Electrical Specifications - Liebert 300 series Installation, Operaton & Maintenance Manual

S P E C I F I C A T I O N S

6.1 ELECTRICAL SPECIFICATIONS

The UPS shall meet or exceed the following
electrical specifications:
6.1.1 AC Inputs to UPS
Voltage Configuration: Three-Phase, 3-v&e-
plus ground with standard input isolation
transformer.
Voltage Range: +lO%, -15% of nominal.
Frequency: Nominal frequency ? 5%.
Power Factor: 0.80 lagging minimum at
nominal input voltage and full rated UPS
output load.
0.90 lagging with optional input filter.
Inrush Current: 800% of full load current
maximum.
Current Limit: 125% of nominal AC input
current maximum.
Input Current Walk-in: 20 seconds to full
rated input current maximum. Field
selectable 5 or 20 seconds.
Current Distortion: 30% THD at full load.
10% THD with optional input f&r.
Surge Protection: Sustains input surges
without damage per criteria listed in ANSI
6.1.2 AC Output UPS lnverter
Voltage Configuration: Three-Phase, 4-wire-
plus-ground.
Voltage Regulation: il% for balanced load.
Voltage Unbalance:
Balanced load +l%
unbalanced load +l%
20%
unbalanced load k2%
50%
100% unbalanced load 55%.
Voltage Adjustment Range: f5% manual
adjustment.
Frequency: Nominal frequency ?O.l%.
Frequency Slew Rate: 1.0 Hertz per second
maximum. Field selectable from 0.1 to 1.0
Hz per second.
Bypass Line Sync Range: f0.5, ?1.0,?3.0
Hertz. Field selectable.
Load Power Factor Range: 0.9 leading to 0.5
Output Power Rating: Rated kVA at 0.8
lagging power factor.
Voltage Distortion: 5% total harmonic
distortion (THD); 3% maximum for any
single harmonic, for linear loads.
Phase Displacement:
for 50% unbalanced load.
Voltage Transient Response:
load step f4%
20%
load step -k5%
30%
load step t8%
50%
loss or return of AC input power kl%
manual transfer of 100% load ~4%.
Transient Recovery Time: To within 1% of
output voltage within 50 milliseconds.
Overload Capability: 125% for 10 minutes
(without bypass source). 150% for 30
seconds (without bypass source).
Fault Clearing: Sub cycle current of at least
300%.