ABB Transformers dimensions and other technical informations

RESIBLOC®

Dry Type Distribution Transformers250 kVA up to 40,000 kVA

3ABB

Mission

ABB is a global leader in power and automati-on technologies that enable utility and industrycustomers to improve performance whilelowering environmental impact.

Introduction to ABB

ABB is the worlds leading supplier of DistributionTransformers. We offer:

All technologies (Dry/Liquid)All standards (IEC, ANSI, etc)Applications up to 72.5 kV

Facts and figures (approx)

Production facilities around the world: 30Countries with Sales and Services centers: 140Number of units produced yearly: 400,000

Working with us, you have access to a world-wide network of factories and facilities servingyou locally with a full range of products andsolutions. Our warranty provides one ABB qua-lity and service. Working together gives you ac-cess to production facilities using the most upto date technologies, providing the highest qua-lity for standard and specialty products as wellas solutions.

Quality statement

Our production facilities are ISO 9001/14001certified. Our aim is to deliver your distributiontransformers fast, on time and conform to yourspecifications.

4 ABB

The Challenge:Environmental Safety & Security

Environmental protection demands are todayconstantly rising. Ever more frequently, dry typetransformers user specifications are focused oncreating minimum environmental contamina-tion and providing the very lowest flammabili-ty risks. For this reason, our transformers musttoday constantly meet more stringent parameterswith respect to electrical system demands, aswell as more extreme operating conditions.Applications today include: high-rise office andpublic buildings, nuclear power plants, offshorepetrochemical platforms, and high outputindustrial process plants.

Development of many new technologies hasenabled our transformer designers to applymodern materials with the very latest of pro-cesses, increasing the transformers durabilitywhile ensuring unprecedented product reliability.

If any of the following demands form part ofyour transformer application, then ABB has thenecessary solution:

No environmental or human contamination risksNon-explosive and extreme fire resistance Heavy loading cycles (from cold starts tofull loading)High short circuit withstandExposure to extreme conditions (arctic, tropic, chemicals, moistures etc)Harmonic overloading, over-voltage peaksor variable load factorsMinimum maintenance

The solution: RESIBLOC® - the cast resin transformer

For over 30 years, we have produced and sup-plied cast resin transformers all over the world.RESIBLOC® transformers answer the need fora safe, reliable transformer designed to fulfil themost exacting specification requirements, whilstproviding a non-flammable, environmentallysafe product.

The glass fibre reinforced RESIBLOC® transfor-mer offers an extremely robust and proven de-sign for medium voltage transformer require-ments, conforming to IEC 60076-11 standards.

RESIBLOC® - the clean technology

Glass fibre reinforcementeliminates all risk of cracksand provides the highestmechanical strength

Thermal shock proofeven at the highest andlowest temperatures

Smooth surfaces restrictdust accumulation

Glass fibre and epoxyresin encapsulation pre-vents ingress of moisture andprotects against aggressiveenvironments

High impulse withstandthrough layer winding,giving a linear voltagedistribution

5ABB

Main technical data

Power rating (AN) 250 kVA to 40,000 kVA

Rated voltage up to 45 kV

Compact self-supportingwinding in a one-pieceblock – optimum to with-stand short-circuit-forces

Aluminium or Copper foilused in LV-winding

High short circuit with-stand through prepreg resinimpregnated LV-foil winding

Self-extinguishing in theevent of secondary fire orarcing and no raised dangerpotential as no toxic gasesare released

Cylindrical cooling-ductsprovide the advantage of op-timal cooling through theinner coil

Classification acc. to IEC 60076-11– Climatic classification C2– Environmental classification E2– Fire classification F1

LV aluminium foil winding with prepreg insulation

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Pure epoxy resin reinforced with glass fibrerovings is a material of enormous strength.Modern winding processes, combined withelectronically controlled winding machinery,ensure an even distribution of glass fibre rovingsand epoxy resin and the highest precision inthe manufacture of transformer windings. Multi-spaced ribs, built-in during the winding pro-cess, integrate the HV and LV windings into asingle compact winding block.

Low voltage windings

In RESIBLOC® transformers either aluminiumor copper foils are used in the low voltagewinding, with thermal class F prepreg windingsinsulation. From the use of a foil winding, aconsiderable reduction in axial short circuit for-ces is obtained.

To raise the space factor on smaller rated trans-formers, the LV-windings are produced using awire layer winding. LV-windings that are to ope-rate with system voltages higher than 1.1 kVare produced in the same manner as the highvoltage windings.

