20 - 80 kVA parallel UPS systems
User’s and Installation Manual
1018390
Revision C
49
4.7 Cooling air requirements
Q=300 x P/t, where: Q=air flow in m3/h,
P=power losses in kW, t=temp. rise in celcius, which
means that each kW of losses needs an airflow of
300 m3/hour trough a room to keep temp raise at 10
celcius max.
5. Standards
5.1 Safety
IEC 60950, EN 50091-1-1 (1996)
5.2 Emissions
EN 50091-2 (1995)
5.3 Immunity
EN 50091-2 (1995)
6. DC circuit
6.1 Battery type
Valve regulated Lead Acid; 48 pcs. 12 V blocks with
5 or 10 years design.
6.2 Battery charging
Advanced Battery Management™ or traditional float
charging
6.3 Nominal battery voltage
2x288 V (2x144 cells)
6.4 DC voltage range
252 - 329 V (1.75 VDC - 2.28 VDC)
6.5 Battery charging current
max. 8 A (40-80 kVA)
max. 6 A (20-30 kVA)
External battery cabinets with sealed lead-acid batteries.
Note!
A Battery cabinet F consists of two cabinets, total width is 1034 mm.
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