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4-8 Compaq 3000 Series UPS Operation and Reference Guide
Time
Voltage
Operating Range
Nominal
Utility Voltage
Upper Limit
Lower Limit
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