Liebert NX UPS System user manual Inverter output to critical load

Page 83

Technical Specifications

Table 34 Battery

 

 

 

 

Intermediate DC Circuit

 

 

 

 

 

Rated Power,

 

Unit of

 

 

 

 

 

 

 

 

 

 

 

 

kVA

 

Measurement

 

10

 

 

15

 

 

20

 

 

30

Battery Bus

 

VDC

 

 

Nominal: 480V (VRLA Float charge is 540V)

 

Voltage

 

 

 

 

 

Range: 400V - 616V

 

 

 

 

 

 

 

 

Number of Lead-

Acid Cells

 

 

 

 

 

 

 

 

 

 

 

 

Nominal

 

 

 

 

 

240 = [40 x 6-cell (12V) blocks]

 

Maximum

 

 

 

 

 

264 = [44 x 6-cell (12V) blocks]

 

Float Voltage

 

V/cell (VRLA)

 

 

2.25 V/cell (selectable from 2.2 –2.3V/cell)

 

 

 

Constant current and constant voltage (IU) charge mode

 

 

 

 

Temperature

 

mV/°C/cl

 

- 3.0 (selectable 0 to – 5.0 around 25°C or 30°C. or inhibit)

Compensation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ripple Voltage

 

% V float

 

 

 

 

 

≤1

 

 

 

 

 

Ripple Current

 

% C10

 

 

 

 

 

≤5

 

 

 

 

 

Boost Voltage

 

V/cell (VRLA)

 

 

2.35 V/cell (selectable from 2.30-2.40V/cell)

 

 

 

Constant current and constant voltage (IU) charge mode

 

 

 

 

 

 

 

 

- float-boost current trigger 0.050 C10 (selectable 0.030-0.070)

Boost Control

 

 

 

- boost-float current trigger 0.010 C10

(selectable 0.005-0.025) with

 

 

 

 

 

24 hr safety timeout (selectable 8-30 hr)

 

 

 

 

 

 

 

- boost mode inhibit also selectable

 

End Of

 

 

 

 

1.63 V/cell (selectable from 1.60~1.75 V/cell

 

 

V/cell (VRLA)

 

Auto Inverse EOD voltage x discharge current mode

 

Discharge

 

 

 

 

 

 

(The end of discharge voltage increases at low discharge currents).

 

 

 

 

 

 

 

 

 

2.4 V/cell (selectable from 2.3-2.4V/cell)

 

Battery Charge

 

V/cell

 

Constant current and constant voltage (IU) charge mode

 

 

 

 

Programmable auto trigger or inhibit of boost mode

 

Battery

 

kW

 

2.5

 

 

5

 

 

5

 

 

7.5

Charging Power*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

max current

 

A

 

3.75

 

 

7.5

 

 

7.5

 

 

12

(adjustable) 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* At low input voltage

the UPS recharge capability increases with load decrease (up to the maximum capacity indicated)

1. Max currents listed are for EOD voltage of 1.67 V/cell for 240 cells.

 

 

 

 

 

 

 

 

Table 35 Inverter output to critical load

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unit of

 

 

 

 

 

 

 

 

 

 

Rated Power, kVA (kW)

Measurement

10 (8)

 

15 (12)

 

20 (16)

 

 

30 (24)

Rated AC Voltage 1

 

VAC

 

380/400/

415 V (three-phase, four-wire with neutral

 

 

 

 

 

 

 

 

referenced to the bypass neutral)

 

Frequency 2

 

 

Hz

 

 

 

 

 

50 / 60

 

 

 

 

 

 

 

 

 

 

 

 

110% for 60 min

 

Overload

 

 

% Rated

 

 

 

 

125% for 10 min

 

 

 

 

 

 

 

150% for 1 min

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

>150% for 200 msec

 

Fault Current

 

 

% Rated

 

 

340% current limitation for 200 msec

 

Non linear load capability 3

 

% Rated

 

 

 

 

 

100%

 

 

 

Neutral current capability

 

% Rated

 

 

 

 

 

170%

 

 

 

Steady state voltage stability

%

 

±1 (balanced load), ±2 (100% unbalanced load),

Transient voltage response 4

%

 

 

 

 

 

± 5

 

 

 

Total Harmonic Voltage

%

 

 

< 1 (linear load), < 4 (non linear load 3)

Distortion (THDV)

 

 

 

 

 

 

 

 

 

 

 

 

 

Synchronisation - Window

 

 

 

Rated frequency ± 2Hz (selectable ± 0.5 to ± 3Hz)

Slew Rate (Max change rate

 

 

 

 

 

 

 

1 Hz/sec

 

 

Hz sec

 

 

selectable 0.1 to 3Hz/s (single UPS)

 

of synch frequency)

 

 

 

 

 

 

 

 

 

0.2Hz/sec (paralleled UPS)

 

 

 

 

 

 

 

 

 

 

Inverter Voltage Tolerance

 

%V (AC)

 

 

 

 

 

±5

 

 

 

1.Factory set to 400V – 380 or 415V selectable by commissioning engineer.

2.Factory set to 50Hz; 60 Hz selectable by commissioning engineer. Frequency converter operation also selectable.

