Liebert 610 manual Load on Bypass, Circuit breaker abbreviations, Abbreviation Circuit Breaker

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Operation

3.3Modes of Operation

This section illustrates the flow of power through circuit breakers, switches and UPS components dur- ing various modes of operation. The same modes of operation apply to all configurations of the Liebert Series 610 UPS. Highlighted (thick) lines in the diagrams indicate power flow and power availability.

These illustrations show a three-breaker maintenance bypass because it is commonly used. Your installation may have a two-breaker, three-breaker or four-breaker maintenance bypass or none at all.

These illustrations do not show an alternate power source (generator) and automatic transfer switch (external to the UPS) that might be present at your installation.

Table 7 below lists abbreviations for circuit breakers used in this manual.

Table 7	Circuit breaker abbreviations
Abbreviation		Circuit Breaker

BFB		Bypass Feeder Breaker

BIB		Bypass Input Breaker

MBB		Maintenance Bypass Breaker

MBD		Module Battery Disconnect

MIB		Maintenance Isolation Breaker

RIB		Rectifier Input Breaker

3.3.1Load on Bypass

Load on Bypass, with the UPS not available, is shown in Figure 41. The UPS system could be in this mode of operation during either initial start-up or UPS system shutdown and isolation for maintenance.

NOTE

When the critical load is being supplied power from the bypass line, it is exposed to utility power disturbances.

Figure 41 Load on bypass (UPS not available)

THREE BREAKER MAINTENANCE BYPASS SWITCHBOARD

BFB	MBB
	Critical
	Load
	AC Output
BIB	MIB

UPS MODULE

Static

Switch

Disconnects

Static

Bypass

Switch

Bypass CB

	CONTROL POWER
	Controls
	RIB
	Rectifier/	Inverter
	Charger	Inverter
	Charger
	INPUT
	CB

MAIN INPUT

SWITCHGEAR

MBD

OUTPUT

CB

Battery

58

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Contents Series 610 UPS Battery Cabinet Precautions Table of Contents Maintenance SpecificationsFigures Tables Important Safety Instructions System Description Designed for Success ReliabilityOther Factors to Consider Safety Precautions Modes of Operation Operator Controls Options Customer Alarm Interface Temperature-Compensated ChargingBattery Load Testing Automatic RestartGeneral Component Descriptions Battery PlantUPS Module Controls Hardware Detailed Component DescriptionsSoftware Input Power Factor Rectifier/ChargerOperation Input Circuit BreakerBattery Charging Circuit Battery DisconnectBattery Charge Current Limiting Battery Equalize Charge CircuitNon-Linear Load Characteristics Unbalanced Load CharacteristicsInverter Output Regulation and Overload PerformanceStatic Switch Backfeed Protection Static BypassBypass Circuit Breaker Pulsed Parallel OperationTransfer and Retransfer Conditions Three Breaker Maintenance Bypass Switchboard Features Display Screen and Operator ControlsOperator controls, typical system 100kVA 500kVA 1000kVA Description FunctionSeries 610 UPS operator control panel Description FunctionMenu Tree Navigation Menu treeMaster Menu Screen Master menu screenOperation Input Metering Displays Monitor/Mimic Display ScreenOutput Metering Displays Item 7 Alarm Messages Status/Alarm Message AreasItem 6 Status Messages Monitor/Mimic display example Utility fail Walk-In Display Screen Walk-in display screenStatus Reports Screens Status reports screenPresent Status Event HistoryHistory Status History status report screenBattery Cycle Monitor System StatusBattery cycle monitoring summary screen System Configuration Screens System configuration screensMaximum Auto-Retransfer Attempts Maximum auto-retransfer attempts screenDate Date screenTime Time screenAuto Dial Auto dial screenLanguage Selection System OptionsContinuous Duty Static Switch Optional Alarm messages Additional alarm messagesRemote Monitor Standard Remote Monitor Indications ChannelAlarm Limit Settings Screen Overload AlarmBattery Discharging Low BatteryBattery Shutdown 60 Minutes Battery Rating 100%Battery Rating Temperature Limit Setting OptionalLoad Transfer Procedures Screen Load transfer procedure screenStart-Up Procedures Screen Refer to 3.4.1 Start-Up Procedure for more detailsShutdown Procedures Screen Battery Time ScreenBattery time screen 15-minute discharge Upper Limit Actual Lower Limit Elapsed Time MinutesMeter Calibration Screen Status Reports ScreensBattery Equalize Screen Battery equalize screenAlarm and Status Messages Status Messages Alarm and status message screenAlarm Messages Abbreviations used in alarm messagesAlarm messages and corrective actions AC InputUPS System UPS System CoolingAlarm messages-summary Alarm Message Special FunctionsWorldwide Reporting Communication InterfacesAuto-Dial Local Reporting to a Terminal Local Reporting to a MonitorSite Reporting SiteScan or Snmp Requesting InformationSeries 610 terminal commands Remote Monitor PanelSeparate / Simultaneous Outputs Keys FunctionCircuit breaker abbreviations Load on BypassAbbreviation Circuit Breaker OK to Transfer Load on bypass UPS availableLoad on UPS bypass available Momentary overload through pulse-parallel static switch Momentary OverloadsInput Power Failure-Load on Battery Input power fail-load on batteryOff Battery Load on UPS-battery not availableRefer to 3.4.4 Shutdown Procedures Emergency Module OffRemote Emergency Power Off Emergency power offRefer to 3.3.9 Maintenance Bypass Module ShutdownLoad on maintenance bypass two breakers Load on maintenance bypass three breakers Manual Procedures Start-Up ProcedureStart-Up Procedure Set the Static Switch Disconnect or to OFF open Start-up procedures Start-Up Procedure Load Transfer Procedures Load transfer procedures screenMaintenance Bypass Load Transfers Shutdown Procedures Module Shutdown Procedure Shutdown ProceduresRemote Emergency Power Off Repo Local Emergency Modules Off LemoBattery Exercise Procedures Battery exercise control screen above and results belowAutomatic Operations Overloads Without Transfer1000% 150%Automatic Transfers to Bypass Overload Condition Automatic Retransfers to UPSAutomatic Transfers to Bypass UPS System Faults Enabling Automatic Restart Automatic Restart OptionalSequence of Operation Maintenance Liebert Global Services Maintenance Agreements The Signature ProgramProfessional Start-Up TrainingRecord Log Routine MaintenanceAir Filters Limited Life Components Battery Maintenance Battery Safety PrecautionsAvertissement Matching Battery Cabinets Optional Number of Cells Battery Voltage VDC Nominal FloatBattery voltage record Battery retorque valuesRack-Mounted Batteries Detection of Trouble Torque specifications unless otherwise labeledTorque Requirements Reporting a Problem Upstream Feeder Circuit Breaker Setting InspectionsCorrective Actions Recommended Test EquipmentRating Power factor pf KVAKVA Specifications applicable to environment Environmental ConditionsAdjustments Battery OperationElectrical Specifications Page Technical Support/Service Company Behind the ProductsLocations United States