Siemens SMART 7KT Bedienungsanleitung

SMART 7KT0310 Manual

MANUAL

SMART KT

Multifunction meter

7KT0310

SMART 7KT power monitoring devices

SMART 7KT0310 Manual

1. Introduction 3

2. Safety precautions 4

3. Technicalspecication 5

4. Installation 7

5. Connection 9

6. Conguration 10

7. Communication 14

8. Maintenance 19

SMART 7KT

Multifunction meter

7KT0310

Manual

Index

01/2022

SME7KT03100122

SMART 7KT0310 Manual

Introduction 

1.1 Purpose of this document

This present manual describes the SMART 7KT multifunction meter.

It is intended for the use of:

• Planners

• Plantoperators

• Commissioningengineers

• Serviceandmaintenancepersonnel

1.2 Required basic knowledge

Ageneralknowledgeoftheeldofelectricalengineeringisrequiredtounderstandthismanual.

Knowledgeoftherelevantsafetyregulationsandstandardsisrequiredforinstallingandconnectingthedevice.

1.3 Components of the product

The carton for the products contain

1 SMART 7KT meter

1setofclamps(4clamps)formountingthemeteronthepaneldoor

1Gasket

1Operatinginstruction

4nos.TerminalClamps RubberGasketx1

SMART 7KT0310 Manual

Safety

precautions 

Pleasereadandunderstandtheseinstructionsbeforeinstalling,operating,ormaintainingtheequipment.

DANGER

Hazardousvoltage.Willcausedeathorseriousinjury.Turnoffandlockoutallpower

supplytothisdevicebeforeworkingonthisdevice.

Replaceallcoversbeforepowersupplyingthisdeviceisturnedon.

Allsafetyrelatedcodications,symbolsandinstructionsthatappearinthisoperatingmanualorontheequipment

mustbestrictlyfollowedtoensurethesafetyoftheoperatingpersonnelaswellastheinstrument.Iftheequipmentis

notusedinamannerspeciedbythemanufactureritmightimpairtheprotectionprovidedbytheequipment.

Donotusetheequipmentifthereisanymechanicaldamage.

Ensurethattheequipmentissuppliedwithcorrectvoltage.

CAUTION:

1. Read complete instructions prior to installation and operation of the unit.

2. Riskofelectricshock.

3. Theequipmentinitsinstalledstatemustnotcomeincloseproximitytoanyheatingsources,oils,steam,

causticvaporsorotherunwantedprocessbyproducts.

SMART 7KT0310 Manual

Technical

speciﬁcation 

Display

Typeandspecics • LargebacklitLiquidCrystaldisplay

• 4Lineswith4digitseachtoshowmeasuredvalues

• 5thLinewith8digitstoshowenergyvalues

• Graphforcurrentloadingindication

Sizeofdisplay(mmxmm) 60.3mmx60.3mm

LCDIndications

 Integrationofenergy

PRG Unitisincongurationmenu

 Communicationinprogress

MAX DMD MaximumandMinimumDemandPower

Display update time 1 sec. for all parameters

Displayscrolling AutomaticorManual(Programmable)

Passwordprotected Yes

Wiring input 3Ø-4wire,3Ø-3wire,1Ø-2wire

Measuring inputs

Ratedinputvoltage 11to300VAC(L-N);19to519VAC(L-L);InstallationCategoryIII(600V)

Frequencyrange 45-65Hz

Rated input current Nominal1A/5AAC(Min-11mA,Max-6Afor5A)

Auxiliary supply 95Vto240VAC,±10%,50/60Hz(±5%)

Memory (behaviour in the event of power

failure)

Retainsallenergyvalues,Onhourscountervalueandcongurationsettingsincaseof

powerfailure

CT/PT Settings

CTType MeasurementC.T,FS10

CTPrimary 1A/5Ato10,000A(ProgrammableforanyValue)

• 1Ato10,000AwhenCTsecondaryis1

• 5Ato10,000AwhenCTsecondaryis5

CTSecondary 1Aor5A(Programmable)