Whenever necessary to ensure satisfactorycooling, the LV-windings are equipped with ad-ditionally axial cooling ducts.

High voltage windings

The cylindrical high voltage windings are wounddirectly on the LV-windings, in a further pro-duction process.

The RESIBLOC® transformers’ superior lightningimpulse voltage withstand results from the linearimpulse voltage distribution, obtained throughuse of the layer-winding concept.

Circular, or for larger cross-sections, rectangu-lar copper conductor material to insulation classH is used. The outer encapsulation and the in-termediate layer winding insulation consist ofinsulation class F glass fibre reinforced epoxyresin material, applied during the ROVING-winding process.

The finally completed winding block is curedunder rotation, in purpose designed curingovens.

Glass fibre reinforcement - guarantee against cracks

Glass fibre rovings Layer insulation with glass fibre cross bandage

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HV layer winding

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The glass fibre portion of approx. 80 %, com-bined with glass fibre cross and radial bracingsare introduced during the winding process.Exceptionally powerful winding blocks result,with high mechanical strength in both axial andradial directions.

Windings with high short circuit withstand levelsand extreme thermal shock stability at highestand lowest temperature levels result. The risksof cracking, resulting from different thermal ex-pansion coefficients between conducting andsolid resin insulation materials, are effectivelyprevented for the transformers total lifetime.Furthermore, cracking caused under extremeoperational conditions, i.e. arctic frozen climatesor following surge overloads will never arise.

Multiple cooling channels, located within theHV-windings of larger rated transformers enablethese to be made as self cooled units (AN). Theglass fibre roving technology makes it possibleto produce the largest windings as a single piece,due to the exceptionally high mechanical strengthachieved from this form of solid insulation.

The windings are effectively protected againstmechanical and chemical effects, through theencapsulation with glass fibre reinforced epoxyresin insulation materials, insensitive to humidityand practically maintenance free.

As no casting moulds are used to manufacturethe RESIBLOC® transformers, customised win-dings, built to a customers specification areeasier produced. The smooth outer surfaces ofthe winding restrict dirt and dust from accu-mulating.

By using the block winding principle, both highand low voltage windings are bound together bymulti-spaced ribs, forming a single, solid block.Any movements resulting from either axial orradial forces during short circuit are thereforeprevented. The block winding principle ensuresHV- & LV-winding spacings, vital for voltagewithstand is guaranteed, and will remain un-changed during short circuit, or transformermovement.

Cross section of RESIBLOC® winding

Core & Coils – Optimal Materials & Design Geometry

RESIBLOC® windings

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Core design

The core design is an important factor for thequality of any transformer. The core materials aregeometrically arranged, and greatly determine theunit’s loss and noise levels.

Grain oriented transformer sheet core steel isused in the core construction, cut from rolls onthe most modern, fully automated core cuttingmachinery and stacked into limb and yoke pack-ages. The use of the best space factor and hig-hest dimensional accuracy result in low corelosses and noise values.

The limb and yoke core section joints are in-terleaved and mitred at 45°, creating the optimumconformity of magnetic flux pattern to thepreferred magnetic flow. The modern step-laptechnology (SLT) creates multiple stepped jointsbetween the limbs and yoke sections. Everycore is given a protective epoxy resin finish, alasting protection against corrosion. The blockwindings are firmly braced to the core usingpurpose made resin insulation strips.

Mechanical structure

The RESIBLOC® transformers yoke laminatesare firmly held together by steel core clamps.The upper and lower yoke core clamps areconnected through core tie-straps.

RESIBLOC® transformers are provided with flatrollers, enabling both longitudinal and traver-se movement. To raise the transformer, four lif-ting holes are situated in the upper core clamps,designed for use with a chain or cable, with alift angle of ≥ 60 °

Finish

The RESIBLOC® transformer frame, core clamps,etc. are given a final RAL 2000 finish colour.

