Specifications for 750 kW UPS

Voltage (V)	380	400	415	440	480
Connections	3–wire (L1, L2, L3, PE)*
Input voltage range (V)*	340-456	340-480	353-498	374-528	408-576
Frequency (Hz)	40 – 70
Nominal input current (A)	1201	1139	1097	1029	950
Maximum input current (A)*	1328	1276	1229	1153	1092
Input current limitation (A)	1335			1248	1140
Total harmonic distortion (THDI)	<3% at 100% load <4% at 50% load <9% at 25% load
Input power factor	0.99 at >40% load 0.98 at >20% load 0.97 at >10% load
Protection	Contactors
Ramp-in	Adaptive 1 – 40 secs
Connections	4–wire (L1, L2, L3, N, PE) or 3–wire (L1, L2, L3, PE)*
Bypass voltage range (V)	342-418	360-440	374-457	396-484	432-528
Frequency (Hz)	50 or 60
Frequency range (Hz)	Programmable: +/-0.1, +/-3, +/-10. Default is +/-3.
Nominal bypass current (A)	1151	1093	1054	994	909
Maximum short circuit rating	100 kA RMS*
Thyristor I²t (kA*s²)	7220* for systems with 1000 kW I/O cabinet 16245* for systems with 1500 kW I/O cabinet
BF2 magnetic trip	39 kA
Protection	Molded switch with trip for backfeed protection
Connections	4–wire (L1, L2, L3, N, PE) or 3–wire (L1, L2, L3, PE)
Overload capacity	150% for 1 minute (normal operation) 125% for 10 minutes (normal operation) 115% for 1 minute (battery operation) 110% continuous (bypass operation) 1000% for 100 milliseconds (bypass operation)
Output voltage tolerance	Balanced load: +/- 1% Unbalanced load: +/- 3%
Dynamic load response	+/- 5% after 2 ms +/- 1% after 50 ms
Output power factor	1
Nominal output current (A)	1140	1083	1043	984	902
Total harmonic distortion (THDU)	<2% at 100% linear load <3% at 100% non–linear load
Output frequency (Hz)	50/60 (synchronized to bypass), 50/60 Hz +/-0.1% (free-running)
Slew rate (Hz/sec)	Programmable: 0.25, 0.5, 1, 2, 4, 6
Output performance classification (according to IEC/ EN62040-3)	Double-conversion: VFI-SS-111
Load crest factor	Up to 3 (THDU < 5%)
Load power factor	0.7 leading to 0.5 lagging without derating
Charging power in % of output power	35% at ≤ 80% load 12% at 100% load
Maximum charging power (kW)	90 at 100% load 262 at <80% load
Nominal battery voltage (VDC)	480
Nominal float voltage (VDC)	546
End of discharge voltage (full load) (VDC)	384
End of discharge voltage (no load) (VDC)	420
Battery current at full load and nominal battery voltage (A)	1634	1634	1634	1634	1634
Battery current at full load and minimum battery voltage (A)	2043	2043	2043	2043	2043
Maximum battery backup time	Unlimited
Temperature compensation (per cell)	-3.3 mV per °C for T ≥ 25 °C 0 mV per °C for T < 25 °C
Ripple current	< 5% C20 (5 minutes backup time)
Battery test	Manual/automatic (selectable)
Deep discharge protection	Yes
Recharge according to battery temperature	Yes