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380-480VAC Power
Wiring
380-480VAC Power Connections
380-480VAC input and output power
connections are made as shown in
Figure 2.4 through Figure 2.8.
ATTENTION: 1336
!
REGEN equipment will not
be properly synchronized
unless correct Filter-to-
Precharge-to-Line Reactor-
to-Converter AC power
connections are maintained.
Failure to maintain correct
phase-related connections
will result in equipment
malfunction and/or failure.
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LINE FILTER
Input Term. Output Term. Input Term. Output Term. Input Term. Output Term. Input Term.
R
R
IN
OUT
S
S
IN
OUT
T
T
IN
OUT
Figure 2.4 — 380-480VAC Power Line Filter Connections
R1
1321 10% Line Reactor
R1
Figure 2.5 — 380-480VAC 1321 10% Line Reactor Connections
Regenerative DC Bus Supply Operation
PRECHARGE UNIT
LINE REACTOR
R
R1
R1
S
S1
S1
T
T1
T1
R
IN
L
R
L
S
S
IN
L
T
T
IN
PE — GND
(EARTH GROUND)
AC POWER IN
(FROM PRECHARGE UNIT)
S1
PE
(EARTH GROUND)
S1
R2
S2
R2
AC POWER OUT
(TO CONVERTER)
2–7
CONVERTER
R2
R2
S2
S2
T2
T2
R
OUT
S
OUT
T
OUT
T1
PE
(EARTH GROUND)
T1
T2
T2
S2
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