10 ABB

Tests

Prior to dispatch, every single RESIBLOC® trans-former undergoes a detailed individual test andinspection, including all routine tests accordingto IEC 60076-11 and VDE 0532. These includes:

Routine Tests

Measurement of voltage ratio and check ofphase displacementSeparate-source AC withstand voltage test(applied voltage)Induced AC overvoltage withstand testMeasurement of no load loss and currentMeasurement of winding resistanceMeasurement of impedance voltage, short-circuit impedance and load lossPartial discharge measurementFunction- and insulation test of control wi-ring, auxiliary operation, tests on on-loadtap changers, where appropriate

Additional type- and special tests can be executedon request:

Type Tests:

Lightning impulse (LI) testTemperature-rise test

Special Tests:

Determination of sound levelsDetermination of capacitances of windings to earth and between windingsMeasurement of zero-sequence impedance(s) on three-phase transformersMeasurement of the harmonics of the no-load currentMeasurement of insulation resistance toearth of the windings, and between thewindingsPartial discharge measurement for isolatednetworks

Tested one by oneFire safety

RESIBLOC® transformers can safely be charac-terised as hard to ignite or self-extinguishing.Less than 5% of the materials used can burn ifthe transformer is drawn into a normal fire. Testshave proven that RESIBLOC® transformers ful-fil the requirements of Fire Behaviour Class F1,acc. to IEC 60076-11:

No toxic gases, and no gases appear otherthan those present in any normal fire.This very favourable fire behaviour is adirect result from the use of approx. 80% glass fibre content in the insulationmaterial. The excellent self-extinguishing effect isachieved without using anyenvironmentally undesired halogens.

Fire test equipement

11ABB

Deep-freeze temperature test at -60°C

RESIBLOC® transformers have been severely te-sted at the Department of High-Voltage DielectricTesting of Karlsruhe University:

The RESIBLOC® transformer passed a deep-freeze temperature storage test at -60°C, whereasthe class C2 according to VDE 0532 part 6 andIEC 60076-11 requires only -25°C.

Additionally, 3 thermal shock load tests havebeen made: 2 tests at double rated current at --60°C and a third test with 2.55 times rated cur-rent, also at -60°C. VDE requires only 1 test tobe made at -25°C. Full IEC 60076-11 routinetests, a well as a partial discharge test were per-formed before and afterwards.

These tests prove that the RESIBLOC® transfor-mers exceed the requirements of VDE 0532 resp.IEC 60076-11, class C2. Therefore the RESI-BLOC® is very well suited for operation in arc-tic conditions and for applications with stronglyvariable loads.

t/hours

12 ABB

IP 21 enclosures

Enclosures to the class IP 21 provide entry pro-tection against solid objects ≥ 12 mm diameterand dripping water. This enclosure type is sup-plied with grilled base-plate and side-mountedgrills to front and rear, enabling good cooling air-flow.

IP 23 enclosures

The IP 23 enclosures offer more protection thanthe IP 21, with resistance to dripping water upto a vertical 60° angle. Outdoor units will needadditional rain covers over the grills, to avoid anyrainwater entry.

Specially adapted units are available.

Special enclosures

Specially designed enclosures can be provided,suitable to individual customer requirements,i.e.:

Protection class IP X4D provides entry pro-tection against solid objects > 12mm andalso protects against entry of wire ≥ 1mm.Additionally, this protection class preventsthe entry of sprayed water from all direc-tions.Protection class IP 54 offers - in addition toIP X4D – complete touch protection andprotection against accumulation of dange-rous dusts. The enclosure is provided witha cooler on ratings above 1000 kVA, eitheras air-water or air-air cooler.

On request, we will gladly bid enclosures toother protection classes.

Enclosures in stainless steel or in other materialscan be provided.

Enclosure protection

Standard RESIBLOC® transformers are suppliedas protection class IP 00, i.e. without enclosures.Additional enclosure protection to differentprotection classes are possible.

General design

All enclosures are manufactured using galvanisedsheet steel, with an optional paint finish on re-quest. The enclosures use bolt on, lift-off, frontand rear panels for easiest cable connectionsand reconnection of HV-voltage tappings. Cableentry cut-outs are provided in the enclosurebase-plate.

To ensure adequate cooling air supply, a spacemust exist between the enclosure base-plateand the floor. The recommended cooling airvolume is approx. 4m3 per kW per minute ofdissipated heat loss at 75°C operating tempera-ture.

The precise enclosure for any site

Enclosure IP 23

Enclosure IP X4D

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IP 23 enclosure with raincover and OLTCEnclosure IP 54

Special outdoor enclosure

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RESIBLOC® - special designs for special applicationsAlthough the standard design of RESIBLOC®

cast resin transformers and regularly manufac-tured enclosures satisfy most of our customersneeds, special operating or site conditions willalways demand the creation of special designs.

The flexibility in the RESIBLOC® concept ena-bles most requirements to be fulfilled. Variationssuch as single phase, 3-winding transformers,or transformers with special terminal arrange-ments, cable supports, flange connections tomatch busbar systems, are regularly being dispat-ched to clients worldwide. RESIBLOC® trans-formers can be supplied with additional equip-ment, for example: earthing switches, load orno-load break switches and fuses etc.

