Emerson 480VAC Power Supply User Manual


 
1
The Liebert NX is a true on-line, double conversion,
three-phase UPS system that delivers complete,
centralized power protection for mission-critical
systems.
Designed to meet the high availability power needs
of a wide variety of IT applications, the UPS com-
bines a rack form factor, advanced operating fea-
tures and low cost of ownership.
Increases growth flexibility with Softscale™
technology, plus the ability to parallel modules
for increased capacity and redundancy.
Achieves higher availability by reducing the
number of UPS units required to power your
data center.
Reduces total cost of ownership through the use
of longer life batteries and simplified preventive
maintenance.
OUTPUT
Voltage
480VAC, 60Hz,
3-phase, 3-wire plus ground
Voltage
Adjustment
Range
±5%
Voltage
Regulation
1% for balanced load
2% for 100% unbalanced load
Dynamic
Regulation
±5% deviation for 100% load step
±1% for loss or return of AC input
Transient
Response Time
Recover to ±5% of output voltage
within 1/2 cycle
Voltage
Distortion
For linear loads, 1% THD
Less than 4% THD for 100% nonlinear
loads without kVA/kW derating
Phasing
Balance
120° ±0.5° for balanced load
120° ±1° for 100% unbalanced load
Frequency
Regulation
±0.05% single module
±0.25% paralleled modules
Load Power
Factor Range
0.5 lagging to 1.0 without derating
Overload
125% of full load for 10 minutes
150% for one minute, with true
sinusoidal waveform
STANDARDS
Listed to UL 1778 UPS standards, and CSA certified.
Meets current requirements for safe high performance
UPS operation.
LIEBERT
®
NX
3-PHASE UPS: 40-120KVA, 60HZ, 480VAC - SITE PLANNING DATA
External Battery Cabinet
Battery
Manufacturer
Battery
Type
Dimensions
in. (mm)
Weight
lb. (kg)
Qty.
Battery
Cabinets
Battery Time (minutes)
40kVA 60kVA 80kVA 100kVA 120kVA
C&D
Technologies
UPS12-100MR
35.3x38.2x78.7
(897x970x2000)
1750
(794)
15
21795——
UPS12-150MR
2000
(907)
1127——
2 332013 9 7
UPS12-210MR
2500
(1134)
119116——
2 483121 15 11
Enersys HX205
35.3x38.2x78.7
(897x970x2000)
2620
(1188)
119117——
2 462820 15 12
General Specifications
INPUT
Voltage
480VAC, 60Hz
3-phase, 3-wire plus ground
Voltage Range
without derating
+15%, -25%
Frequency Range 57-63Hz
Current
Distortion
3% maximum reflected THD
at full load
Current Limit 140% of full load input current
Current
Walk-In
20 seconds to full load
Programmable, 0 to 30 seconds
Power Factor
>0.99 lagging at full load
>0.98 lagging at half load
Surge
Protection
Sustains input surges without damage,
per criteria listed in IEC 61000-4-5
ENVIRONMENTAL
Operating
Temperature
UPS: 32° to 104°F (0-40°C)
Battery: 68° to 86°F (20-30°C)
Non-Operating
Temperature
-13° to 158°F
(-25° to 70°C)
Relative Humidity 0-95% non-condensing
Operating
Altitude
Up to 6,500 ft. (2,000m)
without derating
Acoustical Noise (full load)
80kVA
<67dB at 80-104°F (27-40°C) ambient
<61dB below 80°F (27°C) ambient
120kVA
<69dB at 80-104°F (27-40°C) ambient
<63dB below 80°F (27°C) ambient