ABB Transformers

PowerIT Liquid Filled Transformers

IEC standard, small and medium, rated power ≤2000kVA, HV ≤36kV

Even our standard solutions are specialIn almost every place where people live andwork you will find at least one transformer. Butas long as it keeps working and supplying powerto the escalator in the department store, thehotel lift, the office computer, the oven in thelocal bakery, the farm machinery or the petro-chemical plant nobody gives it a second thought.

However, transformers are one of the most im-portant units in every production process. With-out them the core activities of nearly every bu-siness and factory would come to a standstill –with serious financial consequences.

After nearly 100 years developing and manu-facturing transformers we are well aware of thisdependency. This is why we never compromi-se on the performance, security or reliability ofour products. Nor on design, materials, manu-facturing methods, environmental protection orrecycling.

Our objective is to support you and to add valueto your activities by offering a comprehensiverange of top quality transformers. We also pro-vide top class service and support.

With this approach we can tailor the most ap-propriate technical solution to every problem. Ahigh quality solution with better service andsupport, better for the environment and yet withgreater availability and a lower total cost ow-nership than our competitors.

All over the world – in underground railways,in amusement parks and every place wherepeople work or live – you will find ABB trans-formers at work.

ABB invites you to find the optimal solution toyour application and to see with your own eyesthat even our standard solutions are special.

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Mission

ABB is a global leader in power and automationtechnologies 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 sold 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 IndustrialIT

and the most up to date technologies, providingthe highest quality for standard and specialtyproducts as well as solutions.

Introduction to IndustrialIT

IndustrialIT is ABB's name for a powerful com-mitment to solutions for Real-Time Automationand Information. IndustrialIT guides every stepABB takes going forward in technology, businessprocesses, and more. All ABB Distribution Trans-former products are IndustrialIT certified, whichguarantees structured, easy accessible and on-line documentation. It can be viewed on its ownbut also as a part of a larger system.

Quality statement

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

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Description

ABB Distribution Transformers manufacture awide range of oil and dry type transformers.This brochure describes three phase oil typedistribution transformers up to 2000 kVA and36kV. They are used to step down three-phasehigh voltage to low voltage for power distribu-tion, mainly in urban areas and for industrialapplications. Our standard transformers are de-signed for use in moderate climates and can beinstalled both outdoors and indoors. The loa-ding capability is designed to comply withIEC 354. Distribution transformers can be her-metically sealed (the tank is completely filledwith oil) or equipped with an oil conservator.Tanks are constructed with flexible corrugatedwalls (fins), which enables sufficient cooling ofthe transformer. The corrugated walls also com-pensate for the changes in the oil volume duringoperation. An advantage of the hermetically sea-led transformers is that oil is never in contactwith the atmosphere thus avoiding periodic oilanalysis.

Our transformers are adaptable for pole moun-ting or assembly in substations.

Standard features

Hermetically sealed:Corrugated tankHV and LV DIN bushingsOff-circuit tap changerOil drain valveOil filling plug on the coverLifting lugsEarthing terminalsRating plateMineral oil (inhibited or uninhibited)Overpressure valve

Additionally, for transformers with a conser-vator:

Magnetic oil level indicator Buchholz relayOil filling plug on the conservatorDehydrating breather

Other product types with different dimensionsand technical specifications can be designedand manufactured on request.

Construction features

ABB technology – CommonTechnology (CT)

Our transformers are manufactured to provideyou with a high quality and reliable transfor-mer. ABB has developed a Common Techno-logy (CT) platform, which defines design stan-dards, equipment and processes used in all ourfactories. Use of this Common Technology en-ables us to guarantee our customers a high qua-lity and consistent product.

The key production features of our small and me-dium distribution common technology are:

oval corestep lapautomatic cutting and stacking of core legswindings directly wound on the core legsor mandrels with 2 HV coils in parallel(smallest units)epoxy diamond dotted paper insulationbetween LV layerstapered or full width layer insulation inHV windings

What we achieved is:

standardisation of productsautomation of productionstable process and qualityhigh reliabilityhigher LV insulation level

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Core

The magnetic circuit is of the three-column typewith mitred joints. It is manufactured with first-rate, grain oriented magnetic, cold-rolled silic-on steel laminations. The mounted core is clam-ped down in order to reduce vibrations and mi-nimize noise levels. Further noise level and noload losses decreasing are achieved by step lapcore construction.

