CSI 16261 - Static Uninterruptible Power Supply Systems
Liebert UPStation GXT UPS
GUIDE SPECIFICATIONS
6,000 and 10,000 VA
Single - Phase Uninterruptible Power Supply System
1.0
1.1
GENERAL
SUMMARY
This specification defines the electrical and mechanical characteristics and requirements
for a continuous-duty single-phase, solid-state, uninterruptible power system. The
uninterruptible power system, hereafter referred to as the UPS, shall provide high-quality
AC power for sensitive electronic equipment loads.
1.2
STANDARDS
The UPS shall be designed in accordance with the applicable sections of the current
revision of the following documents. Where a conflict arises between these documents
and statements made herein, the statements in this specification shall govern.
208V and 240V Units
UL 1778
FCC Part 15, Class A
C-UL (to CSA 22.2 No. 107.1)
National Electrical Code (NFPA 70)
IEC 801-2, Level 4
IEC 801-3, Level 3
IEC 801-4, Level 4
IEEEc62.41
ISTA Procedure 1B
230V Units
EN 50091-1
CE compliance mark, For both Low Voltage and EMC Directives
TUV/GS Listed
EN 55022, Class A
EMC- EN50091-2 (Incorporating)
IEC 801-2, Level 4
IEC 801-3, Level 3
IEC 801-4, Level 4
IEC 801-5, Level 3
ISTA Procedure 1B
Liebert GXT UPS
6,000/10,000 VA
1
Guide Specification
SLI-23145 (10/ 99) Rev. 6
1.3.
SYSTEM DESCRIPTION
1.3.1
Modes of Operation
The UPS shall be designed to operate as a true on-line system in the following
modes:
A. Normal - The critical AC load is continuously supplied by the UPS inverter.
The input converter derives power from a utility / mains AC source and supplies
DC power to the inverter. The battery charger shall maintain a float-charge on
the battery.
B. Battery - Upon failure of utility / mains AC power, the critical AC load is
supplied by the inverter, which obtains power from the battery. There shall be no
interruption in power to the critical load upon failure or restoration of the utility /
mains AC source.
C. Recharge - Upon restoration of utility / mains AC power, after a utility /
mains AC power outage, the input converter shall automatically restart and
assume supplying power to the inverter; and the battery charger shall recharge
the battery.
D. Automatic Restart - Upon restoration of utility / mains AC power, after a
utility / mains AC power outage and complete battery discharge, the UPS shall
automatically restart and assume supplying power to the critical load; and the
battery charger shall automatically recharge the battery.
E. Bypass - The integral bypass shall be a static make-before-break type, and
perform an automatic transfer of the critical AC load from the inverter to the
bypass source, in the event of overload, over temperature, or internal fault
conditions. The UPS shall perform an automatic retransfer of the critical AC load
from the bypass source to the inverter, upon return to nominal ratings from
overload or over temperature condition. The UPS shall include provisions to
allow for manual activation of the bypass by the user.
1.3.2
Design Requirements
A. Voltage: Nominal input/output specifications of the UPS shall be:
Input: The UPS shall accept the following voltages without damage:
0 - 320 VAC, 50/60 Hz, single-phase, 2-wire-plus- ground.
Output:
230 VAC +3%, 50/60 Hz, single-phase, 2-wire-plus-ground, switch
selectable (208V, 220V, 230V, 240V); with optional
internal isolation transformers for 230V L-N or
208/120V or 240/120V applications.
B. Output Load Capacity: Specified output load capacity of the UPS at 0.7
lagging power factor shall be:
Liebert GXT UPS
6,000/10,000 VA
2
Guide Specification
SLI-23145 (10/ 99) Rev. 6
MODEL
Output Voltage
Output Capacity
GXT10000T
220/230/240 or 220/110, 230/115, 240/120
10 kVA/7kW
GXT10000T
208 or 208/120
9 kVA/6.3kW
GXT6000T
220/230/240 or 220/110, 230/115, 240/120
6 kVA/4.2kW
GXT6000T
208 or 208/120
5.4 kVA/3.8kW
C. Internal Battery: The battery shall consist of valve regulated, non-spillable,
lead acid cells.
