Battery Times For The Prestige 3000 - Powerware 9 Prestige Series User Manual

3 x 100 WATTS x 1.4 = 420 VA
If the total load requirements of the equipment exceeds the capacity of
the UPS, you must either reduce the number of pieces of equipment, or
use a UPS with a larger load capacity.
When deciding on which pieces of equipment to remove from the UPS,
select equipment that has a lower priority for power protection.
Computers, monitors, and modems typically have a higher priority
because they could be processing or transmitting data when a power
outage occurs.

Battery Times for the Prestige 3000

During a power failure, the UPS battery supplies power to your
equipment, providing time to complete computing activities prior to
UPS shutdown. The duration of this time period is directly related to the
UPS battery configuration. By adding battery cabinets, you can
customize the UPS to provide enough battery time for normal processing
activities.
*
Powerware 9 Prestige Series User's Guide (3000 VA)
®
3 COMPUTERS
100 WATTS
EACH
420 VA + 720 VA + 50 VA = 1190 VA (Total Load Requirements)
Figure 2. Volt-Amperes Calculation Example
Load (VA) Load (VA)
Load (W) Load (W)
at .7 PF*
400 280
800 560
1200 840
1600 1120
2000 1400
2500 1750
3000 2100
Typical Power Factor (PF)
:
www.powerware.com
3 MONITORS
2 AMPS
EACH
3 x 2 AMPS x 120 = 720 VA
Approximate Battery Time (in Minutes)
1 Cabinet 2 Cabinets
72 150
36
23
16
12
8
6.5
Introduction
EXTERNAL
MODEM
50 VA
50 VA
3 Cabinets
227
79 122
53 82
38 61
30 48
23 37
17 29
3