3.EN 50091-3 (1.4.58) crest factor 3:1

4.IEC 62040-3 / EN 50091-3 also for 0-100-0% load transient. Transient recovery time: return to within 5% of steady state output voltage within half a cycle.

75

Page 82 Page 84
Image 83
Page 82 Page 84
Contents Liebert NX UPS Page Table of Contents Dual Bus System UPS MULTI-MODULEINSTALLATIONOperator Control Panel and Display Operating ProceduresOPTIONS-FORASSEMBLY Inside the UPS Cabinet Technical SpecificationsFigures Tables Options Model Identification Feature Set for Region InputOutput Aust/NZConformity and Standards Safety PrecautionsBattery Voltage Exceeds 400VDC User-Serviceable PartsPreliminary Checks IntroductionStorage External Battery RoomLocation UPS RoomMoving the Cabinets PositioningSystem Cabinets 2 10 to 30kVA UPSExternal Protective Devices UPS Output External BatteryEarth Leakage RCD Distance from floor to connection point on the equipment Power CablesMaximum steady state AC and DC currents Common Input Connections Cable TerminationOutput System Connections Control Cables and Communication Monitor Board FeaturesInput Dry Contacts X3 Ancillary Control and AlarmsMaintenance Bypass Cabinet Interface Dry ContactsJumper connection for BCB interface External Circuit-Breaker InterfaceJ28 Output Dry ContactsOutput dry contact relays +12V J13 J21X6 Analog Input Interface Emergency Power Off InputX5 Auxiliary DC Power Output X7 External Battery Temperature Detector InterfaceSerial Ports RS232-1 and RS232-2 External Bypass Switch InterlockBattery Start Facility Battery Start ButtonBattery Installation Hazardous battery voltage present behind covers SafetyBattery Cabinet Name W2 L=5m Name W1 L=30m Battery Temperature Sensor OptionalMoving the Battery Cabinets Cable W2 is packed with the temperature sensorGeneral Arrangement Drawings Battery cabinet bottom cable entry locationBottom cable entry Battery cabinet internal layout Item # Item Name Battery Power CablesConnection Principles Fitting the Batteries Battery ControlConnecting the Battery Battery Room DesignX21 GeneralX23 X24 Monitor Board X24Distribution Cabinet Cabinet InstallationParalleled UPS Modules External Protective Devices Power CablesControl Cables Intermodule Control Hot-Standby UPS ModulesInput Distribution Upstream Dual Bus System Parallel Board DBS Cable X2-2 X1-1 Parallel System Control WiresExtended Dual Bus Synchronization Option DBS Interface Box Parallel Board X2-2 X1-1 Parallel SystemInstallation Drawings General arrangement-10-30kVA UPS module External Battery Input Output Main Input Bypass Input NXe 10-30kVA Top View Internal battery layout and connecting-GP12120 F2 12AH/12V Internal battery layout Split-Bypass Input Battery Temperature Compensation Static Transfer SwitchSocket Outlet Redundant Control Power Supply BoardMulti Module UPS-1+N Modes of Operation Parallel Redundancy Mode System Expansion Bypass ModeMaintenance Mode Manual Bypass ECO Mode Single UPS OnlyNormal Function Battery Management-Set During CommissioningBattery Protection settings by commissioning engineer UPS operating modes Power SwitchesRotary switch configurations UPS Startup Start-Up ProcedureIndicator State Verify Switching Between Operation Modes Powering Down the UPS Switching the UPS from Normal to Maintenance BypassPowering Down the UPS and Maintaining Power to Load Auto Restart Emergency Shutdown With EPOChanging the Current Date and Time Command PasswordLanguage Selection Isolating One Module in a Multi-Module System LED Function Status Inserting One Module into a Multi-Module SystemButton Function UPS control and display panel componentsComponent # Function Audible Alarm Buzzer Mimic Power FlowMenu key Icons and their meaning Direct Access Push Buttons KeysLCD Monitor and Menu keys Displayed on the front LCD. When not activated, Load System Battery RecordsLanguage Settings Command Version When configured, input transformer voltages areMenu Type Item Type Explanation Detailed Description of Menu ItemsUPS system window Descriptions of UPS menus and data window itemsNumber to be dialed to send an alarm notification Message Description / Suggested Action if any UPS messagesBypass voltage exceeds the limit UPS is confirmed to overload and the overload times out UPS messages Prompt Meaning Dynamic Energy Flow Chart and UPS Help ScreenPrompt Pop-Up Windows Prompt windows, meaningsDefault screen Default Screen SaverTerminal Name Definition Battery Ground Fault DetectionProtection AC Fan Redundant Fan for Power ModuleFan120 Fan120OC Web Card data summary window OC Web Card SNMP/HTTP Network Interface CardRelay card jumpers Relay Card pin configurationRelay Card Multiport-4 CardPin Description SiteNet MultiPort4 Intellislot pin assignmentAssignment OC485 Web Card Modbus, Jbus, IGM Net Remote Alarm MonitorDust Filter for 10-30kVA Dust filter replacementOverall efficiency, heat losses and air exchange Environmental characteristicsConformity and Standards Compliance with European, international standardsRectifier AC input mains Mechanical characteristicsInverter output to critical load Bypass mains input Technical Specifications Technical Specifications Page That Ne tIti Ti n
Top Page Image Contents