User manual

54 Chapter 8 Product Specifications
NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual
Item Unit Rated power (kVA)
Bypass voltage tolerance %Vac
Upper limit: +10, +15 or +20, default: +15
Lower limit: -10, -20, -30 or –40, default: -20
(delay time to accept steady bypass voltage: 10s)
Bypass frequency
tolerance
% ±10 or ±20, default: ±10
Synchronisation window Hz Rated frequency: ±5
Note:
1. Factory set to 380V. 400V or 415V selectable by commissioning engineer.
2. Factory set to 50Hz. 60Hz selectable by commissioning engineer
8.8 Efficiency, Heat Losses And Air Exchange
Table 8-8 Efficiency, heat losses and air exchange
Item Unit Rated power (kVA)
30 40, 60 90, 100 120 150, 160 200
Overall efficiency
Normal mode (double-conversion) % Up to 96
Inverter efficiency (DC/AC) (battery at nominal voltage 432Vdc and full-rated linear load)
Battery mode % Up to 96
Heat losses & air exchange
Normal mode kW 1.2 2.4 3.6 4.8 6 7.2
No load kW 0.6 1.2 1.8 2.4 3.0 3.6
Maximum forced air cooling (front
intake, rear exhaust)
L/sec 144 288 432 576 720 864
Note: 400Vac input and output, battery fully charged, full-rated linear load