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SBG at a GlanceProducts• Oiltransformers•Arcsuppressioncoils•Earthingtransformers•Neutralearthingtransformers

Quality managementTheSGB-SMITGroupiscertifiedinaccordancewith:•DINISO9001•DINISO14001

WepossessweldingcertificationrequiredbytheGermanFederalRailways.Ourownqualitycheckpointsguaranteeamaximumqualitylevel.AlloperationalproceduresarecontrolledviaanERPsystem.

Core,winding,assemblyandhousing:thesefourcomponentsandproductionstepsarewhatcharacterizesouroildistributiontransformers.Theyareour“T.O.P.4”.

MarketsSBGmanufacturestransformersforapplicationsworldwide.SalesandServiceCentersonallcontinentsensureoptimumprocesses.

Ourproductsmeettherequirementsinaccordancewiththeapplicablenationalstandards.

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Power where power is neededOur core competence: the ideal basisfor powerful advancements.

WemanufactureoiltransformersfordistributionnetworksinaccordancewithDINEN50464-1.Theyformthebasisforproductsthatcanbeintegratedperfectlyinspecificapplications,e.g.:

• Three-phaseoiltransformersfordistribution networksofenergysupplycompanies

• Three-phaseoiltransformersinlow-lossdesign fordecentralizedenergygeneration

• Three-phasemulti-windingoiltransformersfor specialrequirements

• Three-phaseoiltransformersforwindpowerplants

• Specialthree-phaseoiltransformersforindustrialplants

•Single-phaseoiltransformersforrailwayapplications

•Arcsuppressioncoils

•Neutralearthingtransformers

•Earthingtransformers

•Oiltransformerswithinsulatingfluidsfor specialrequirements,e.g.fireprotectionor environmentalissues

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QualityComponentAssemblyI

Quality is no coincidence: the core

Theheartofouroildistributiontransformers:thankstostate-of-theartproductionproceduresandhighprecision,itbeatswithparticularreliabilityandpower.Thisiswhatdistinguishescoresmanufacturedin-houseatSBG.

•cold-rolledgrain-orientedmetalsheets•step-lapdesign•max.fillingfactor

Thesemeasuresreduceno-loadlossesandno-loadcurrentsaswellasnoiseemission.

T.O.P. 1

AtSBG,theactualparametersofthetexturetapesusedaremeasuredandrecordedpriortocoreslitting.

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Precise and resistant: the winding

Maximumresistanceto•short-circuitload•overvoltagepeaks

The low-voltage coil-winding

•semi-automatedwindingmachines•currentdisplacementinaxialdirectionadjustsautomatically•reducedthrustforces•spark-freeandsplatter-freecold-pressureweldingofoutgoinglines• high-tensilecoilsthankstoconcentriccoilshapeandthermalbonding oftheprepregtotheconductormaterial

The high-voltage winding

•fullyorsemi-automatedwindingmachines•lacquer-orpaper-insulatedwindingwire•constantwindingtension• layerinsulationmadeofhigh-qualitycablepaper

QualityComponentAssemblyII

T.O.P. 2

LVinsulationmeetinghighestsafetystandardsdueto:•two-layerprepregas LV insulation material•individuallytested pressure-weldedjoints

Productionofhigh-tensilecoils

Fully-automated

windingmachine

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QualityComponentAssemblyIII

Reliable and solid:assembly & dryingAssembly of the active partAllcomponentsareassembledandmountedinashort-circuitproofmannerusingpressedcomponents.Theresult:additionalreservesandincreasedreliability.

Vacuum dryingDryingandoilfillingundervacuumasabasisfor:•maximumimpregnationofinsulatingmaterials•ensuredcompliancewithPDspecificationsas aprerequisiteforanextremelylongservicelife

T.O.P. 3

AtSBG,allactivepartsaresubjectedtoanelectricalpre-testpriortoinstallationinthehousing.

