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Products • Powertransformersfrom5to140MVA uptoUm245KV ONAN/ONAF/OFWF/OFAF 162/3Hz/50Hz/60Hz• Oilchokes• Singlephasetransformers• Resonantcircuitreactances• Couplingtransformersandreactors forripplecontrol• Shuntreactorsandcurrentlimiting reactors• Transformerswithlinedropand parallelregulation• Rectifierandfurnacetransformers

Repair• Alltypesoftransformers>5MVA• Manufactureofcompletespareparts

MaintenanceProviderofservicesforeverythingtodowithtransformers

Quality managementThecompleteoperationalprocessiscontrolledbyatriedandtestedqualitymanagementsystem.TheSGBGroupiscertifiedinaccordancewith• ISO9001• ISO14001• Federalrailwayswelding authorisation• KTA1401• OHSAS18001

MarketsTheSGBgroupmanufacturesandteststransformersfortheworldmarket.Wecomplywiththestandardsof:•DIN/VDE •UL•IEC76 •ENEL•BritishStandard •ÖVE•ANSI/IEEE •SVV•CAN/CSA •andothers•NEMA

No-load losses / Noise Uptotheminutecore-layingtechnology(steplap)andtheapplicationofhighquality,extremelylowlosssheetsteelwithlowmagnetism,guaranteesthecustomerlowno-loadlossesandnoiseemissions.

Short-circuit lossesThankstotheoptimisationofthecon-ductorcrosssections,low-loadlossescanbeachievedinrelationtotheadditionallosses.Asaresult,SGBtransformerscompletelymeetthetechnicalaswellastheeconomicalrequirementswithregardtoshortcircuitproofing.

You can count on our quality

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12,5 16 20 25 31,5 40 50 63 80 100 120 140 0

12,5 16 20 25 31,5 40 50 63 80 100 120 140

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Valuesinaccordancewithstandards

Typicalutilityspecification

ValuesachievablebySGB

Po(kW)

MVA

MVA

MVA

PK(kW)

LWA(dB)

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Good quality coresIron core design detailsTheSGBtransformerscorescontaingoodcharacteristics.Boththepainstakingselectionofthematerialsandthedependabledesignofthemouldedpiecesandtheirsolidmanufacturearedecisiveforthehighquality.

Theconcurrenceofthesefactorspermitsprogressiveoptimisationofno-loadlossesandcurrents,inadditiontonoiselevels.Inthecaseofdimensionlimitations,eventhemostextremecustomerdemandscanbeaccommodated.

• Cold-rolledgrain-orientedsheetofsteelfromwellknownmanufacturersinthebest availablequality,withasheetthicknessof0.3,0.27and0.23mm.• Computer-controlledcorecuttingequipment.• 45°roofcut.• Steplapprocesstomortisejointhecolumnsandyokes.• Processingequipmentforpreciselaminating• Uniformcorepressingthroughbindingsandcompactingsteelframes.

Corebeforeinstallation

Positioningofthecore

Core-cuttingequipment

Goodqualitycores

Always well wound Winding design detailsItisnotwithoutreasonthatSGBtrans-formersfulfilthehighestrequirementsofreliabilityandlonglife.Thewindingprocessiscarriedoutusingmachinesespeciallyconstructedforthis,whichensureshighqualityandpreciseresults.

• Thewindingprocessiscarriedoutbyqualifiedpersonnelonthelatestwindingmachines.

• Theselectionofthetypeofwindingandconductorismade,takingthedimen-sioningcurrentsand thedimensioningtensionintoaccount,togetherwiththerequiredtestlevelaswellastheexpected thermalandmechanicalstress.

• Duringtheoptimisationoftheconductorcross-sections,theinfluenceoftheconductorsizeonthe amountoftheadditionallossesisequallyconsidered,asaretherequirementsontheshort-circuit proofing.

• Thestabilisationoftheaxialwindingdimensionsisachievedthroughpre-drying,thenestablishing thedefinedwindinglengthsduringapplicationoftheintendedgrippingforceandthethorough, symmetricaldesignofthewindings.Atthesametime,possiblenecessarymeasuresof compensationmustbeincludedinthecalculationtoavoidunsymmetricalforces.

• Thedispersedarrangementofthepress-boardbarriersandoilextensionspermitamodern isolationconstructionbetweenthewindings.

• Thetransformersshowanadequatejointcompressionand/orgrippingofthewindingsat thecore,takingtheoccurrencesoftheaxialshort-circuitforcesintoaccount.