D. Reserve Time: Minimum 10 minutes for 10kVA units and minimum 7
minutes for 6kVA units, at full resistive load with ambient temperature 25°C
(77°F).
E. Battery Recharge: The UPS shall contain a battery recharge rate designed to
prolong battery life. Recharge time shall be seven (7) hours maximum to 95%
capacity after a complete discharge into full load.
1.3.3
Performance Requirements
1.3.3.1 AC Input to UPS
A. Voltage Configuration:
The UPS shall operate at these values (+5VAC) without drawing
power from the batteries.
230 VAC nominal; single phase, 2 wire plus ground; variable based
upon output loading:
LOAD
6000/10000 VA MODELS
100 - 90%
186 VAC to 280 VAC
90 - 70%
159 VAC to 280 VAC
70 - 30%
139 VAC to 280 VAC
30 - 0%
119 VAC to 280 VAC
B. Frequency: UPS auto senses input frequency and will operate
within the following frequency specifications without drawing power
from the batteries.
50 Hz Applications: 46.6 – 52.4 Hz
60 Hz Applications: 57.1 – 62.9 Hz
Liebert GXT UPS
6,000/10,000 VA
3
Guide Specification
SLI-23145 (10/ 99) Rev. 6
C. Input Power Factor: 0.98 lagging minimum at rated load and
nominal input voltage.
D. Surge Protection: The UPS units shall sustain input surge without
damage per criteria listed in IEEEc62.41 for 208V and 240V units,
and IEC 801 - 5, Level 3 for 230V units.
E. Input Current Distortion (THD): <15% THD at rated load at
nominal input voltage.
1.3.3.2 AC Output, UPS Inverter
A. Voltage Configuration:
230 VAC nominal, 50/60 Hz, single-phase, 2-wire-plus-ground,
switch selectable (208V, 220V, 230V, 240V); with optional internal
isolation transformers and appropriate output terminal blocks for
230V L-N or 208/120V or 240/120V applications.
B. Voltage Regulation: + 3% steady state, +7% steady state with
optional transformer.
C. Frequency Regulation:
50Hz Nominal: -7%/+5% Synchronized to mains.
60Hz Nominal: + 5% Synchronized to utility.
+ 0.1 Hz free running or on battery operation.
D. Frequency Slew Rate: 1.0 Hz per second maximum.
E. Voltage Distortion:
Without optional transformer: <4% total harmonic distortion (THD)
typical into a 100% linear load, <7% THD typical into a 100% nonlinear load with crest factor ratio of 3:1.
With optional transformer: <5% total harmonic distortion (THD)
typical into a 100% linear load, <8% THD typical into a 100% nonlinear load with crest factor ratio of 3:1.
F. Load Power Factor Range: 0.65 lagging to 1.0 (unity).
G. Output Power Rating: Rated VA at 0.7 lagging power factor.
H. Inverter Overload Capability: 112 - 130% of full load for 10
seconds, 131 - 200% of full load for 8 cycles. Automatic transfer to
bypass shall occur if these parameters are exceeded.
I. Voltage Transient Response: + 11% maximum in line mode,
+ 15% maximum in battery mode for any load step up to and
including 100% of the UPS rating.
J. Transient Recovery Time: To steady state output voltage within 90
milliseconds.
Liebert GXT UPS
6,000/10,000 VA
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Guide Specification
SLI-23145 (10/ 99) Rev. 6
1.4
ENVIRONMENTAL CONDITIONS
A. Ambient Temperature
Operating: 0O C to +40O C (+32O F to +104O F) for altitudes 0 to 1500 meters
(0 to 5,000 ft.) above sea level
0O C to +35O C (+32O F to +95O F) for altitudes 1500 to 3000 meters (5,000 to
10,000 ft.) above sea level
25O C (+ 77O F) for optimum battery performance
Storage: -15O C to +50O C (+ 5O F to +122O F)
20O C (+ 68O F) for optimum battery storage.
