Master Switch

Highlights

STS

90

InstallingÊaÊMASTERÊSWITCHÊstaticÊtransferÊswitchÊprovidesÊadditionalÊresilienceÊandÊprotectionÊfromÊtheÊdisruptionÊthatÊcanÊbeÊcausedÊbyÊtheÊfailureÊofÊaÊsingleÊpowerÊsourceTheÊresultÊisÊtheÊabsoluteÊprotectionÊofÊindustrialÊutilitiesÊandÊcriticalÊinformationÊtechnologyÊagainstÊpowerÊsupplyÊandÊloadÊfaults.

Operating principle MASTERÊSWITCHÊguaranteesÊaÊsourceÊofÊredundantÊpower,ÊallowingÊtheÊloadÊtoÊbeÊswitchedÊbetweenÊtoÊalternativeÊandÊindependentÊpowerÊsources.SwitchingÊcanÊbeÊautomaticÊ(whenÊaÊsupplyÊsourceÊfallsÊoutsideÊofÊacceptableÊtolerances)ÊorÊmanuallyÊdoneÊbyÊanÊoperatorÊfromÊtheÊfrontÊpanelÊorÊremotely.

SERVERS

¥ÊHighÊreliability

¥ÊÒHotÊReplacementÓÊÊÊÊfunction

¥Ê3-ÊorÊ4-poleÊversion

¥ÊAdvancedÊÊÊÊcommunication

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UPS

685 530

1500

685 580

1770

950 730

1900

MTS 100MTS 150 MTS 600MTS 200 - MTS 250

MTS 300 - MTS 400

L1

L2

L3 L5

L6L8

L7

L4

91

Protection against power supply faults InÊtheÊeventÊthatÊoneÊofÊtheÊtwoÊpowerÊsourcesÊdoesÊnotÊfallÊwithinÊacceptedÊtoleranceÊvalues,ÊMASTERÊSWITCHÊwillÊtransferÊtheÊotherÊloadsÊoverÊtoÊtheÊsecondÊpowerÊÊsourceÊ(thisÊhappensÊinstantlyÊifÊtheÊtwoÊsourcesÊareÊinÊphase).

Protection against environmental disturbancesLoadÊoverloadsÊandÊfaultsInÊtheÊeventÊofÊanÊoverload,ÊtheÊuserÊcanÊdecideÊtheÊlevelÊofÊinterventionÊofÊtheÊinternalÊprotectionsÊinÊorderÊtoÊblockÊtheÊsupplyÊofÊenergy.ÊInÊtheÊextremeÊcaseÊaÊdownstreamÊshortÊcircuit,ÊMASTERÊSWITCHÊdisconnectsÊtheÊload,ÊinÊorderÊtoÊpreventÊjeopardisingÊtheÊoperationÊofÊotherÊloadsÊ(e.g..ÊinÊcaseÊofÊpoorÊprotectionÊselectivity).Ê

Total microprocessor controlMicroprocessorÊcontrolÊlogicÊensures:¥ÊFastÊandÊsafeÊswitchingÊbetweenÊpowerÊsources¥ÊMonitoringÊofÊallÊparametersÊviaÊLCDÊdisplay¥ÊConstantÊcontrolÊofÊtheÊSCRs¥ÊAdvancedÊremoteÊdiagnosticsÊ(RS232ÊandÊTCP/IP)

Redundant DesignPowerÊisÊsuppliedÊtoÊtheÊinternalÊlogicÊbyÊtwo,ÊseparateÊsupplyÊcircuitsÊthatÊareÊfullyÊindependentÊandÊthatÊcanÊbeÊreplacedÊinÊÒhotÊreplacementÓÊmodeÊwithoutÊcausingÊpowerÊsupplyÊinterruptionsÊtoÊtheÊload.ÊInÊtheÊeventÊthatÊtheÊpowerÊsuppliedÊbyÊbothÊsourcesÊfails,ÊfullÊsystemÊoperationÊisÊguaranteedÊbyÊtheÊPowerÊSupplyÊBackupÊfunctionÊthatÊprovidesÊauxiliaryÊpowerÊsupplyÊtoÊtheÊcircuitÊthroughÊanÊexternal,ÊindependentÊpowerÊsource.ÊMASTERÊSWITCHÊisÊequippedÊwithÊdualÊredundantÊventilationÊdeÞnedÊas:ÊÒfanÊ

