Toshiba AUXILIARY CABINET 431M - Manual (Page 30)

22 4300 Series Ancillary Cabinets Installation and Operation Manual
AC/DC Rectifier
DC/AC Inverter
4300 UPS
Bypass Thyristor
UPS Input Isolation
Maintenance Bypass Switch
431M MBS (Optional)
MCCB
AC Input 3Φ-3W
0r
3Φ-4W
Output
3Φ-3W
or
3Φ-4W
Input
Contactor
Output
Contactor
UPS Output Isolation
Battery Breaker 1
DC/DC
Converter
Ground Wire
431B Batt. Cabinet (Optional)
Battery Breaker 2
Fuse
Fuse
SYNC
431A
Auxiliary T
ransformer Cabinet (Optional)
CB1
CB2
CB3
Output Trans
-
former
T2
T1
Input Trans
-
former
(208V W
ye)
(208V W
ye)
Fuse
Figure 9-2 - One-Line Diagram of 4300 UPS with Optional matching 431M MBS,
431B Battery Cabinet, and 431A
T
ransformer Cabinet
EMI Filter
EMI Filter