TOSHIBA
23
Operating the UPS
Battery Backup Time and Discharge Process
The UPS batteries provide about 5-7 minutes of back-up time depending on the
1600EP
unit
kVA rating. These times are valid when the unit is operating under full load and at the rated
power factor. When these models are operating at half load, the batteries can provide about
15-20 minutes of back-up time. The exact length of these times will depend on the UPS
model used, condition of the batteries, amount and type of load, temperature and other
variables. See battery backup time in 'Standard Specifications' beginning on pages 18-21.
The following illustration graphically shows the battery discharge process at full load conditions.
Battery Low Voltage Tolerances
Excessive discharge will cause the UPS battery voltage to drop. The chart shown below lists the
voltage level at which each UPS low-voltage alarm will sound and also at what level the low-
voltage condition will cause the unit to automatically shut down.
UPS Capacity
3.6kVA
6.0kVA
8.0kVA
10kVA
14kVA
18kVA
Nominal voltage (Vnom)
216Vdc
216Vdc
288Vdc
288Vdc
288Vdc
288Vdc
Alarm voltage (Vlow)
192Vdc
192Vdc
246Vdc
246Vdc
246Vdc
246Vdc
Shutdown voltage (Vmin)
170Vdc
170Vdc
227Vdc
227Vdc
227Vdc
227Vdc
Curre
nt
V
oltage
Vnom
Vlow
Vmin
Imax
Imin
Shutdown
Voltage
100%
20%
0%
Battery Capacity
Содержание UE3G2L036C61T
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