redundancyÊplusÓ.ÊThanksÊtoÊthisÊfeature,ÊandÊinÊtheÊunlikelyÊeventÊthatÊtwoÊfansÊfailÊatÊtheÊsameÊtime,ÊthoseÊremainingÊwouldÊstillÊbeÊableÊtoÊdissipateÊtheÊheatÊgeneratedÊatÊratedÊloadÊandÊwithÊanÊambientÊtemperatureÊupÊtoÊ40¡ÊC.ÊTheÊfansÊcanÊbeÊreplacedÊinÊÒhotÊreplacementÓÊmode,ÊensuringÊcontinuityÊduringÊtheÊintervention.

High protection InÊtheÊeventÊofÊanÊoutputÊshortÊcircuit,ÊMASTERÊSWITCHÊwillÊblockÊtheÊtransferÊbetweenÊtheÊtwoÊpowerÊsourcesÊeliminatingÊtheÊriskÊofÊpropagatingÊtheÊshortÊcircuitÊandÊitsÊeffectsÊonÊtheÊotherÊloads.AÊbackfeedÊcontrolÊcircuitÊensuresÊtheÊautomaticÊinterventionÊofÊprotectionÊdevicesÊwhenÊaÊreturnÊofÊenergyÊtoÊoneÊofÊtheÊtwoÊMASTERÊSWITCHÊinputsÊisÊdetected.

AccessibilityTheÊlayoutÊofÊtheÊmovingÊcomponentsÊandÊpartsÊisÊdesignedÊtoÊensureÊeasyÊfrontalÊaccess:¥ÊpowerÊcableÊconnectionsÊthatÊareÊeasilyÊaccessedÊwithÊentryÊfromÊbelow¥ÊboardsÊhousedÊinÊaÊdedicatedÊareaÊforÊrapidÊdiagnosisÊ/Êreplacement¥ÊallÊpartsÊsubjectÊtoÊcontrols,ÊmaintenanceÊand/orÊreplacement.

LED FUNCTION

L1 S1 Priority Source

L2 S2 Priority Source

L3 S1 Present

L4 S2 Present

L5 Static transfer switch SS1 closed

L6 Static transfer switch SS2 closed

L7 Alarm indicator

L8 Output selector ON/OFF

5 function keys and LCD operation

S4-1

InputMCCB 2

MaintenanceSwitch 2

MaintenanceSwitch 1

OutputSwitch 1

3P + NOutput

3P + NSource 1

Input

3P + NSource 2Input

InputMCCB 1

S4-2 SS2

S2

SS1

S1

S3

Advanced communicationMasterÊSwitchÊprovidesÊinformation,Êmeasurements,Êstatuses,ÊandÊalarmsÊviaÊtheÊLCDÊdisplay.ÊTheÊSTSÊisÊcompatibleÊwithÊPowershield3ÊsupervisionÊandÊshutdownÊsoftwareÊforÊWindowsÊoperatingÊsystemsÊ7,Ê2008,ÊVista,Ê2003,ÊXP,ÊLinux,ÊMacÊOSÊX,ÊandÊSunÊSolaris.

dimensions (mm)

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[PS] [AS]

USERÊ1

UPS UPS

[PS]

[AS]

[AS]

[PS]

UPS UPS

USERÊ1

USERÊ2

[PS]

[PS]

[AS]

[AS]

UPS

USERÊ1

USERÊ2

Independentseparate lines

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92

MASTERÊSWITCHÊinREDUNDANT modeTheÊsecondaryÊsourceÊ[AS],ÊalthoughÊhighlyÊreliable,ÊonlyÊpowersÊtheÊloadÊpowerÊinÊtheÊeventÊofÊaÊfailureÊwithÊtheÊpriorityÊsourceÊ[PS],ÊensuringÊmaximumÊredundancyÊandÊpowerÊqualityÊtoÊtheÊloads.

