Liebert Series 610 user manual Operation Scenarios/Transfer Procedures

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Operating Instructions

4.2.13Operation Scenarios/Transfer Procedures

Refer to the section listed below each figure for the operational procedure to perform the function indicated.

Figure 9 From start-up to normal operation, loads to be split between two distribution feeders

	FROM:		TO:
Initial Conditions Prior to Startup		Normal Operation
System 1	System 2	System 1	System 2

M1

M1

SS1

SS2

M2

Tie Open

Tie

Load 1 Load 2

See 4.1 - Initial System Start-Up.

M2

M1

M1

SS1

SS2

M2

M2

Tie Open

Tie

Load 1 Load 2

LEGEND: Mx = Module

SSx = Static Bypass Switch

Figure 10 From combined loads operation to loads split between two feeders

M1

FROM:

Combined Loads Operation

System 1

System 2

M1

SS1

SS2

M2

M2

M1

TO:

Normal Operation

System 1

System 2

M1

SS1

SS2

M2

M2

Tie

Tie Closed	Tie Open
	Tie

Load 1 Load 2Load 1 Load 2

See 4.2.6 - Returning an Isolated System to Normal	LEGEND: Mx =	Module
Operation - End Combined Loads Operation.	SSx =	Static Bypass Switch

Figure 11 From continuous tied systems to loads split between two systems

M1

FROM:

Continuous Tied Systems

System 1

System 2

M1

SS1

SS2

M2

M1

TO:

Normal Operation

System 1

System 2

M1

SS1

SS2

M2

M2

Continuous Tie operation for module out of service

	Tie Closed	Tie Open
Tie		Tie
Load 1	Load 2	Load 1	Load 2

See 4.2.11 - Returning Parallel Systems to Normal	LEGEND: Mx =	Module
Operation - End Continuous Tie.	SSx =	Static Bypass Switch

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Contents Continuous POWER-TIE Configuration Page Table of Contents Initial System Start-Up 4.2 Basic Operation Operating InstructionsSystem Flexibility FunctionInter-System Isolation and Reliability Basic Dual-Bus Power-Tie one-line diagram Power-Tie systems fault isolation issues Power-Tie systems control interface diagram Operational Description Control System FeaturesIntersystem Synchronizing Momentary Tie OperationMomentary Tie Transfer Controls Continuous Tie Intersystem Sync and Power SharingTie System Components Continuous Tie/Transfer/Parallel ControlModes of Operation Power-Tie system one-line diagram Checking for Phase, Voltage, and Capacity Continuous Power-TieSelecting a Line Sync Source Synchronizing the UPS SystemsControl panel layout Load Transfers Between UPS Systems Separating Tied SystemsCombined Loads on One System to Continuous Tie Operation Combined Loads on One System from Continuous Tie OperationDesign Criteria Line Sync Signal Power-Tie system fault isolation issues Power-Tie systems fault tolerance Transfer Operation Improper User OperationTie Operation What Happens If a Failure Occurs During a Power Transfer Tie Circuit Breaker or Logic FaultsRecommendations Tie Circuit Breaker Selection Hardware FailuresMimic Panel Load Transfer Controls Transfer Function Available Transfer Control DisabledTransfer Function Available OK to Transfer Load 1 to System Transfer Function Available OK to Transfer Load 2 to SystemControl Inhibits Continuous Tie ControlManual Controls Maintenance Procedures Isolating Each UPS System Normal Transfer Operation ConfigurationsInitial System Start-Up Basic OperationTransfer of Load Between Two Systems Maintenance Procedures Tie Control Logic Components Maintenance Procedures Maintaining Power-Tie ComponentsAbnormal Operations Trouble RecoveryImproper Transfer Circuit Breaker FailureContinuous Tie-Systems Normal Operating ConfigurationTying the UPS Systems Continuous Parallel Operations Abnormal Operations Isolation for Maintenance Power-Tie system one-line diagram Operation Scenarios/Transfer Procedures Combined Loads Operation See 4.2.4 Isolating a UPS System for MaintenanceSee 4.2.5 Transfer of Load Between Two Systems Parallel Operations See 4.2.11 Tying the UPS Systems ContinuousUPS System See 4.2.3 Maintenance Procedures Isolating EachOne system in bypass to Continuous Tie operation Option Operating Instructions Page Company Behind the Products Technical Support/ServiceLocations