Shield T3 60 – 500KVA User Manual
9
1
Overview
1.1
Product Description
The T3 series Tower UPS is an online double-conversion UPS that uses digital signal
processing(DSP) technology. Provide a stable and uninterrupted power supply for the
important load.
1.2
System conceptual diagram
The Tower UPS is configured by the following part: Power modules, Bypass &
Monitoring module, and cabinet with manual Bypass switch. One or several battery
strings should be installed to provide backup energy once the utility fails. The UPS
structure is shown in
Rectifier
AC/DC
Main
Static Bypass
Manual Bypass
Inverter
DC/AC
Charge/
Discharge
Output
Battery
Bypass
Figure 1-1
UPS Conceptual Diagram
1.3
Power unit conceptual diagram
The power unit
conceptual diagram
is shown as
.The
Power unit
contains a
rectifier, an inverter, and a DC/DC converter for charge and discharge of the external
batteries.
Rectifier
AC/DC
Inverter
DC/AC
DC/DC
Input
Battery
Output
Figure1-2 Power unit conceptual diagram
1.4
Working Modes
The Modular UPS is an on-line, double-conversion UPS that permits
operation in the following modes:
Normal mode
Battery mode
Bypass mode
Maintenance mode (manual bypass)
ECO mode