Installation guide

1027574 UPS 450-550 kVA (2x225 - 2x275 kVA) 127
Revision E User’s and Installation Guide
10.2.3 Environmental
Output Voltage Balance 3% for 100% maximum load imbalance (linear load)
Output Voltage Phase Displacement 3° for 100% maximum load imbalance (linear load)
Output Transients ±5% for 100% load step or removal
Frequency Regulation ±0.1 Hz free running
Synchronous to Bypass Bypass within voltage limits of +5%, –8% of output setting; bypass
within ±3 Hz
Frequency Slew Rate 0.5 Hz per second maximum
Overload Capability 110% for 10 minutes
125% for 30 seconds
150% for 10 seconds
Max battery charging current 240 A
Operating Temperature 0 to 40°C without derating. The recommended operating tempera-
ture is 25°C.
Operating Altitude Maximum 1000m at 40°C without derating
Storage Temperature –25 to +60°C, excluding batteries (prolonged storage above 40°C
causes rapid battery self-discharge)
Relative Humidity (operating and storage) 5% to 95% maximum noncondensing
Acoustical Noise 78 dB at a 1m distance, A weighted
EMI Suppression Meets EMC EN 62040-2:2006 specification
Electrostatic Discharge (ESD) Immunity Meets IEC 61000-4-2 specification