Burden 0.5VA@5Aperphase

PTPrimary 100Vto500kV(Programmableforanyvalue)

PTSecondary 100Vto500VAC(L-L)(Programmableforanyvalue)

Power consumption Lessthan8VA

Environmental conditions • Temperature(Operating):-10°Cto55°C

• Temperature(Storage):-20°Cto75°C

• Humidity:Upto85%non-condensing

• Altitude:ofupto2000meters

• Indooruse

• PollutiondegreeII

Mounting Panel-doormounting

Protection Class II

Degree of protection according to IEC 60529 Front:IP65(whenmountedonthepaneldoor)

Rear:IP20

Overvoltage Category III

Dimensions and weight LxBxD:96x96x55mm

Weight:360gms

Digital Input

Number 1

Inputvoltage Maximuminputvoltage:28VDC

Switchingthresholdforsignal"1“>__VDC

Input current Forsignal“1”:typ__mA

SMART 7KT0310 Manual

Measured variables

Measured variable On display On communication

VoltageVL-N,VL-L ● ●

Current ● ●

Neutralcurrent ● ●

Frequency ● ●

Powerfactor ● ●

Activepower ● ●

Reactivepower ● ●

Apparentpower ● ●

Activeenergy(Import,Export,Total) ● ●

Reactiveenergy(Import,Export,Total) ● ●

Apparentenergy ● ●

Maxdemand(current)oversetdemandperiod ● ●

Maxdemand(active,reactiveandapparentpower)oversetdemand

period

● ●

Phaseangleof3phases ●–

THD%(Current) ● ●

THD%(Voltage) ● ●

Individualharmonics(Current) –●

Individualharmonics(Voltage) –●

–:Notthere

●:Available

Measuring accuracy

Measured variable Error limits

VoltageVL-N 0.5%ofFullscale(300VAC)

VoltageVL-L Fullscale0.5%

Current PhaseCurrent:0.5%offullscale

Neutralcurrent:1%offullscale

Frequency 0.1%

ForL-NVoltage>20V,

ForL-LVoltage>35V

Powerfactor 0.01Digit

Activepower 1%

Reactivepower 1%

Apparentpower 1%

Activeenergy Class1(asperIEC62053-21)

Reactiveenergy Class2(asperIEC62053-23)

Apparentenergy 1%

Phaseangleof3phases 1%

THD(Current) 1%

THD(Voltage) 1%

Harmonics(Current) 1%

Harmonics(Voltage) 1%

Whenmeasuringonexternalcurrenttransformersorvoltage

transformers,theaccuracyofthemeasurementdependsonthe

qualityofthetransformer.

IEC Standards

Description Standard

Energyaccuracy IEC62053-21|Activeenergy

EMCrequirements IEC61326-1:2012

Degreeofprotectiontest(IP) IEC60529

Safetyrequirements IEC61010-1:2010and

IEC61010-2-030:2010

Vibrationandmechanicalshock IEC62052-11

Certications

SMART7KTmultifunctionmeterconformstoIEC

standards,IPCelectronicsassemblystandardand RoHS

SMART 7KT0310 Manual

Assembly 

Installation

For installing the meter

Preparethepanelcutoutwithproperdimensionsasshownbelow.

FRONT PANEL DESCRIPTION OUTLINE

Dimensions (in mm)

PANEL CUTOUT

Dimensions (in mm)

90.5

596

91.5

1. Insert unit into the panel 2. Positiontheclamps(asshowninthe

gure)andpushthesameintotheslots

intheirrespectivelocations.

3. Push/Slideall4clampstowardsthepanel

evenlytillthelowestpossibletoothof

theclampisengaged.Ensure the meter

is properly tightened and it does not

move.

PANEL

GASKET

UNIT

Base clamp

position

Base clamp

position

SLIDING

CLAMP

SLIDING

CLAMP

Note:Terminalscrewtighteningtorque:0.7N-mto0.8N-m(6In-Lbto7In-Lb)

Thedistancetobemaintainedbetweentwometerswhile

mountingonapaneldoorshouldbeatleast100mm.