B. Relative Humidity
Operating: 0 to 95% non-condensing.
Storage: 0 to 95% non-condensing.
C. Altitude:
3,000 m (10,000 ft. max.), without power derating when operated within the
temperature specified in section 1.4.A.
D. Audible Noise
Noise generated by the UPS under any condition of normal operation shall not
exceed 55dB for 6kVA units, and 65dB for 10kVA units; when measured at 1
meter from the surface of the UPS, “A” weighted.
E. Electrostatic Discharge
The UPS shall be able to withstand an electrostatic discharge compliant to IEC
801- 2, level 4 (15 kV through air, 8 kV contact) without damage and shall not
affect the connected load.
1.5
USER DOCUMENTATION
The specified UPS system shall be supplied with one (1) user's manual. Manuals shall
include installation drawings and instructions, a functional description of the equipment
with block diagrams, safety precautions, illustrations, step by step operating procedures,
and general maintenance guidelines.
1.6
WARRANTY
The UPS manufacturer shall warrant the UPS against defects in materials and
workmanship for two (2) years. The warranty shall cover all parts and in-factory labor.
Optional full coverage on site maintenance contracts and optional full coverage on site
extended maintenance contracts shall be available from Liebert Corporation.
Liebert GXT UPS
6,000/10,000 VA
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Guide Specification
SLI-23145 (10/ 99) Rev. 6
1.7
QUALITY ASSURANCE
1.7.1
Manufacturer Qualifications
A minimum of twenty year's experience in the design, manufacture, and testing
of solid-state UPS systems is required. The manufacturer shall be certified to
ISO 9001.
1.7.2
Factory Testing
Before shipment, the system shall be fully and completely tested to assure
compliance with the specification. These tests shall include operational
discharge and recharge tests on the internal battery to assure performance.
2.0
PRODUCT
2.1
FABRICATION
All materials and components making up the UPS shall be new, of current manufacture,
and shall not have been in prior service except as required during factory testing. The
UPS shall be constructed of replaceable subassemblies. All relays shall be provided with
dust covers.
2.1.2
Wiring
Wiring practices, materials, and coding shall be in accordance with the
requirements the standards listed in section 1.2 and other applicable codes and
standards. All wiring shall be copper.
2.1.3
Cabinet
The UPS unit comprised of: input rectifier, battery charger, inverter, and battery
consisting of the appropriate number of sealed battery cells; shall be housed in a
NEMA type 1 enclosure and meet the requirements of IP20. The UPS cabinet
shall be cleaned, primed, and painted with the manufacturer's standard color.
Dimensions and weight shall be:
MODEL
GXT6000T-230
GXT6000T-230X
GXT6000T-240X
GXT6000T-208X
Liebert GXT UPS
6,000/10,000 VA
DIMENSIONS (W x D x H)
260mm x 558mm x 800mm
(10.3” x 22.0” x 31.5”)
260mm x 558mm x 800mm
(10.3” x 22.0” x 31.5”)
260mm x 558mm x 800mm
(10.3” x 22.0” x 31.5”)
260mm x 558mm x 800mm
(10.3” x 22.0” x 31.5”)
6
WEIGHT
99kg (218lbs.)
139kg (306lbs.)
139kg (306lbs.)
142kg (313lbs.)
