Chapter 8 Product Specifications 53
NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual
Note:
1. At low input voltage the UPS recharge capability increases with load decrease (up to the maximum capacity indicated).
2. Max currents listed are for EOD voltage of 1.67V/cell for 240 cells
3.Need to satisfy DC bus voltage for inverter operation of 300-576 Vdc.
8.6 Electrical Characteristics (Inverter Output)
Table 8-6 Inverter output (to critical load)
Item Unit
Rated power (kVA)
30 ~ 200
Rated AC voltage
1
Vac
380/400/415 (three-phase four-wire, with neutral reference to the bypass neutral)
Frequency
2
Hz
50/60
Overload
%
105, long term
110, 60min
125, 10min
150, 1min
>150, 200ms
Fault current
%
310% current limination for 200ms
Non-linear load
capability
3
%
100
Neutral current capability
%
170
Steady state voltage
stability
%
± 1
Transient voltage
response
4
%
± 5
Tatal harmonic voltage
%
<1 (linear load), <4 (non-linear load
3
)
Synchronisation window
Hz
Rated frequency ±5
Slew rate (max change
rate of synchronisation
frequency)
Hz/s
1; setting range: 0.1 ~ 3 (single unit), 0.2 (parallel system)
Note:
1. Factory set to 380V. 400V or 415V selectable by commissioning engineer.
2. Factory set to 50Hz. 60Hz selectable by commissioning engineer. 3. IEC 62040-3 (1.4.58) crest factor 3:1.
4. IEC 62040-3 also for 0% ~ 100% ~ 0% load transient. Transient recovery time: return to within 5% of steady state output
voltage within half a cycle
8.7 Electrical Characteristics (Bypass Input)
Table 8-7 Bypass input
Item Unit
Rated power (kVA)
30 (NXr 30K-B)
30 (NXr 30K) ~ 160
200
Rated AC voltage
1
Vac
380/400/415, three-phase four-wire, sharing neutral with the rectifier input and
providing neutral reference to the output
Rated
current
380V
400V
415V
A 45
227
303
A 43.5
217
290
A 42
208
278
Overload
%
110, long term
125%
150%
Upstream protection,
bypass line
N/A
Thermomagnetic circuit breaker, rated up to 125% of nominal output current. IEC
60947-2 curve C
Current rating of neutral
cable
A
1.7 × In
Frequency
2
Hz
50/60
Transfer time (between
bypass and inverter)
ms
Synchronous transfer:
≤
1
Asynchronous transfer (default): 15 (50Hz), 13.3 (60Hz); or 40, 60, 80, 100
selectable
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