Compaq 2000 Bedienungsanleitung PDF herunterladen (Seite 51)

4-8 Compaq 2000 Series UPS Operation and Reference Guide

Figure 4-4. Optimal—Utility voltage fluctuating within the UPS operating

range

Operating Range

Utility Voltage

+ 20%

- 20%

Time

Voltage

Nominal

Figure 4-5. Utility voltage fluctuation indicating a shift in nominal voltage

range may be necessary

Operating Range

Utility Voltage

+20%

- 20%

-35%

Time

Voltage

Nominal

Extended

Range

Figure 4-6. Utility voltage fluctuation indicating a possible need for

extended range setting

To match the utility voltage, the UPS operating range can be modified in two

ways:

■ If the utility voltage differs from the currently configured nominal

voltage, but stays within a ±20% band (see Fig 4-5), consider shifting

the nominal voltage parameter selection to match the measured utility

voltage range.

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Compaq 2000 Bedienungsanleitung Seite 51