Power Module Layout; Opening And Closing The Unit - Tripp Lite SU60KX Manual

1 Basic Operation (continued)
1.3 Operating Principles (continued)

1.3.3 Power Module Layout

The SU-Series 3-Phase UPS double-conversion power modules consist of three components (Figure 1.3.3a):
1) An AC/DC converter
2) An AC/DC inverter
3) A charger
The power module's 3-phase, 4-wire input runs A/C current through the AC/DC converter to generate regulative dual DC bus (±370Vdc). During
backup mode, this current is provided by battery power.
The dual DC bus then runs through the AC/DC inverter to generate a pure sine wave of AC power (3-phase, 4-wire). The DC bus also charges the
dual battery strings by running current through the charger. Each power module has a maximum charge current of 5 A.

1.4 Opening and Closing the Unit

[PENDING]
R
S
INPUT
T
N
Charger
BATTERY
Fig 1.3.3a Power Module Block Diagram
U
V
W
N
14
OUTPUT