100 mm

100 mm 100 mm

100 mm

Mounting distance

SMART 7KT0310 Manual

Installation Guidelines

1. Thisequipment,beingbuilt-in-type,normallybecomesapartofmaincontrolpanelandinsuchcasetheterminals

donotremainaccessibletotheenduserafterinstallationandinternalwiring.

2. Conductorsmustnotcomeincontactwiththeinternalcircuitryoftheequipmentorelseitmayleadtoasafety

hazardthatmayinturnendangerlifeorcauseelectricalshocktotheoperator.

3. Circuitbreakerormainsswitchmustbeinstalledbetweenpowersourceandsupplyterminalstofacilitate

power‘ON’or‘OFF’function.Howeverthisswitchorbreakermustbeinstalledinaconvenientpositionnormally

accessible to the operator.

4. Beforedisconnectingthesecondaryoftheexternalcurrenttransformerfromtheequipment,makesurethatthe

currenttransformerisshortcircuitedtoavoidriskofelectricalshockandinjury.

5. Theequipmentshallnotbeinstalledinenvironmentalconditionsotherthanthosementionedinthismanual.

6. Theequipmentdoesnothaveabuilt-in-typefuse.Installationofexternalfuseofrating275VAC/0.5Ampfor

electricalcircuitryishighlyrecommended.

7. Removethescratch-guardfromthemeterdisplayduringcommissioningofthepanel.

Wiring Guidelines

1. Topreventtheriskofelectricshock,powersupplytotheequipmentmustbekeptOFFwhiledoingthewiring

arrangement.

2. Wiringshallbedonestrictlyaccordingtotheterminallayout.Conrmthatallconnectionsarecorrect.

3. Useluggedterminals.

4. Toreduceelectromagneticinterferenceuseofwireswithadequateratingsandtwistsofthesameinequalsize

shallbemadewithshortestconnections.

5. LayoutofconnectingcablesshallbeawayfromanyinternalEMIsource.

6. Cableusedforconnectiontopowersource,musthaveacross-sectionof1mm2to2.5mm2.Thesewiresshallhave

currentcarryingcapacityof6A.

7. Coppercableshouldbeused(StrandedorSinglecorecable).

For demounting the meter

Pullthearmoftheslidingclampsin

outwarddirection(oppositetometer)and

dragtheslidingclampsawayfromthe

panel.

Dis-assemblethesnapttedbaseclamps

fromthemeterusingascrew-driver

Pushthemeterfrombacksideoutofthe

panelwindowandremovethegasketfrom

the meter

Sliding Clamps

X 4nos.

Base Clamps

X 4nos

Mete

Gasket

Panel

SMART 7KT0310 Manual

Connection 

S2S1S2S1S2S1 V1

V2 V3

RS485

CONNECTIONS DIAGRAM

3 Phase 4-Wire (commonly used)

3Ø-4Wire,3CT’S 3Ø-4Wire,3CT’Sand3PT’S

S2S1 S2S1 S2S1 NV2V3

LOADLINE

I1I2I3

DI RS485

SMART7KT

Voltageupto 500V without PT

LINE

DI RS485

LOAD

S2S1 S2S1 S2S1 NV1V2V3

I1I2I3

SMART7KT

Voltage 100V-500kV withPT

Circuit Diagram

SMART 7KT0310 Manual

3 Phase 3-Wire

3Ø-3Wire,2CTsand2PTs

1 Phase 2-Wire

1Ø-2Wire,1CT

S2S1 S2S1 S2S1 V1NV2V3

LOADLINE

I1I2I3

DI RS485

SMART7KT

S2S1 S2S1 S2S1 V1NV2V3

LOADLINE

I1I2I3

DI RS485

SMART7KT

Circuit Diagram (Continued)

#AllFuseType:0.5A,ClassgG

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