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Table 47 Rectifier input
Parameter 15-90kVA
Rated AC Input Voltage
3
208/120V or 220/127V, 60Hz, 3-Phase, 4-Wire Plus Ground
Input Voltage Range, Startup/Operating 96-138V or 102-146V or -20%, +15% (Full Load)
Input Voltage Range, Operating 72-138V or 76-146V or -40%, +15% (<80% Load)
Frequency 50 or 60Hz (40-70Hz Range)
Power Factor 0.99 Full Load, 0.98 Half Load
Input Current, Rated
1
45/90/135/180/225/270 A
Input Current, Max
2
60/120/180/240/300/360 A
THD 3% THDI Full Load
1. At rated load and 208V input with battery charged (EN 62040-3 / 50091-3).
2. At rated load and 208V input with battery charging at maximum power (EN 62040-3 / 50091-3).
3. Three-phase, four-wire and shared neutral with the bypass input.
Table 48 Battery DC intermediate circuit
Parameter
15 - 90kVA
Battery Bus Voltage Nominal: 288VDC (VRLA Float charge is 324V) 24 jars of 12V VRLA
Number of Lead-Acid Cells 144 = [24 x 6 cell (12V) blocks], nominal
Float Voltage
2.25V/cell, selectable from 2.2 - 2.3V/cell
Constant current and constant voltage charge mode
Temperature Compensation -3.0mV/°C, selectable from 0 to -5.0mV/°C around 77°F (25°C) or 86°F (30°C) or inhibit
Ripple Voltage
≤1%
Ripple Current, ~ C
10
≤5%
Boost Charge
Voltage
2.35 V/cell (selectable from 2.30-2.40V/cell)
Constant current and constant voltage charge mode
Boost Control
• Float-boost current trigger 0.050 C
10
(selectable 0.030-0.070)
• Boost-float current trigger 0.010 C
10
(selectable 0.005-0.025)
24 hr safety time-out (selectable 8-30 hr)
Boost charge mode inhibit also selectable
End of Discharge
1.63 V/cell (selectable from 1.60-1.750V/cell)
Auto Inverse EOD voltage x discharge current mode
(The end of discharge voltage increases at low discharge currents)
Battery Charge
2.4 V/cell (selectable from 2.3-2.4V/cell)
Constant current and constant voltage charge mode
Programmable auto trigger or inhibit of boost mode
Battery Charging Power
1
Max Current (Adjustable)
2
UPS (kVA) 15 30 45 60 75 90
Battery Charging Power (kW) 2.25 4.5 6.75 9 11.25 13.25
Max Charging Current (A) 11 22 33 44 55 66
1. At low input voltage, the UPS recharge capability increases with load decrease (up to the maximum capacity indicated).
2. Maximum currents listed are for end of discharge voltage of 1.67 V/cell for 144 cells.