The RESIBLOC® is regularly produced in thefollowing Special Designs, and used for thefollowing Special Applications:

– Single phase transformer– Triple winding/Dual secondary transformer– Dual HV winding transformer– Energisation transformer– Oven transformer– Rectifier transformer– Auto transformer– Traction transformer– OLTC transformer– Railway applications – Marine: propulsion & distribution – Nuclear energy – Windmill power – Mining duty

IP 54 RESIBLOC® transformer with AFAF cooler -mining application

IP 54 RESIBLOC® transformer with AFWF cooler - marine application

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LV busbar termination

RESIBLOC® single phase transformer

20 MVA RESIBLOC® transformer with on load tap changer

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2 stage temperature control

Forced air cooling

Overloadable to the limit, without riskOverload capability

The favourable long time-constants of cast resintransformer windings allow short-period highoverloads during operation. Full benefit can betaken from this, when considering the trans-formers power rating. When prior to the over-load, the RESIBLOC® transformer is only partiallyloaded and/or operated at a lower ambient tem-perature than it’s design value, the windingsend temperature of 155 °C will not be exceededby specific overloads.

Overload protection

High ambient site temperatures, inadequate coo-ling air-flow and heavy system loads may re-sult as a transformers thermal overloading. EveryRESIBLOC® transformer should have a tempe-rature monitoring system installed for maximumprotection and safety.

The typical temperature monitoring system wouldbe equipped with PT100 sensors and controls all3 winding phases.

Forced air cooling

RESIBLOC® transformers can optionally beequipped with cross-flow cooling fans. Thesefans will increase the rated output of the trans-former by up to 40 % and have low noise levelsand ideal long time control of irregular over-loads.

Thermal sensors automatically control the fans,avoiding excessive and unnecessary use of thecooling fans.

Overload protection schematic

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Tolerances, according to IEC:

1 Lossesa) Total losses

+ 10 % total losses

b) No-load and/or load losses+ 15 % of no-load or load losses on condition that the tolerance for total losses are not exceeded.

2. Voltage ratioRated voltage ratio (principal tapping)

the lower of the following values:a) ± 0.5 % of the obligatory rated valueb) a percentage of the obligatory

voltage ratio which equals ± 1/10 ofthe measured rated impedancevoltage percentage

3. Impedance voltage (principal tapping)± 10 % at rated current

4. Impedance voltage for other tappings± 15 % of agreed value for this tapping

5. No-load current+ 30 % of the obligatory no-load current

Transformer for 60 Hz

Transformers designed for 50 Hz operation canalso operate on a 60 Hz supply with thefollowing amendments to the technical data:

Power: approx. 97 %No-load losses: 80 - 85 %Load losses: approx. 105 %Impedance: 115 - 120 %

RESIBLOC® transformers can be supplied withrated voltages up to 45 kV. The HV-windingscan be supplied with reconnectable tappings,to function from numerous voltages.

Tapping range

The standard tapping range is ±2 x 2.5%. Othertapping ranges are available on request.

Impedance voltage

For impedance voltage values refer to the tableon page 20. Transformers with other impedancevalues are available on request.

Connection groups

Standard connection group is either Dyn 5 orDyn 11. Other vector groups are available.

Temperature rise

Standard RESIBLOC® transformers are by de-sign restricted to 100 K, the temperature riselimit of class F according to IEC 60076-11 andVDE 0532.

Noise levels

Noise levels are detailed in the table on page 20,and shown in sound-power levels. These levelsapply for IP 00 transformers, measured at 1 mdistance.

Technical data

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Maximum temperatures

Unless otherwise requested, the RESIBLOC®

transformer is designed to meet the maximumtemperature limits as defined in the standardsIEC 60076-11 and VDE 0532, part 6:

Maximum ambient temperature 40 °C

Average of the hottest month 30 °C

Average in any one year 20 °C

Standard RESIBLOC® transformers can be usedin ambient temperatures up to 55 °C, providedcorrectly reduced loads are applied. As a guide,for each 10 °C increased ambient temperature,a 7% load reduction must be observed. Speciallydesigned, fully loadable units for use in highercooling air conditions are available.