Guide Specification
SLI-23145 (10/ 99) Rev. 6
GXT6000T-208
GXT10000T-230
GXT10000T-230X
GXT10000T-240X
GXT10000T-208X
GXT10000T-208
2.1.4
260mm x 558mm x 800mm
(10.3” x 22.0” x 31.5”)
340mm x 640mm x 965mm
(13.4” x 25.3” x 38.0”)
340mm x 640mm x 965mm
(13.4” x 25.3” x 38.0”)
340mm x 640mm x 965mm
(13.4” x 25.3” x 38.0”)
340mm x 640mm x 965mm
(13.4” x 25.3” x 38.0”)
340mm x 640mm x 965mm
(13.4” x 25.3” x 38.0”)
99kg (218lbs.)
187kg (412lbs.)
244kg (538lbs.)
244kg (538lbs.)
247kg (544lbs.)
187kg (412lbs.)
Cooling
The UPS shall be forced air cooled by internally mounted, two-speed fans. Fan
power shall be provided from the internal DC supply. Air intake shall be through
the front of the unit and exhausted out the rear.
2.2
COMPONENTS
2.2.1
Input Converter
2.2.1.1 General
Incoming AC power shall be converted to a regulated DC output by the
input converter for supplying DC power to the inverter. The input
converter shall provide input power factor correction and input current
distortion reduction.
2.2.1.2 AC Input Current Limit
The input converter shall be provided with AC input current limiting
whereby the maximum input current shall be limited to 125% of the full
load input current rating.
2.2.1.3 Input Protection
The UPS shall have built-in protection against undervoltage, overcurrent,
and overvoltage conditions including low-energy lightning surges,
introduced on the primary AC source. The UPS shall sustain input surges
without damage per criteria listed in IEC 801 - 05, Level 3. Additionally,
the UPS clamping voltage shall be 320V peak and energy dissipation
shall be 80 joules, for 2 milliseconds. The UPS shall have input circuit
protectors.
Liebert GXT UPS
6,000/10,000 VA
7
Guide Specification
SLI-23145 (10/ 99) Rev. 6
2.2.1.4 Battery Recharge
The UPS shall contain a battery recharge rate designed to prolong battery
life. The battery shall be constant current charged to restore capacity,
and then shall be constant voltage charged to maintain the battery in a
fully charged state. Recharge time shall be seven (7) hours maximum to
95% capacity. There shall be DC overvoltage protection so that if the DC
voltage exceeds the pre-set limit, the UPS shall shutdown automatically
and the critical load shall be transferred to bypass.
2.2.2
Inverter
2.2.2.1 General
The UPS inverter shall be a pulse-width-modulated (PWM) design
capable of providing the specified AC output. The inverter shall convert
DC power from the input converter output, or the battery, into precise
sine wave AC power for supporting the critical AC load.
2.2.2.2 Overload
The inverter shall be capable of supplying current and voltage for
overloads exceeding 100% and up to 200% of full load current. A visual
indicator and audible alarm shall indicate overload operation. For
greater currents or longer time duration, the inverter shall have electronic
current-limiting protection to prevent damage to components. The
inverter shall be self-protecting against any magnitude of connected
output overload. Inverter control logic shall sense and disconnect the
inverter from the critical AC load without the requirement to clear
protective fuses.
2.2.2.3 Inverter DC Protection
The inverter shall be protected by the following DC shutdown levels:
DC Overvoltage Shutdown
DC Undervoltage Shutdown (End of Discharge)
DC Undervoltage Warning (Low Battery Reserve); factory set at
2 minutes
2.2.2.4 Output Frequency
The output frequency of the inverter shall be controlled by an oscillator.
The oscillator shall maintain the inverter output frequency to + 0.1 Hz of
nominal when not synchronized to the utility/mains source.
2.2.2.5 Output Protection
The UPS inverter shall employ electronic current limiting and an output
circuit protector.
Liebert GXT UPS
6,000/10,000 VA
8
Guide Specification
SLI-23145 (10/ 99) Rev. 6
2.2.2.6 Battery Over Discharge Protection
To prevent battery damage from over discharging and extend battery life,
the UPS control logic shall automatically raise the shutdown voltage set
point; dependent upon output load at the onset of battery operation.
