Figure 1.3 Single Line Diagram - Battery Operation - Mitsubishi Electric 1100A Series Owner Technical Manual

C) Battery operation: Load power supplied by UPS battery.

Figure 1.3 Single Line Diagram - Battery Operation

CB
AC
input
User
supplied
MCCB
Referring to Figure 1.3: In the event of AC input source failure or interruption, the UPS
converter will de-energize and the UPS 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 UPS converter automatically
restarts operation, the charger recharges the batteries and the Inverter is automatically
restarted without operator intervention. Load is automatically assumed by the inverter
without operator intervention.
1100A SERIES UPS
OWNERS / TECHNICAL MANUAL
UPS Module
CONVERTER /
CHARGER
52RC
72B
BATTERY
MITSUBISHI ELECTRIC 1100 SERIES UPS
Page Number:
52S
CB3
Static Transfer
Switch
INVERTER
52C
Power Flow
Not in Use
Built-in or external Battery
1-12
Output