Inverter Output; Bypass Input; Table 13 Inverter Output; Table 14 Linear Load Derating - Liebert NX 10kVA Installation Manual

6.4.4

Inverter Output

Table 13 Inverter output
Rated Power
Rated voltage, VAC
Supply
Frequency, Hz
Rated Power, kVA
Rated Power, kW
Three -phase transient overload,
min. load
Voltage Regulation %
Frequency Regulation %
Maximum rate of change of
frequency, Hz/sec
Current rating of neutral cable, A
Table 14 Linear load derating
PF 0.5
K (200V) 1.00
K (208V) 1.00
6.4.5

Bypass Input

Table 15 Bypass input
Rated Power
Rated voltage, VAC
Supply
Rated Current, A
200VAC, A
208VAC, A
Bypass voltage tolerance %
Delay time to recognize bypass voltage
returned to window, sec.
Inverter output voltage window %
Frequency, Hz
Input frequency tolerance %
Maximum frequency slew rate, Hz/sec
Current rating of neutral cable, A
Bypass overload capacity
(all ratings)
10kVA
10
8
±1.0% three-phase RMS average for a balanced three-phase load
±2.0% three-phase RMS average for a 100% unbalanced load
Nominal frequency regulation is ±0.05% in single module mode,
and+/- 0.25% in parallel mode.
For single mode, the slew rate is adjustable from 0.1Hz/s to 3Hz/s
Lagging
0.6 0.7 0.8
1.00 1.00 1.00
1.00 1.00 1.00
10kVA
32
28
Upper limit: +10%, +15% or +20%
Lower limit: -10%, -20%, -30% or -40%
For single mode, the slew rate should be adjustable from 0.1Hz/s to 3Hz/s
15kVA
120/208
3-phase, 4-wire plus ground
50 / 60
15
12
10 minutes - 105-125% load
1 minute - 126-150% load
1.5 x input current
0.9 1.0 0.9
0.88 0.80 0.75
0.88 0.80 0.75
15kVA
120/208
Three-phase, 4-wire plus ground
48
42
2
± 10
50 / 60
± 10 or ± 20%; default ±10%
1.5 x input current
Time
Long-term operation:
10 minutes:
100milliseconds:
43
Specifications
20kVA 30kVA
20
16
Leading
0.8 0.7 0.6
0.73 0.72 0.71
0.73 0.72 0.71
20kVA 30kVA
64
56
Upper limit default: +15%
Lower limit default: -20%
Load
<135% load
135% - 170% load
1000% full UPS rated output current
30
24
0.5
0.71
0.71
96
83