MASTERÊSWITCHÊinCROSS FEEDING ModeTheÊtwoÊsourcesÊpowerÊcriticalÊloadsÊusingÊMASTERÊSWITCHESÊconÞguredÊtoÊselectedÊoneÊofÊtheÊtwoÊpowerÊsourcesÊasÊtheÊpriorityÊsourceÊ(PS).ÊInÊcaseÊofÊaÊfailureÊinÊoneÊofÊtwoÊsources,ÊtheÊotherÊwillÊbeÊableÊtoÊsupplyÊpowerÊtoÊallÊtheÊloadsÊconnectedÊtoÊtheÊsystem).

MASTERÊSWITCHÊinBACK-UP modeMASTERÊSWITCHESÊpowerÊutilitiesÊviaÊtheÊpriorityÊenergyÊsourceÊ[PS];ÊtheÊsecondaryÊenergyÊsourceÊ[AS]ÊisÊmadeÊupÊofÊindependent,ÊseparateÊpowerÊsourcesÊandÊtoÊmakeÊupÊforÊanyÊfaultsÊinÊtheÊpriorityÊpowerÊsource.Ê[PS]

DYNAMIC DUAL BUS CONFIGURATIONTheÊRielloÊUPSÊsolutionÊguaranteesÊmaximumÊreliabilityÊandÊensuresÊcontinuityÊofÊpowerÊsupplyÊinÊallÊoperatingÊconditionsÊthanksÊtoÊtheÊUGSÊoptionÊthatÊkeepsÊtheÊtwoÊsystems,ÊAÊandÊB,ÊperfectlyÊsynchronised.

TheÊßexibilityÊofÊtheÊUGSÊsystemÊensuresÊsynchronismÊbetweenÊtheÊsourcesÊevenÊwhenÊoneÊofÊtheÊtwoÊsystemsÊisÊnotÊaÊRielloÊUPSÊmodelÊbutÊratherÊisÊmadeÊbyÊanotherÊmanufacturerÊorÊwhenÊtheÊinputÊsourcesÊareÊnotÊUPSs.

[AS] = Secondary[PS] = Priority

[AS] = Secondary[PS] = Priority

[AS] = Secondary[PS] = Priority

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UPS

93

MODELS MTS 100 MTS 150 MTS 200 MTS 250 MTS 300 MTS 400 MTS 600

RATED CURRENT (A) 100 150 200 250 300 400 600

INPUT

Nominal voltage - sources S1/S2

380 - 400 - 415 Vac three-phase with neutral

Input voltage tolerance 180÷264 Vac (selectable)

Switched input phases 3+N (4-pole) - 3 (3-pole)

Nominal frequency 50 or 60 Hz

Input frequency tolerance range

+/-10% (selectable)

Distribution compatibility IT, TT, TNS, TNC

OPERATING FEATURES

Transfer type “Break Before Make” (no overlapping sources)

Available transfer methods Automatic / Manual / Remote

Transfer time for source failure

< 4 msec (S1/S2 synchronised)10 msec (S1/S2 NON synchronised)

ENVIRONMENTAL

Efficiency at full load (%) > 99%

Noise level at 1 m from front (dBA) (from 0 to full load) - (dBA)

55 55 55 55 55 55 57

Storage temperature -10°C up to +50°C

Ambient temperature O°C - 40°C

Relative humidity 95% non-condensing

Max installation height 1000 m at rated power (-1% power for every 100 m above 1000 m) - Max 4000 m

Reference Standards EN 62310-1 (safety) EN 62310-2 (electro-magnetic compatibility)

INFO FOR INSTALLATION

Weight (kg) 155 175 205 210 220 240 375

Dimensions (hwd) (mm) 1500 x 685 x 530 1770 x 685 x 580 1900 x 950 x 730

Colour RAL 7016

Protection level IP 20

• All specifications subject to change without notice.• Custom-made specifications are acceptable.• Manufactured by factory with ISO 9001, ISO 14001, CE, STANDARD

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