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Durable and robust:housing & corrosion protectionHousing and cover•Corrugatedtankmanufacturedin-house•State-of-the-artcorrugationplantprocessesusing qualitysheetsteel•Afterbeingweldedviatheweldingrobot,thetankis testedforanairtightseal

Corrosion protection•Environmentallyfriendly,hydro-basedcoating systemforvariouscorrosionprotectionrequirements•Coatingwithpaintviaimmersionprocess (standardRAL7033)•Inaddition,thetankishot-galvanizedforenhanced corrosionprotection

QualityComponentAssemblyIV

T.O.P. 4

AtSBG,allhousingsmanufacturedin-housearesubjectedtoafourfoldleakagetestinaccordancewithfactory-specificstandards.Thisensuresoil-tightnessoverthetransformer’sentireservicelife!

Manufactureofthecorrugatedwall

Corrosionprotectioninspecialcolouruponcustomer’srequest

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Test

sTests“Transformers should be seenand not heard”

Reducingtransformers’noiseemissionsisbecomingincreasinglyimportant.Thisiswhy,inadditiontothestandarddesign(DINEN50464),SGBtransformersarealsoavailablewithreducedlossandnoiselevels.

Alongsidetheselectionoftheappropriateinductionandcorematerial,themethodofdovetailinglegsandyokesinstep-lapdesignhasapositiveimpactonthetransformers‘noiseemissionsandlosses.Noisemeasurementsareperformedasspecialtestsatregularintervals.

Routine tests in accordance with DIN VDE 0532•Testwithappliedvoltage(windingtest)•Testwithinducedvoltage(turntest)•Measurementofwindingresistances•Measurementoftransformerratioanddeterminationofvectorgroup;•Measurementofshort-circuitimpedanceandloadlosses•Measurementofno-loadcurrentsandno-loadlosse

Type tests and special tests in accordance with DIN VDE 0532•Temperaturerisetest• Impulseshort-circuittest• Noisemeasurement• Partial-dischargemeasurement

Fault withstand capabilityProofisprovidedviatypetestsperformedbyrenownedtestlaboratories.

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Occupational Health & Safety and certificationOnly transformers energizeAfeelingofreassurance:SBGnotonlycomplieswiththestandardsregardingmanufacturingqualityandoccupationalsafety,butalsofacestoday‘schallengeswhenitcomestoenvironmentalissues.

Awardsandcertificatesreflectthehighdemandsweplaceonourselvesintermsofactingresponsibly.

Certifiedtransportingagenciesandtruckswithspecialsuperstructuresandload-securingequipment

Confirmed many times:

SBG’s quality and performance

Environment

Occupational Safety

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Accessories

Accessories

Enhancedprotection,facilitiesformonitoringandextendedsupervision:ourtransformerscanbeequippedwithaccessoriesandspecialsolutionsforevenbetterintegrationinyourapplicationconditions.

Protection and monitoring equipment for:• temperature•oillevel•pressure•gasformation

Shock hazard protection on HV & LV•HV · innercone-typebushings · outercone-typebushings•LV · terminalswithcovers · cablehoods

Special solutions for especially challenging applications•flat-barterminalsystem•electromagneticcompatibility(EMC)•forconverteroperation•forvibration-resistantdesigns•regardingclimaticconditionsand installationaltitudes

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VT-03-GB-2012

SÄCHSISCH-BAYERISCHESTARKSTROM-GERÄTEBAU GMBHOhmstraße1•D-08496NeumarkPhone: +49/37600/83-0Fax: +49/37600/3414E-Mail: sgb@sgb-neumark.dewww.sgb-trafo.de

MemberoftheSGB-SMIT Group:

STARKSTROM-GERÄTEBAU GMBHRegensburg|Germany|Phone:+49/941/7841-0

SÄCHSISCH-BAYERISCHE STARKSTROM-GERÄTEBAU GMBHNeumark|Germany|Phone:+49/37600/83-0

SMIT TRANSFORMATOREN B.V.Nijmegen|Netherlands|Phone:+31/24/3568-911

SMIT TRANSFORMATOR SERVICENijmegen|Netherlands|Phone:+31/24/3568-626

SMIT TRANSFORMER SALES INC.SummervilleSC|USA|Phone:+1/843/871-3434

SGB-USA INC.Golden,CO|USA|Phone:+1/720/897-7090

AM SGB SDN. BHD.Nilai|Malaysia|Phone:+60/6/7994014

Subjecttochangewithoutnotice.

www.sgb-smit.com