2.2.3
Display and Controls
2.2.3.1 General
The UPS shall be provided with a microprocessor-based unit status
display and controls section designed for convenient and reliable user
operation. The monitoring functions such as status and alarm indicators
shall be displayed on an LED display.
2.2.3.2 System Indicators
The UPS shall contain a row of LED's to indicate UPS load and battery
capacity and five single LED's to indicate UPS status as described below:
The "Fault" indicator shall illuminate red to indicate a UPS fault
condition.
The "Battery" indicator shall illuminate amber to indicate the
UPS is operating from battery power.
The "Bypass" indicator shall illuminate amber to indicate the
UPS is operating on Bypass power.
An audible alarm shall be provided and activated be any of the
above alarm conditions.
The "UPS ON" indicator shall illuminate green to indicate the
UPS inverter is operating and supplying power.
The "AC Input" indicator shall illuminate green to indicate the
UPS is operating from utility / mains power.
2.2.3.3 Controls
UPS start-up and shutdown operations shall be accomplished by the
"On" and "Off" push buttons located on the front panel of the UPS. The
"On" push button shall be a means to turn the UPS on and shall also
serve as a means to manually test the battery, to reset active visual and
audible alarms, and to allow manual transfers of the load from bypass
power to the UPS inverter. The "Off" push button shall allow manual
transfers of the load from the inverter to bypass power. Pressing the
"Off" push button twice within a four second time period shall
completely shutdown the UPS and its connected load.
2.2.4
On-Line Battery Test
The UPS shall be provided with an automatic biweekly battery test feature. The
test shall ensure the capability of the battery to supply power to the inverter while
loaded. If the battery fails the test, the UPS shall display a warning message to
indicate the batteries need replaced. The battery test feature shall be user
accessible by the push button located on the front of the unit and with optional
Liebert Power Surveillance software.
Liebert GXT UPS
6,000/10,000 VA
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Guide Specification
SLI-23145 (10/ 99) Rev. 6
2.2.5
Bypass
2.2.5.1 General
A static make-before-break type bypass circuit shall be provided as an integral
part of the UPS. The bypass control logic shall contain an automatic transfer
control circuit that senses the status of the inverter logic signals, and operating
and alarm conditions. This control circuit shall provide a transfer of the load to
the bypass source, without exceeding the transient limits specified herein, when a
malfunction occurs within the UPS.
2.2.5.2 Automatic Transfers
The transfer control logic shall automatically activate the bypass,
transferring the critical AC load to the bypass source, after the transfer
logic senses one of the following conditions:
UPS overload
UPS over temperature
Internal Fault condition
Once overload condition is reduced, the load shall be automatically
transferred back to inverter power.
2.2.6
Internal Battery
Valve regulated, non-spillable, lead acid cells shall be used as a stored-energy
source for the specified UPS system. The battery shall be housed internal to the
UPS cabinet and sized to support the inverter at rated load and power factor, with
ambient temperature of 25O C (77O F); for a minimum of 7 minutes reserve time
for 6kVA units, and a minimum of 10 minutes reserve time for 10kVA units. The
expected life of the battery shall be 3 - 5 years or a minimum 250 complete
discharge cycles. The battery shall be capable of being replaced by trained
Liebert-authorized engineers.
2.2.7.
Output Distribution
2.2.7.1 General
Output distribution shall be via a compression-lug terminal block, located on the
rear of the unit; using customer supplied wiring in accordance with national and
local electric codes.
2.2.7.2 Optional Transformer Configurations
Units with a suffix containing an “X” shall contain internal isolation transformers
(xfmr) and shall be configured as follows:
Models with a –230X suffix shall contain an isolation xfmr and shall have
a 3 pole output terminal block labeled L, N, E; for 220/230/240V
applications.
