Table of Contents
Advertisement
MITSUBISHI
ELECTRIC
1.4 OPERATION OVERVIEW
The UPS provides two power paths between the utility source and the critical load. Figure
1.1 shows the path for normal operation, with the load powered from the inverter. Figure
1.2 shows the path for bypass operation, with the load supplied through the static bypass
line.
FIGURE 1.1 Single Line Diagram - Normal Operation. Load powered by inverter.
CB
AC input
User
supplied
During normal operation, the path through the inverter is used to power the load.
Referring to Figure 1.1: Input AC power is converted to DC by the Converter. DC power is
utilized to charge the UPS battery and to provide power to the Inverter. The Inverter converts
the DC power to clean AC power to supply the critical load.
The conversion - inversion process eliminates any voltage transients or fluctuations existing in
the input power before it reaches the critical load.
* The Input circuit breakers (MCCB) for protection of the UPS and cables are field supplied and
field installed. (See WARNING 4 in section 1.1).
2033G SERIES UPS
OWNERS / TECHNICAL MANUAL
CONVERTER
/ CHARGER
FI
CB1
CB2
External
BATTERY
MITSUBISHI ELECTRIC 2033G SERIES UPS
52S
Static Transfer
Switch
CB3
INVERTER
FO
52C
UPS Module
FB
Power Flow
Not in Use
CB
Page Number:
1-7
Output
Advertisement
Table of Contents
