Technical data

UPS Unit Rating 250 300 400 500 600 800
12.4 Inverter output
Nominal apparent power @ PF 0.8,
lagging 40°C (kVA) 250 300 400 500 600 800
Nominal active power (kW) 200 240 320 400 480 640
Nominal output current (A) 362 435 580 725 870 1159
Nominal apparent and active power @ PF >0.8,
lagging or leading, 40°C See note (7)
Overload at nominal output voltage
and 0.8 PF for 10 min (%) 125
Overload at nominal output voltage
and 0.8 PF for 1 min (%)
(6)
150
Short circuit current capacity for 5 seconds (10ms) (%) 150 (200)
Nominal output voltage (V) 400 (380/415 selectable) 3Ph + n
Nominal frequency (Hz) 50/60 (selectable)
Voltage stability in steady state condition
for input DC variations and 100% load variations (%) ±1
Voltage stability in dynamic condition
for 100% nominal load step variations
or DC input variations (%) Complies with IEC/EN 62040-3, Class 1
Voltage stability in steady state for 100%
unbalanced loads (0, 0, 100) (%) ±3
Output frequency stability
In synchro with the mains (%) ±0.75 (1.5, 2.5, 6 selectable)
With internal quartz oscillator (%) ±0.05
Frequency slew rate (Hz/sec) <1
Output voltage distortion with 100% linear load (%) <3
Output voltage distortion @ reference
non linear load as for IEC/EN 62040-3 (%) <5
Load crest factor without derating (Ipk/Irms) 3:1
Phase angle precision with balanced loads (degrees) <±1
Phase angle precision with 100%
unbalanced loads (degrees) <±2
DC/AC efficiency
(2)
: Half load 93.5 94.0 94.0 94.0 94.0 94.0
Full load 94.0 94.5 94.5 94.5 94.5 94.5
Neutral conductor sizing see Chapter 6.5
Output power upgradability
with temperature: At 25°C (%) 110
At 30°C (%) 105
At 40°C (%) 100
12 Technical data (250 to 800 kVA)
MASTERGUARD Series SIII
UPS Systems from 60 to 800 kVA
22
MKA4CAT0UKSIII/Rev. 11-11/2004/UK
Tecnico-SIII-MG 10-11-2004 8:22 Pagina 22