Minimum temperatures

The colder temperatures are of special interestfor the dry type transformers, not only duringtransport and storage, but also in service. TheRESIBLOC® transformer can be placed inoperation at temperatures as low as -60°C, with-out special considerations. There are no re-strictions, even after longer periods of lowloading, or lengthy times completely switched-off. The extreme mechanical strength of theglass fibre reinforced cast resin roving windingseliminates any danger of cracking in the win-dings.

Altitude

According to IEC 60076-11 and VDE 0523, part6, a normal height above sea level of 1000 m(3300 feet) must not be exceeded. For operati-on at higher altitudes, a special technical de-sign is necessary to allow for the cooling airand the dimensioning of the electrical air insu-lation distances.

Humidity and pollution

The RESIBLOC® transformer is designed accor-ding to the demands of IEC 60076-11 class E2.

The RESIBLOC® is for use under extreme serviceconditions, with high humidity levels, frequentcondensation and/or pollution and for normaloutdoor application in proper ventilatedenclosures.

Service conditions

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Outline drawing - standard ABB RESIBLOC® transformer IP 00

Outline drawing - standard ABB RESIBLOC® transformer IP 23

1 HV terminal 2 LV terminal3 LV star point4 Ground earth. Terminal5 Rating plate6 Terminal strip7 Lifting eyes

1 HV terminal 2 LV terminal3 LV star point4 Ground earth. Terminal5 Rating plate6 Terminal strip7 Lifting eyes

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Normal no load loss

250 10/0.4 6 690 3400 65 Dyn11 1220 660 1280 810 1510 1120 1660 1220 520

400 10/0.4 6 1000 5000 68 Dyn11 1370 810 1360 1420 1660 1170 1710 1580 670

500 10/0.4 6 1200 5700 69 Dyn11 1410 810 1340 1580 1750 1210 1700 1750 670

630 10/0.4 6 1370 6600 70 Dyn11 1470 810 1400 1810 1820 1210 1750 2000 670

800 10/0.4 6 1700 7700 72 Dyn11 1570 810 1430 2250 1940 1250 1760 2450 670

1000 10/0.4 6 2000 8800 73 Dyn11 1490 890 1700 2530 1680 1180 1950 2750 820

1250 10/0.4 6 2400 10500 75 Dyn11 1700 980 1680 2970 1990 1300 2130 3200 820

1600 10/0.4 6 2800 12700 76 Dyn11 1690 980 1890 3690 2060 1340 2260 3950 820

2000 10/0.4 6 3500 15500 78 Dyn11 1770 1050 2070 4460 2150 1360 2540 4740 820

2500 10/0.4 6 4300 19000 81 Dyn11 1790 1300 2230 5350 2170 1570 2800 5690 1070

3150 10/0.4 6 5200 22600 83 Dyn11 1990 1300 2330 6820 2420 1650 2900 7200 1070

Reduced no load loss

250 10/0.4 6 540 3400 57 Dyn11 1200 660 1260 1290 1480 1140 1650 1440 520

400 10/0.4 6 780 5000 60 Dyn11 1350 810 1360 1570 1660 1250 1730 1750 670

500 10/0.4 6 940 5700 61 Dyn11 1350 810 1440 1800 1660 1230 1810 1980 670

630 10/0.4 6 1100 6600 62 Dyn11 1510 810 1410 2100 1850 1280 1740 2300 670

800 10/0.4 6 1330 7700 64 Dyn11 1630 810 1470 2590 1970 1310 1780 2800 670

1000 10/0.4 6 1500 8800 65 Dyn11 1550 980 1750 3030 1900 1370 2080 3260 820

1250 10/0.4 6 1880 10500 67 Dyn11 1630 980 1940 3540 1960 1350 2370 3800 820

1600 10/0.4 6 2100 12700 68 Dyn11 1750 980 1860 4530 2150 1420 2230 4800 820

2000 10/0.4 6 2750 15500 70 Dyn11 1780 1050 2060 5340 2170 1440 2530 5640 820

2500 10/0.4 6 3000 19000 71 Dyn11 1810 1300 2440 6330 2180 1590 3010 6680 1070

3150 10/0.4 6 3900 22600 73 Dyn11 1940 1300 2450 7160 2330 1630 3020 7530 1070

Normal no load loss

250 20/0.4 6 880 3300 65 Dyn11 1320 710 1560 1360 1740 1340 1940 1570 520

400 20/0.4 6 1200 4800 68 Dyn11 1410 810 1630 1700 1800 1340 2020 1920 670

