60 NS3000 UPS 60KVA~120KVA User Manual
7.4.2 Electrical Characteristics (Intermediate DC Link)
Table 7.6 Battery
Items
Unit
Parameters
Battery bus
voltage
Vdc
Rated
：
±240V
Quantity of lead-
acid cells
Nominal
40=[1 battery(12V)] ,240=[1 battery(2V)]
Float charge
voltage
V/cell
（
VRLA
）
2.25V/cell(selectable from 2.2V/cell
～
2.35V/cell)
Constant current and constant voltage charge mode
Temperature
compensation
mV/
℃
/cl
3.0(selectable:0~5.0)
Ripple voltage
％
≤1
Ripple current
％
≤5
Equalized
charge voltage
VRLA
2.4V/cell(selectable from : 2.30V/cell~2.45V/cell)
Constant current and constant voltage charge mode
Final
discharging
voltage
V/cell
（
VRLA
）
1.65V/cell(selectable from: 1.60V/cell~1.750V/cell)
@0.6C discharge current
1.75V/cell (selectable from: 1.65V/cell~1.8V/cell)
@0.15C discharge current
(EOD voltage changes linearly within the set range
according to discharge current)
Battery Charge
V/cell
2.4V/cell(selectable from : 2.3V/cell~2.45V/cell)
Constant current and constant voltage charge mode
Battery Charging
Power Max
Current
kW
10%* UPS capacity (selectable from : 1~20% * UPS
capacity)
Summary of Contents for NS3000 Series
Page 6: ......
