4-8Compaq 3000 Series UPS Operation and Reference Guide

Nominal

Voltage

Operating Range

Upper Limit

Lower Limit

Utility Voltage

Time

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

Nominal

Voltage

Operating Range

+ 20%

- 20%

Utility Voltage

Time

Figure 4-5. Utility voltage fluctuation indicating a shift in nominal voltage range may be necessary

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Compaq 3000 Series manual Nominal