Technical data

21
MASTERGUARD Series SIII
UPS Systems from 60 to 800 kVA
MKA4CAT0UKSIII/Rev. 11-11/2004/UK
UPS Unit Rating 250 300 400 500 600 800
12.1 Rectifier input
Nominal input voltage (V) 400 3Ph (380 – 415 selectable)
Tolerance on voltage assuming
float @ 2.27V per cell (%)
(1)
+15/-12
Min. input voltage without battery discharge (%)
(1)
-21
Nominal frequency (Hz) 50/60 (selectable)
Tolerance on frequency (%) ±5
Maximum input power @400V, Recharge Mode (kVA) 351 421 562 702 842 1123
Power factor @400V, PFC Mode (±0,02) >0.9 >0.9 >0.9 >0.9 n.a. n.a.
Power factor @400V, Float Mode >0.8
Input current distortion @ maximum input power (%) <5
Walk in/Soft start (programmable) (seconds) 10 (1-90)
Rectifier Hold-Off (programmable) (seconds) 1 (1-180)
Inrush current / Imax input ratio
(8)
<4
Efficiency of rectifier in float
(2)
: Half load % 97.9 97.9 97.9 97.9 97.0 97.0
Full load % 97.9 97.9 97.9 97.9 97.4 97.4
12.2 Rectifier output
Battery nominal voltage @ recommended
number of cells, see 12.8 (V) 480
Output voltage: Float for SLA @ 20°C (V) 545
Recharge (V)* 576
*Only for wet stationary lead batteries
Battery float voltage temperature
compensation (direct sensing) -0.11% per °C
Current ripple into battery for a 10 min
autonomy as per VDE0510
(3)
<0.05C10
Voltage stability in steady state condition for 100%
load variations or allowed input parameters variations (%) <1
Voltage ripple in float condition (%) <2
DC current supplied to inverter in float (A) 391 466 622 777 932 1243
Battery recharge current setting range (A) 15-80 15-80 20-110 25-135 25-160 30-210
Maximum DC current (A) 500 600 800 1000 1200 1600
12.3 Inverter input
Nominal voltage on float (V) 545
DC voltage range (V) 396-600
DC current when inverter at full load (0.8PF)
and battery at end of discharge (A) 538 645 855 1069 1283 1710
12 Technical data (250 to 800 kVA)
Tecnico-SIII-MG 10-11-2004 8:22 Pagina 21