Liebert 130 kVA Protective devices, Split Bypass, Protection against earth faults RCD devices

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User Manual

Hipulse - Single Phase ‘1+N’ UPS System

130 kVA - 110V

WARNING

Failure to follow adequate earthing procedures can result in electric shock hazard to personnel, or the risk of fire, should an earth fault occur.

3.1.6Protective devices

For safety reasons, it is necessary to install, external to the UPS, circuit breaking protective devices in the input a.c. supply and towards the battery. Given that every installation has its own characteristics, this chapter provides general useful information engineers, with knowledge of operating practices, of regulatory standards, and of the equipment to be installed.

Rectifier and bypass inputs:

Protection against excessive over currents and short circuits

These inputs must be protected, installing suitable protective devices at the distribution panel of the incoming main supply, considering that the protection should discriminate with overload capacity of the system (see Chapter 9: Specification - Electrical Characteristics).

Split Bypass :

In the case of a split bypass being used, separate protective devices should be installed in the incoming mains distribution panel.

The protective devices must be selected for the nominal input current, with respect to the UPS rating and the input a.c. supply voltage as given in table 3-1.

Protection against earth faults (RCD devices):

In the event of a differential (RCD) device being installed upstream of the input supply, one must take into account transient and steady state earth leakage currents that are produced during start-up of the UPS.

The presence of an RFI suppression filter inside the UPS, determines a residual earth current greater than 3.5mA and less than 1000mA.

Residual current circuit breakers (RCCB) must be sensitive to d.c. unidirectional pulse (class A) in the network and insensitive to transient current pulses.

They are identified by the symbols respectively.

These isolators must have an average sensitivity, possible adjustable between 0.3 and 1A.

It is recommended that the selectivity with every differential switch be verified both upstream of the input distribution board and downstream (towards the load).

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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