Circutor computer SMART III-Fast Series Instrukcja Użytkownika Pobierz pdf (Strona 10)

3�2�-INSTALLATION

TheComputer SMART III FASTregulatorisconnectedtounitsthatcontainca-

pacitors,whichremainchargedafterthevoltagesourceisdisconnected�Wait at

least 5 minutes aftertheunitisdisconnectedbeforehandlingitsinternalcom-

ponentsinordertoavoidtheriskofelectricshock�

Any manipulation or use of the unit other than that specied by the manu-

facturer may compromise user safety�

Makesurethattheunitsarecorrectlyearthedbeforetheyareconnected�Afaultyearthconnec-

tioncouldleadtofaultyoperationandleadtoariskofelectricalshockfortheuserorperson

handlingtheunit�

Resonancecanoccurwhentheunitisconnectedwithnoload�Inthiscase,thevoltagehar-

monicscanbeamplied,causingdamagetothecompensationunitandotherunitsconnected

tothemains�

ThesafeuseoftheCOMPUTER SMART III FASTrequiresthepersonsinstallingorhandling

ittofollowthegeneralsafetymeasuresofLVelectricalinstallations,aswellasthewarnings

indicatedinthisinstructionmanual�

Theunitwillbeinstalledonapanel(138+1

x138+1mmpaneldrillhole,incompliancewithDIN

43700)�Allconnectionsareinsidetheelectricpanel�

Terminals,openingroofsorremovingelementscanexposepartsthatarehaz-

ardoustothetouchwhiletheunitispowered�Donotusetheunituntilitisfully

installed�

Theunitmustbeconnectedtoapowercircuitthatisprotectedwithgl(IEC269)orMtypefuses

witharatingof0�5to2A�Itmustbettedwithacircuitbreakerorequivalentdevicefordiscon-

nectingtheunitfromthepowersupplymains�

Thepowerandvoltagemeasurementcircuitsaswellastherelaycontactcircuitsmustbecon-

nectedwithcablesthathaveaminimumcross-sectionof1�5mm

�

Oneorthreeexternalcurrenttransformers(CT)needtobeinstalledinordertomeasurecur-

rent�Usually,thetransformationratiooftheseCTsisIn/5A,whereInisatleast1�5timesthe

totalmaximumloadcurrent�

Thesecondarycablesofthecurrent transformers (CT)musthaveaminimumcross-section

of2�5mm

�FordistancesbetweentheCTsandtheunitofmorethan25m,thiscross-section

shouldbeincreasedby1mm

forevery10m�

Thecurrenttransformers(CT)mustbeinstalledatapointinthedistributionpanelwhichcarries

allthecurrentoftheloadstobecompensatedaswellasthecurrentofthecapacitorsthem-

selves(Figure 1)�

Computer SMART III FAST

Instruction Manual

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Circutor computer SMART III-Fast Series Instrukcja Użytkownika Strona 10