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Liebert NXL UPS
Operation and Maintenance Manual
250-300-400-800kVA
Page 66
Liebert NXL Model Size
Units
250
300
400
Input Parameters
Input Voltage to Rectifier
Vac
380/
400
default/ 415 - 3-phase, 3-wire plus ground
Input Voltage to Bypass
Vac
380/
400
default/ 415 3-phase, 4-wire
Input Voltage Range (Vac)
%
+/-10%
(*) -15% to -20%
(**) -20% to -30%
(***) <-30%
Input Frequency
Hz
50
Permissible Input Frequency Range
Hz
47 to 63
Input THDi at nominal voltage at
full load
%
<10% with 6-pulse and passive filter
<5% with 12-pulse and passive filter
Flexi Power Walk-In
sec
3 to 30 sec (selectable) in 1 sec. increments
Battery & DC Parameters
Battery Type
-
VRLA (Valve Regulated Lead Acid) or
FLA (Flooded Lead Acid)
Nominal Battery Bus
Vdc
396V @400Vac
Battery Float Voltage
Vdc
446V
End-Cell Voltage
Vdc/
cell
Selectable from 1.6 to 1.9 (for VRLA / Wet cells)
DC Ripple Voltage in Float and
Const V Ch. Mode
%
<1 (RMS value) < 3.4% Vpp
Temperature Compensated Battery
Charging
-
Standard (with optional temperature probe)
Output Parameters
Inverter Type
-
IGBT-based Sine-Sine PWM Controlled
Output Power
kW
225
270
360
Output Voltage
Vac
380/
400
default/ 415 , 3-ph, 4-wire plus ground
Output Voltage Regulation (%)
%
< 1% (3-phase RMS average)
Output Voltage Regulation (100%
Unbal. Load)
%
< 2% (3-phase RMS average)
Output Frequency
Hz
50
Output Frequency Regulation
%
± 0.1
Output THDu at Nominal Voltage
(Linear Load)
%
<2
Output THDu at nominal voltage
Including a 100kVA Non Linear
Load per EN 62040-3
%
2.5% (max)
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:
0.9 lag to Unity
Subject to maximum kW rating
at 0.95 Lead
Subject to maximum. kW rating
at 0.9 Lead
Subject to 12,5% kW derate or same rating and 10°C temp. derate
Voltage Displacement
° el
120° ±1° el (with 100% unbalanced load)
Compliance to EMC Class-A
Optional
100% continuous
110% for 60 minutes
125% for 10 minutes
Overload Conditions, 3 phase
% FL
150% for 1 minute
Table 4:
Electrical Specifications (250-300-400kVA UPS)
(*) The UPS will operate at full load, but the battery charge will be either reduced or Off (depending on input current).
(**) The UPS will operate at full load, but UPS may source share with the batteries (depending on input current).
(***) UPS will be in Battery mode
Содержание Liebert NXL series
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