Liebert 130 kVA user manual Normal Operation, Mains Failure, Return of power mains, Off-Battery

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User Manual

Hipulse - Single Phase ‘1+N’ UPS System

130 kVA - 110V

1.2.3System Control Philosophy

Normal Operation

During normal operation, i.e. when the UPS input supply is present and within specification, both the rectifier and inverter sections are active and the static switch is turned on to connect the inverter output to the critical load busbars. The battery circuit breaker is also closed and the battery is therefore permanently float charged at the d.c. busbar voltage level.

(1+N Parallel UPS System)

Note: As the unit outputs are connected in parallel, the System checks that the inverter control circuits are perfectly synchronised with one another and with the Bypass Mains in terms of both frequency and phase and that they have the same output voltages. Current supplied to the load is automatically divided among UPSs. A warning message appears while synchronisation is in progress.

A module's static switch cannot close until these conditions are satisfied.

Mains Failure

If the power mains has a failure or is out of tolerance the rectifier will go off automatically, while the Inverter will continue to operate on power from the battery for a period of time which depends on the load and the capacity of the battery. If the mains supply has not retuned within this time, the Inverter will go off automatically and an alarm message will appear on the UPS operator control panel display.

Critical load will not be interrupted in the event of a drop or return of the AC power mains.

Return of power mains

When the mains return within the required tolerance, the Rectifier will start up again automatically and gradually (power walk in), supplying power to the Inverter and recharging the battery at the same time. There will be no interruption of the critical load.

Off-Battery

If the battery system only is taken out of service for maintenance, it is disconnected from the rectifier/ charger and inverters by means of (an) external disconnect breaker(s). The UPS shall continue to function and meet all of the specified steady- state performance criteria, except for the power outage back-up time capability.

UPS Module fault

In the event of an Inverter fault, the Static Transfer Switch will automatically transfer the load onto the Bypass Mains with no interruption. In such an event, request qualified technical assistance.

(1+N Parallel UPS System)

In the event of a fault in a unit, the unit's Static Transfer Switch will automatically exclude the unit from the system. If the system is still capable of providing the required load, the remaining units will continue to supply the load with no interruption. When the units still present in the system are no longer capable of fulfilling power requirements, the load will automatically be transferred onto the MSS Bypass Mains. The load will be transferred with no interruption if the Inverters are synchronised with the network; if this is not the case, there will be an interruption lasting about 20 milliseconds.

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Contents Hipulse Single Phase ‘1+N’ UPS System Hipulse Single Phase ‘1+N’ UPS System Dear Customer Hipulse Single Phase ‘1+N’ UPS System Rev. No Revision details Hipulse Single Phase ‘1+N’ UPS System Registered Head Office Hipulse Single Phase ‘1+N’ UPS System East Zone Hipulse Single Phase ‘1+N’ UPS System Safety Procedure Hipulse Single Phase ‘1+N’ UPS System General Hipulse Single Phase ‘1+N’ UPS System General Introduction Hipulse Single Phase ‘1+N’ UPS System Operating Instructions Hipulse Single Phase ‘1+N’ UPS System Annexure Hipulse Single Phase ‘1+N’ UPS System Hipulse Module Design Single Module block diagramIntroduction Design ConceptBypass Supplies UPS Power switches configurationNormal Operation Return of power mainsOff-Battery UPS Module faultOverload Maintenance BypassSystem Expansion UPS Power Switch ConfigurationBattery circuit breaker Battery temperature compensationHipulse Single Phase ‘1+N’ UPS System Installation Procedure UPS location Battery locationEnvironmental considerations Mechanical Considerations Preliminary Checks Installation DrawingsOverall General Arrangement for 130kVA Single Phase UPS Cable Entry Details Module input cables Power CablingSystem Configuration Battery cablesCable Connections Safety earthCable rating General NotesSplit Bypass Protection against earth faults RCD devicesProtective devices Input Connections UPS BatteryCabling procedure Parallel 1+NAuxiliary Connections Input-module Parallel ConnectionsCable connections for 130 kVA 1Ph UPS +VE -VEAuxiliary Terminal Block detail Battery ControlControl cables Description Auxiliary Terminal Block X3 and X4 at UPSBack Feed Protection Battery ConnectionEmergency Stop Hipulse Single Phase ‘1+N’ UPS System UPS Operator Control / Display Panel Operator Control and Display PanelMimic indications Inverter control switchSingle module operator control panel Operator control panelOperator Panel and LCD Display Menu Control switchesBargraph Selection Output ParametersMenu Options EPO on UPS moduleOr. for Instanc e Map of screen display available to operatorMain Menu Window Default WindowLCD Display Panel Messages Initializing Window Info WindowAlarm / Warning Messages Option Selection ModeOn Static Bypass General notes Power SwitchesShutdown Location of Power Isolators Ecomode the message Load on Bypass will not appear Battery C.B. Open Bypass Switch Open Ecomode Normal Operation Your load is now powered via the Static Bypass systemYour load is now powered via the Static Bypass system Procedure for completely powering down the UPS UPS is now completely powered down Adding a single module to an existing system If YOU are not Sure What YOU are Doing Then do not do IT Ecomode INV OFF VIA Display Load on Bypass Setting the Battery Test Changing the current Date and Time Language SelectionHipulse Single Phase ‘1+N’ UPS System Safety Battery InstallationUPS Batteries Battery population Temperature considerationsIntroduction Battery protectionBattery Racks Connecting the BatteryBattery Supply To UPS Cabinet Battery circuit breaker Battery InstallationBattery Control and Power Connections Battery temperature Board LED Interpretation Display Panel InterpretationProcedure to carry out the reset see Operating Instructions Display Panel Messages Sr. No Display Message Alarm InterpretationBypass Switch Open BYP. Absent Battery Under Test BYP Xfer Count Block Hipulse Single Phase ‘1+N’ UPS System General + N SystemBattery 1+N System block diagram with Separate BatteriesInter-module control Installation procedureConnection of 1+N system parallel single bus cables Connection of EPO Push Button Operating Instruction System Start-up and shutdown procedures Separate BatteriesDefault window Hipulse Single Phase ‘1+N’ UPS System Complete system shutdown Display Panel message interpretation in 1+N SystemUPS Environmental UPS Mechanical CharacteristicsConformity and Standard C T I F I E R I N P U T M a I N S UPS Electrical CharacteristicsRated Power KVA 130 UPS Electrical Characteristics DC Intermediate CircuitV E R T E R O U T P U T UPS Electrical Characteristics Inverter OutputProtection, bypass line UPS Electrical Characteristics Bypass Input MainsHipulse Single Phase ‘1+N’ UPS System Hipulse Single Phase ‘1+N’ UPS System Hipulse Single Phase ‘1+N’ UPS System RAM Connections Remote Alarm Monitor220/240V AC 50 Hz UPSProtection TerminationIndication & Metering Bypass Isolation Cubicle
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