• Thecorrectnessofthebasicmethodsofcalculationanddesignprinciplesisprovedthrough repeatedshort-circuittests.Proofingiscarriedoutbothonourownaccountandatthecustomer’s request.

• Inordertooptimallyusethewindingspace,thewindingprinciplesandtheconductortypesare carefullyselectedforeachindividualcase.

• Thestabilisationoftheaxialwindingdimensionsisachievedthroughpredrying.Therequirementsof thedielectricstrengthandtheshortcircuitproofing,aretakenintoaccountequallyasmuchasthe thermalrequirements.

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Everything from on supplier

From the order centre…

...yourorderisconvertedintoaninternalorderbyexperiencedstaff.

Thus,ourshortdeliverytermsof5monthsareaccomplishedthroughbundlingthecompetencesofsales,calculation,workpreparation,purchasinganddesign.

Handinhand,allnecessarydocumentsarepreparedandquicklyhandedover...

Sales·Orderprocessingwithcustomers·Preparationofworkorders·Efficientprocessingfromtheorder totheshipment

Supplier assessmentMaterialqueries/Supplierselection,Materialscheduling,Supplierauditing,Deadlinemonitoringwithregardtosupplyterm

Deadline control·Designmonitoring·Manufacturingmonitoring·Deadlinemonitoring·Materialmonitoring

... to the production centre

Everythingfromonesupplier

Work preparationPreparationofallmanufacturingdocumentswiththesupportofthemodernPPSsystem

CalculationCreationofallcalculationdocumentsusingmoderncomputers.

DesignCADsupporteddesign

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Valuesaremeasurable

Shielding – Resulting valuesTheshieldingofthetestingroomswith82mmthickperforatedplatepanelswithregardto:

•Airconditioning(withcoolinginstallation)•Soundinsulation•HF-shielding

resultedinthefollowingvalues:

Halldesiredtemperaturevalue20°CMaximumincreaseduringheatingon+5Kduringthis,400kWoutputwhichcanbedissipated.Sound-prooflevel:42dBwalls,37dBRollerdoors,HFinterferencelevel5pc

Values are measurableMost important test facilitiesSomeofthemostimportanttestfacilitiesfollow:• Impulsevoltageequipment1600kV/60kJ• Alternatingvoltagetestequipment600kV (75kVA/150kVA)100kV(25kVA)• Frequencyconverter 60Hz/125-350Hz/125Hz• Testingtransformers• Audiofrequencyconverter 83.33/100/116.67/183.33/200/216.67Hz• 162/3-powersupplybyDeutscheBahnAG• Calibrationlaboratorytocalibrate electricalmeasuringdevices

Building detailsThetestingbuildingcomprisesthesteelconstructionhall,whichistheactualtestroom,andaconcreteconstructionbuildingwiththenecessaryroomstoserveastestingshopsandtoaccommodatethetestingmachines.Length

WidthHeightWalled-inspace

Steelconstructionhall 42m20m14m

13,944m3

Concreteconstructionbuilding

42m10m9m

4,180m3

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Transformers for all the world

31,5MVA115/21kVONAN

120MVA132/33kVONAF

15/20/25MVA138/12,47kVOA/FA/FA

30MVA110/11,5kVONAN

10MVA33/11kVONAN

28MVA24/1,1kVOFWF

35MVA63/15,75kVONAF

31,5/40MVA120/22kVONAF

40MVA150/10,5kVONAN

31,5/40MVA120/22kVONAF

TheSGBcompleteservice

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The SGB complete serviceOur service encompasses the following individual measures:

• On-siteassembly• Commissioning• Roundtheclockaccessibility• Monitoring• Overhaulingandallyearservicingofyourtransformers

Contact us!

ppm Gas in oil

°C Transformer °C Circuit breaker°C Environment

°C Transformer

ED - Drive motor

HV-current

OS Voltage from control room

(if necessary)Transformer monitoring

ppm H2O in oil

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The SGB complete service

°C Transformer

HV-current

If you do not find a checklist for your query here, please contact us immediately.

The SGB-Employees are standing by ready to offer you competent support and advice.

Dial the number next to your chosen language.

German: +49 (0) 9 41/78 41 -354 -411 -415

English: -382 -248

French: -433 -6329

Spanish: -510

Partn

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NT-03-GB-2012

STARKSTROM-GERÄTEBAU GMBHOhmstraße10•D-93055RegensburgPhone: +49/941/7841-0Fax: +49/941/7841-439E-Mail: sgb@sgb-trafo.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