Figure 1.3 Single Line Diagram-Battery Operation - Mitsubishi Electric 2033D SERIES Owner Technical Manual

MITSUBISHI
ELECTRIC
C) Inverter supply at battery operation
FIGURE 1.3 Single Line Diagram - Battery Operation
CB
AC Bypass
Input
CB
AC input
User
supplied
Referring to Figure 1.3: In the event of AC input source failure or interruption, the
converter will de-energize and the battery will immediately discharge and supply DC
power to the inverter to maintain continuous AC power to the load. This operation will
continue until:
a) The battery capacity expires and the inverter turns off, or
b) Input power is restored after which the converter will power the inverter and critical
load and simultaneously recharge the batteries.
A fully charged battery will provide power for the specified time at the rated load, or longer,
at a reduced load.
When power is restored after a low battery shutdown, the converter automatically restarts
operation, recharges the batteries and the Inverter is automatically restarted without
operator intervention. Load is automatically assumed by the inverter without operator
intervention.
The power drawn by the load is equally shared between all system UPS during battery
operation.
MITSUBISHI ELECTRIC 2033D SERIES UPS
2033D SERIES UPS
OWNERS / TECHNICAL MANUAL
52RS
CONVERTER
52RC
FI
BATTERY
Page Number:
1-7
Static Transfer
Switch
INVERTER
52C
FO
FB
72B
50kVA, 80kVA:
External Battery
Maintenance
Bypass
Switch
Output
52CS
Power Flow
Not in Use
UPS Module