Wärtsilä JOVYSTAR
– DELTA 40 – 150kVA BAX 4647E - 10 -
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Ausgang
BCB
RCB
SBCB
MBCB
Batterie
OCB
(Gleichrichter)
(Wechselrichter)
(Statischer Schalter)
(Manueller Bypass)
Netz
(USV+Bypass)
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Ausgang
BCB
RCB
SBCB
MBCB
Batterie
OCB
(Gleichrichter)
(Wechselrichter)
(Statischer Schalter)
(Manueller Bypass)
Netz
(USV+Bypass)
2.3.3
Battery and Battery Charger
The battery is placed inside the UPS up to 32KVA in case of small autonomy times. It is placed in an external battery
cabinet for higher UPS ratings and/or autonomy times. The control-electronic for the rectifier includes the circuits for the
battery charger too. The battery operates in stand-by parallel operation to the rectifier. For obtaining the maximum life-
time of the battery it is charged in trickle-mode according to DIN 41773.
2.3.4
Static Bypass
It serves to transfer the load between INVERTER and MAINS, and vice-versa, without interruption
, and uses SCR’s as
power commutation elements.
2.3.5
Manual Bypass
It provides a solution of bypassing the UPS by itself, supplying the load directly by the mains in case of maintenance or
serious failure.
ATTENTION:
The sequence of switching to bypass must be carried out with respect to the procedure
indicated on the UPS and in the chapter “Operating the UPS”. The manufacturer cannot
accept responsibility for damages arising from incorrect operation.
2.3.6
Front Panel
The front panel of the UPS, consists of a double row alphanumeric display including 5 function keys, allows the com-
plete monitoring of the UPS status. The mimic diagram helps to understand the operating status of the UPS. For more
informa
tion see the chapter “Operation”.
2.3.7
Operating Status
2.3.7.1
Normal Operation
The inverter is supplied by the rectifier. The load is supplied directly by the inverter via the static switch.
Normal operation
2.3.7.2
Inverter Fault
The load is transferred to bypass through the static switch; the transfer is carried out without interruption.
Load supplied by bypass
(Manual bypass)
(Inverter)
(Rectifier)
(Static switch)
Battery
Mains
(UPS+Bypass)
Output
(Manual bypass)
(Inverter)
(Rectifier)
(Static switch)
Battery
Mains
(UPS+Bypass)
Output
