Chapter 4 : Central bypass systems
UPS/NTA GB/ DELMX_EXPC1C3C6.B
page 24
10. CENTRAL BYPASS SYSTEMS
10.1.Standard basic scheme
Q1
Q4
Q3
Q5
Q1
Q1
Q20
MBP
ABP
BP
X50
X40
X10
REC
INV
DCC
X20
Q20
X20
Q20
X20
DCC
DCC
X10
REC
INV
X10
REC
INV
*
*
*
X10 : rectifier input
X40 : bypass input
X50 : to the load
REC : rectifier
INV : inverter
BAT : battery
DCC : battery charger converter
BP :
bypass facility
ABP : automatic bypass
MBP : maintenance bypass
* other protection upon request
NOTE
: in any case, see the technical details of the drawing on the inner side of the UPS door.
10.2. Mimic panel of a module (rect. – Batt. – Inv.)
Rectifier and battery
charger
Battery
Inverter
Module output to the
common busbar
1
2
3
4
5
6
7
General alarm
