Tripp Lite S3M30K-30K4T Owner's Manual

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38

4. Operation

4.1 Operation Modes

The UPS is a double-conversion on-line UPS that may operate in the following alternative modes:

4.1.1 AC Line Mode

The rectier/charger derives power from the AC mains and supplies DC power to the inverter while oating and boosting

charge to the battery simultaneously. Then, the inverter converts the DC power to AC and supplies to the load.

SINGLE INPUT: Mains Input DUAL INPUT: Mains Input and Bypass Input

Figure 4-1: AC Line Mode

4.1.2 Battery Mode (Stored Energy Mode)

If the AC mains input power fails, the inverter, which obtains power from the battery, supplies the critical AC load. There

is no power interruption to the critical load. The UPS will automatically return to Normal Mode when AC recovers.

SINGLE INPUT: Mains Input DUAL INPUT: Mains Input and Bypass Input

Figure 4-2: Battery Mode

Maintenance Breaker

On-line Mode

Battery Mode

On-line Mode

AC Input

Bypass Input

Output

Maintenance Breaker

Static Bypass

Rectier

Battery Breaker

Inverter

Output Breaker

Bypass Breaker

Battery Input

Input Breaker

Static Bypass

AC Input

Output

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Tripp Lite S3M30K-30K4T 3-Phase 208V UPS + Input Isolation Transformer Kit - 480V Delta to 208V Wye, 30kVA/kW, External Batteries Required