500 20/0.4 6 1400 6000 69 Dyn11 1410 810 1770 1950 1800 1350 2160 2180 670

630 20/0.4 6 1650 6900 70 Dyn11 1430 810 1790 2160 1830 1390 2180 2410 670

800 20/0.4 6 1900 8100 72 Dyn11 1530 820 1830 2570 1940 1400 2200 2820 670

1000 20/0.4 6 2300 9600 73 Dyn11 1610 980 2000 3030 2040 1420 2450 3310 820

1250 20/0.4 6 2700 11500 75 Dyn11 1730 980 1910 3490 2150 1460 2370 3770 820

1600 20/0.4 6 3100 14000 76 Dyn11 1730 980 2210 4420 2160 1500 2680 4720 820

2000 20/0.4 6 4000 16700 78 Dyn11 1810 1050 2450 5260 2220 1500 2920 5590 820

2500 20/0.4 6 5000 20000 81 Dyn11 1890 1300 2410 6220 2340 1690 2880 6590 1070

3150 20/0.4 6 6000 24000 83 Dyn11 1970 1300 2590 7170 2430 1730 3160 7580 1070

Reduced no load loss

250 20/0.4 6 650 3300 57 Dyn11 1430 720 1600 1730 1820 1360 1990 1950 520

400 20/0.4 6 940 4800 60 Dyn11 1410 810 1630 1920 1790 1370 2010 2140 670

500 20/0.4 6 1100 6000 61 Dyn11 1450 810 1780 2200 1850 1390 2160 2440 670

630 20/0.4 6 1250 6900 62 Dyn11 1470 810 1880 2570 1860 1440 2260 2830 670

800 20/0.4 6 1460 8100 64 Dyn11 1590 830 1910 3330 2000 1480 2300 3610 670

1000 20/0.4 6 1800 9600 65 Dyn11 1670 980 1970 3610 2150 1610 2300 3910 820

1250 20/0.4 6 2080 11500 67 Dyn11 1670 980 2190 4090 2060 1450 2650 4390 820

1600 20/0.4 6 2400 14000 68 Dyn11 1730 980 2320 5010 2130 1410 2790 5320 820

2000 20/0.4 6 3100 16700 70 Dyn11 1830 1050 2460 6140 2250 1510 2930 6480 820

2500 20/0.4 6 3600 20000 71 Dyn11 2010 1300 2660 7680 2430 1560 3130 8070 1070

3150 20/0.4 6 4400 24000 73 Dyn11 2090 1300 2630 8510 2540 1650 3200 8920 1070

Pow

er (k

VA

)

HV

/ L

V (k

V)

Imp

edan

ce (%

)

No-

Load

loss

(W)

Load

loss

(W)

T =

75°

C

Noi

se le

vel (

dB

)S

ound

pow

er

Vec

tor

grou

p

L =

Len

gth

(mm

)IP

00

W=

Wid

th (m

m)

IP 0

0

H=

Hei

ght

(mm

)IP

00

Tota

l wei

ght

(kg)

IP 0

0

L= L

engt

h (m

m)

IP 2

3

W=

Wid

th (

mm

)IP

23

H=

Hei

ght

(mm

)IP

23

Tota

l wei

ght

(kg)

IP 2

3

D=

Rol

ler

dis

tanc

e(m

m)

Subject to change

21 ABB

Distribution transformers offered by ABB

Liquid filled distribution transformers:

- up to 72,5 kV- single phase and three phase- ground mounted, pole mounted or pad mounted

Dry transformers:

- Open Wound- Vacuum Cast Coil- RESIBLOC® Dry Type Transformers

Transformers for special applications:

- Railway application- Marine: propulsion and distribution- Carrier Vessel Nuclear- Rectifier Transformers- Variable Speed Drive- Excitation Transformers- HVDC Converter- Transformers for windmills- Autotransformers- Grounding/Earthing Transformers- Neutral Earthing Reactors- Current Limiting Reactors- Arc Furnace- Boostertransformers

Services offered by ABB Distribution Transformers

- Installation and Commissioning- Training- Testing and maintenance- Retrofits, Revamping and up-grading- Spare parts procurement

Technical information available fromabb.com/distributiontransformers

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ABB TransformersPower Technologies Division

Affolternstrasse, 448050 ZurichSwitzerland

www.abb.com/transformerse-Mail: [email protected]

Note:

We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail.ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document.

We reserve all rights in this document and in the subject matter and illustrations containedtherein. Any reproduction – in whole or in parts – is forbidden without ABB’s prior writtenconsent.

Copyright© 2003 ABB All rights reserved.