ACM_CAT_007_0913 - page 102

SECTION BUCK-BOOST TRANSFORMERS
102
INPUTONLY
OUTPUTONLY
1
2
3
1
2
3
H4 H3 H2
H1
X4
X3
X2 X1
H4
H3 H2
H1
X4
X3 X2 X1
H4
H3
H2
H1
X4
X3
X2
X1
TRANS. #1
TRANS. #2
TRANS. #3
NEUTRAL
H4
H1
H3
H2
X4
X1
X3
X2
INPUT
OUTPUT
1
2
3
1
2
3
H4
H3
H2
H1
X4
X3
X2
X1
TRANS. #2
TRANS. #1
H4
H1
H3
H2
X4
X1
X3
X2
INPUT
OUTPUT
1
2
3
1
2
3
H4
H3
H2
H1
X4
X3
X2
X1
TRANS. #1
TRANS. #2
H4
H1
H3
H2
X4
X1
X3
X2
INPUT
OUTPUT
1
2
3
1
2
3
H4
H3
H2
H1
X4
X3
X2
X1
TRANS. #1
TRANS. #2
H4
H1
H3
H2
X4
X1
X3
X2
INPUT
OUTPUT
1
2
3
1
2
3
H4
H3
H2
H1
X4
X3
X2
X1
TRANS. #1
TRANS. #2
INPUTONLY
OUTPUTONLY
1
2
3
1
2
3
H4
H3 H2
H1
X4
X3
X2
X1
H3 H2
H1
X4
X3 X2 X1
H4
H3
H2
H1
X4
X3
X2
X1
TRANS. #1
TRANS. #2
TRANS. #3
NEUTRAL
H4
H1
H3
H2
X4
X1
X3
X2
INPUT
OUTPUT
3
2 1
1
3
H4
H3
H2
H1
X4
X3
X2
X1
TRANS. #2
TRANS. #1
FIG. AA ž WYE FIG. BB OPEN DELTA FIG. CC OPEN DELTA FIG. DD OPEN DELTA
FIG. EE OPEN DELTA FIG. FF ž WYE FIG. GG OPEN DELTA
{ The symbol O used in these
connection diagrams indicates
where to field install the over-
current protective device,
typically a fuse or circuit breaker.
| Cannot be reverse connected.
IMPORTANT: Refer to the N.E.C.
(National Electrical Code) Article
450-4 for overcurrent protection
of an autotransformer. These
connection diagrams are packed
with each buck-boost transformer.
Do not use connections other
than those shown above.
BUCK-BOOST WIRING DIAGRAMS { SINGLE PHASE
H4 H1 H3 H2 X4 X1
X3 X2
INPUT
OUTPUT
H4 H1 H3 H2 X4 X1
X3 X2
INPUT
OUTPUT
H4 H1 H3 H2 X4 X1
X3 X2
INPUT
OUTPUT
H4 H1 H3 H2 X4 X1 X3 X2
INPUT
OUTPUT
H4 H1 H3 H2 X4 X1 X3 X2
INPUT
OUTPUT
H4 H1
H3 H2 X4 X1
X3 X2
INPUT
OUTPUT
H4 H1 H3 H2 X4 X1 X3 X2
INPUT
OUTPUT
H4 H1
H3 H2 X4 X1 X3 X2
INPUT
OUTPUT
FIG. D
FIG. F
FIG. C
FIG. E
FIG. G FIG. H
FIG. J FIG. I
BUCK-BOOST WIRING DIAGRAMS { THREE PHASE