Emerson 250-400kVA manual Electrical specifications, Liebert NXL Model Size 250, Input Parameters

					SPECIFICATIONS
Table 6	Electrical specifications
Liebert NXL Model Size		250		300		400
Input Parameters
	Input Voltage to Rectifier, VAC		480V 3-phase, 3-wire
	Input Voltage to Bypass, VAC		480V 3-phase, 3- or 4-wire
	Permissible Input Voltage Range, VAC			70% to 110%
	Input Frequency, Hz		60
	Permissible Input Frequency Range, Hz			55 to 65
	Input THDi at nominal voltage at full load, %	<10% with 6-pulse and passive filter
	Input Power Factor at nominal voltage		>= 0.92
	Flexi Power Walk-In, sec	3 to 30 (selectable) in 1 sec. Increments
Battery & DC Parameters
	Battery Type	VRLA (Valve Regulated Lead Acid) or FLA
			(Flooded Lead Acid)
	Nominal Battery Bus, VDC			480V
	Battery Float Voltage, VDC			540V
	End-Cell Voltage, VDC		384 (for VRLA / FLA)
	DC Ripple Voltage in float & Const V Ch.mode, %		<1 (RMS value) < 3.4% Vpp
	Temperature Compensated Battery Charging		Standard (with temperature probe)
Output Parameters
	Inverter Type	IGBT-based Sine-Sine PWM Controlled
	Output Power, kW	225		270		360
	Output Voltage			480VAC, 3-ph, 4-w
	Output Voltage Regulation, %		< 1% (3-phase RMS average)
	Output Voltage Regulation (100% Unb. Load)		< 2% (3-phase RMS average)
	Output Frequency, Hz		60
	Output Frequency Regulation, %		± 0.1
	Output THDu at Nominal Voltage (Linear Load), %		<2%
Output THDu at nominal voltage Including a 100kVA Non Linear				2.5% (max)
	Load per EN 62040-3, %
	Capacity to Handle Step Load, %			0-100 or 100-0
	Transient Recovery (Linear Loads), %, msec	within 5% peak to peak in one-line cycle
	Capacity to Handle Leading PF Load		Up to 0.8 with the following ratings:
	a - 0.5 lag to 0.9 lag		a - Subject to maximum kVA rating
	b - 0.9 lag to Nom		b - Subject to maximum kW rating
	c - at 0.95 Lead		c - Subject to maximum. kW rating
	d - at 0.9 Lead	d - Subject to 12,5% kW derate or same rating
			and 10°C temp. derate
	e - at 0.8 Lead	e - Subject to 25% kW derate or 12,5% kW derate and
			10°C Temp. Derate
	Voltage Displacement, ° el	120° ±1° el (with 100% unbalanced load)
	Compliance to FCC Class-A			Standard
			110% for 60 minutes
	Overload Conditions, % FL		125% for 10 minutes
				150% for 1 minute

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