Tripp Lite SU60KX manual Opening and Closing the Unit, Power Module Layout

1 Basic Operation (continued)

1.3Operating Principles (continued)

1.3.3Power Module Layout

R

S

INPUT

T

N

BATTERY Charger

U

V

OUTPUT

W

N

Fig 1.3.3a Power Module Block Diagram

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]

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