Liebert GXT UPS
6,000/10,000 VA
10
Guide Specification
SLI-23145 (10/ 99) Rev. 6
Models with a –240X suffix shall contain an isolation xfmr and shall have
a 4 pole output terminal block labeled L1, L2, N, G; for 220/110, 230/115,
or 240/120V applications.
Models with a –208X suffix shall contain an isolation xfmr and shall have
a 5 pole output terminal block labeled L1, L2, L2A, N, G; for
208/120Vapplications.
2.2.8
Communications
The UPS shall contain a DB9 socket on the rear panel to allow UPS status
communications to a computer system. The DB9 shall contain photo couplers to
signal on battery and low battery operational status. The UPS shall also be
capable of receiving a signal from the connected host system to initiate a UPS
shutdown. This signal shall be a +5 V to +12 V (RS232 level) that must remain
for > 1.6 second duration. Additionally, it shall also communicate via serial
communications using Liebert ESP II protocol. Communications protocol shall
be Liebert ESP II, level 1 compliant; with the following exceptions:
Liebert ESP II, level 1 items not supported:
- Input amperes
- Battery amperes
- Minutes
- Hours
- Date
- Month
- Input Undervoltage Startup fail
- Seconds
- Day of Week
- Year
The pin out configuration of the DB9F connector shall be:
Pin
1
2
3
4
5
6
7
8
9
Assignment Description
Low Battery (Open Collector: +V)
UPS TxD
UPS RxD
Remote Shutdown (5-12V DC,1.0 mA max.); on battery operation
Common
Remote shutdown (Short to Pin 5); any mode operation
Low Battery (Open Emitter: -V)
Utility / mains Fail (Open Emitter: -V)
Utility/Mains Fail (Open Collector; +V)
Maximum voltage and current on pins 1, 7, 8, 9 shall be 80 VDC, 10.0 mA
maximum.
2.2.9
Optional Communications
The UPS shall contain one communication slot (IntellislotTM) to allow the
operator to field install one optional communication card. The IntellislotTM shall
be designed to provide simple installation where electrical connections are made
via a 26-pin edge card connector. Separate cards shall allow the UPS to
communicate via either Ethernet SNMP, connected directly to the LAN; or
AS/400 (dry-contact) communications. Once the SNMP card is installed, the
serial communications shall be disabled in the DB9 socket; however the photo-
Liebert GXT UPS
6,000/10,000 VA
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Guide Specification
SLI-23145 (10/ 99) Rev. 6
coupler signals (on battery, and low battery) shall remain active. The AS/400
option shall contain contact closures rated for 1A at 24VDC/120VAC for the
following conditions:
-Line Loss
-Low Battery
-On Bypass
-UPS Failure
-Summary Alarm
2.2.10 Optional External Battery Cabinet
The UPS shall allow extended battery run time capability, through a terminal
block located on the rear panel to allow for connection of external battery
cabinet(s). The battery cabinet(s) shall be used in parallel with the internal
battery for extended power outage reserve time. Each battery cabinet shall
contain valve regulated, non-spillable, lead acid cells, housed in a separate
cabinet that matches the UPS cabinet styling. Each external battery cabinet shall
contain a 6-pole terminal block to allow for connection to the UPS and for
paralleling additional battery cabinets. The terminal block contacts shall be
labeled “positive (+)”, “negative (-)”, and “ground (earth)”. For connection to
the UPS, the end user will supply their own cable between the UPS and battery
cabinets in accordance with national and local electric codes. Each battery
cabinet shall contain a circuit breaker to provide individual cabinet overcurrent
protection and isolation. The external battery cabinet(s) shall increase power
outage reserve time when operating with ambient temperature of 25OC (77O F).
NOTE: These Guide Specifications comply with the format outlined by the Construction
Specifications Institute per CSI MP-2-1 and CSI MP-2- 2.
Liebert GXT UPS
6,000/10,000 VA
12
Guide Specification
SLI-23145 (10/ 99) Rev. 6