H2
X3-(X1X2)
A
H1-H3
(X1X3)-X2
D-y 3
B
H2-H1
(X1X2)-X3
C
H3-H2
(X2X3)-X1
A
H1-H3
X3-(X1X2)
D-y 5
B
H2-H1
X1-(X2X3)
C
H3-H2
X2-(X1X3)
A
H1-H3
(X2X3)-X1
D-y 7
B
H2-H1
(X1X3)-X2
C
H3-H2
(X1X2)-X3
A
H1-H3
X2-(X1X3)
D-y 9
B
H2-H1
X3-(X1X2)
C
H3-H2
X1-(X2X3)
A
H1-H3
(X1X2)-X3
D-y 11
B
H2-H1
(X2X3)-X1
C
H3-H2
(X1X3)-X2
A
H1-(H2H3)
X1-X0
D-zn 0
B
H2-(H1H3)
X2-X0
C
H3-(H1H2)
X3-X0
A
H1-(H2H3)
X0-X2
D-zn 2
B
H2-(H1H3)
X0-X3
C
H3-(H1H2)
X0-X1
A
H1-(H2H3)
X3-X0
D-zn 4
B
H2-(H1H3)
X1-X0
C
H3-(H1H2)
X2-X0
