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7.5 Electrical Characteristics (Intermediate DC Circuit)
Table 7-5 Battery
Intermediate DC circuit
Model
30U-90 42U-120 30U-120 30U-180
42U-210
Rated power (kVA)
Unit
90
120
120
180
210
Number of lead-acid
cells
Nominal
216 (6cells x 36 12V battery block)
Maximum
240 (6cells x 40 12V battery block)
Minimum
192 (6cells x 32 12V battery block)
Float voltage
V/cell
2.3V/cell
Constant current and constant voltage charge mode
Temperature
compensation
mV/ /cl -3.0 (Option)
Ripple voltage
% V float ≤1
Ripple current
% C10
≤5
Boost voltage
VRLA
2.35V/cell
Constant current and constant voltage charge mode
EOD voltage
V/cell
1.67V/cell
Battery charge
V/cell
Limit current and constant voltage charge mode
Floating Voltage 2.3V/cell
Boost charging 2.35V/cell
Battery charging
power
1
max current
A
8 / per power module (adjustable)
Note:
1. At low input voltage the UPS recharge capability increases with load decrease (up to the
maximum capacity indicated).
7.6 Electrical Characteristics (Inverter Output)
Table 7-6 Inverter output (to critical load)
Rated power (kVA)
Unit 30 ~ 210
Rated AC voltage
1
Vac
380/400/415 (three-phase four-wire, with neutral
reference to the bypass neutral)
Frequency
Hz
50/60 Auto Selectable
Overload
%
105%~110% for 60min
110%~120% for 10min
121%~150% for 1min
>150% for 200ms
Neutral current capability
%
170%
Steady state voltage stability %
± 1 (balanced load), ± 2 (100% unbalanced load)
Total harmonic voltage
%
<1 (linear load), <4 (non-linear load3)
Synchronization window
+/- 1Hz, +/- 2Hz, +/- 4Hz (default: 4Hz)
Note:
1. Factory setting is 400V. 380 or 415V is selectable by commissioning engineer.
