Liebert UPS System User Manual

Page 15

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Chapter 1 Introduction

9

Parameters of Liebert iTrust UPS are given in Table1-1

Capacity 20kVA

30kVA

40kVA

60kVA

Model UL33-0200L

UL33-0300L

UL33-0400L

UL33-0600L

Input Voltage

380/400/415V(line-to-line voltage)

AC Power Input

Three-phase three-wire

Power Factor

>0.99

Harmonic Current

<4%(Voltage distortion lower than 2% at rated load)

Voltage Range

+15%~-20%

Lowest operating voltage: -45%

Input current limiting

Input Current: <115%In for continuous operation; 115~140%In
for 5 minutes; 140~165%In for 1minute; Current limiting at
current over 165%In(In is the rated output current without
deration)

Rectifier

input

frequency range

50Hz ±10%

Input Voltage

380/400/415V(line-to-line voltage)

Input Voltage Range

±

10%

AC Power Input

Three-phase four-wire

Bypass input

Frequency range

50Hz±10%

Voltage regulation

(balanced load)

380/400/415V±1%

(±5% adjustable)

Voltage transient response

±

5%(0~100%linear load)

Transient recovery time

<60ms

Voltage distortion(linear load)

THD<2%(line-to-neutral voltage)(battery float charge state,
rated balance load)

Voltage distortion(nonlinear
load)

THD<5%(line-to-neutral voltage)(battery float charge state,
rated balance load)

Power Factor

0.8(lagged)

Frequency Syn. Range

50Hz±2Hz

Frequency regulation(Battery
mode)

±

0.1%

Phase Displacement (Three-
Phase)

120± 1°(balanced load or unbalanced load)

Voltage unbalance rate at
100% unbalance load

±

2%(battery float charge state)

Output

Frequency slew rate

<1Hz/s

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