Oil D

istri

butio

n Tr

ansf

orm

ers

Max

imum

qua

lity

for

max

imum

loa

ds

2

SBG

at a

Gla

nce

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.

3

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

4

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.

5

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

6

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.

7

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

8

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.

9

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

Awardsandcertificatesreflectthehighdemandsweplaceonourselvesintermsofactingresponsibly.

Certifiedtransportingagenciesandtruckswithspecialsuperstructuresandload-securingequipment

Confirmed many times:

SBG’s quality and performance

Environment

Occupational Safety

10

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

11

Request form

Quantity:

Design: Hermetic / expansion tank*

Type of installation: Indoor / Outdoor*

Nominal power:

High voltage:

- can be changed over to:

High-voltage tappings:

Low voltage:

Impedance:

No-load losses:

Load losses:

High-voltage bushings: Porcelain / plug-in connector, type

Low-voltage bushings: DIN EN50386/

equipped with:

Protection/monitoring equipment:

Corrosion protection: Coating with paint (c3) / hot-galvanized with coating paint (c4)

Special Duties:

Converter operation

Place, date, company

* Delete as applicable

Would you like us to submit an offer? To be able to define your transformer requirements, pleaseprovide us with the following information. Please send this form by fax tofax no. +49 (0)37600 / 3414 or send an email to sgb@sgb-neumark.deYou can also use the direct line to Sales and Development: phone number +49 (0)37600 / 8300.

Request/order information on three-phase oil transformers in accordance with DIN EN50474

Partn

ers

in P

ower

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