Core design is an important factor of any trans-former’s efficiency. The geometric core arran-gement and the materials chosen determine thelosses and noise levels. Grain oriented trans-former sheet steel is used in the core construc-tion. It is cut by the most modern, fully auto-mated core cutting machinery and assembledinto limb and yoke sets. This results in high di-mensional accuracy, excellent space factor, andlow loss values. By using step-lap technology,the no-load currents can be reduced improvingthe drawbacks associated with reactive powercompensation.

Windings

The windings are made of two components,conductor material and the insulation material.The conductors used are a high grade electro-lytic copper or aluminium. They are insulatedwith pure cellulose or double enamel. The HVwindings are wound either with round, doubleenamel insulated, or rectangular, paper insula-ted wire. The LV windings are wound with rec-tangular paper insulated wire, enameled wireor foil. The windings are designed to meet thecustomer’s insulation level requirements andalso to withstand the short circuit forces as ou-tlined in IEC 60076-5. The neutral points of LVwindings are brought up to the tank cover.

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Off-circuit tap changer

The tappings of the HV winding, are connectedto the off-circuit tap changer located horizontallybetween the yoke and the tank cover. The hand-le is located on the cover and should only beoperated when the transformer is de-energized.The design prevents setting the off-circuit tapchanger to intermediate positions. The mecha-nism can also be padlocked during normal trans-former operation.

Insulating liquids

The mineral oil – both inhibited and uninhibi-ted types - with its electrical and chemical cha-racteristics is in compliance with the IEC Stan-dards and is P.C.B. and P.C.T. free.

ABB provides and promotes its own solutionas well. BIOTEMP® is biodegradable, vegeta-ble-oil-based dielectric insulating fluid used inelectrical transformers. The product reduces en-vironmental threats posed by transformer insu-lating oil spills.

On special requests other fluids are available.

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...manufactured, assembled, tested and painted in the factoryTank and cover

Tank walls are made of corrugated cooling sur-faces. The bottom plate, side and frames are ofwelded construction. The welds are tested for oiltightness. All protection device flanges, bus-hings, tap switch drive and lifting lugs are fittedon the tank cover. The cover is bolted to thetank frame.

The underbase channel is welded to the baseplate and the rollers are suitable for either lon-gitudinal or transverse movements. Single pole3-phase transformers are delivered with flat baseas standard, but optionally can be equippedwith underbase channel beams where bi-direc-tional wheels are a requirement.

The complete tank is tested and approved ac-cording to CENELEC HD 428.6 S1 standard. Spe-cial type lifecycle tests of more than 10 000 cy-cles simulating over 30 years operation werecarried out with positive results.

Painting and surface treatment

All metal parts are carefully sand-blasted. Theinitial protective coating is made up of a singlecoat of one pack epoxy paint. The final paintcoating is made up of several coats of paint.Alternatively, hot dip galvanized transformerscan be supplied for use in heavy corrosion areas.All units are painted in RAL 7033 but othercolours are available on request. Detailed pain-ting procedures for different environmental con-ditions are also available.

Options and accessories

Plug-in bushings on HV sideDial type thermometer with or withoutcontacts Oil level indicatorPressure relief valve with or withoutcontactsMultifunction protection device Cable boxes Off-circuit tap changer with 3 - 7 positi-ons (9 on request)Thermometer pocket Skid base or bi-directional rollersIntegrated pole brackets on tank Arcing hornsDual voltage transformers Galvanized tank

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Quality and testing

Our production facilities where all ABB trans-formers are manufactured are certified acc toISO 9001 and ISO 14001.

At the end of the manufacturing process thetransformers are individually tested in accor-dance with the IEC Standards.

The routine tests are:

Voltage ratio and phase displacement IEC 60076-1Insulation resistance IEC 60076-1Applied voltage test (insulation to ground) IEC 60076-3Induced voltage test (winding insulation)IEC 60076-3No load loss test IEC 60076-1Winding resistance IEC 60076-1Impedance and load loss test IEC 60076-1Control wiring, auxiliary operation.

Upon request, witnessed type/special tests canbe carried out:

Insulation lighting impulse test IEC 60076-3Temperature rise test IEC 60076-2Sound level test IEC 600551Partial discharge test IEC 600270

Specially designed reinforced transformerssuitable for pole mounting, protected with arcinghorns are tested in accordance with to SFS 2646steep wave execution!

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References

ABB has thousands of liquid filled transformersat work all over the world in many different ap-plications, such as utilities, windmills, compactsubstations and industrial transformers.

ABB is different…

…offering the best and most reliable productsacc to meet the demanding requirements of allour customers.

We offer our customers:

Quality – guaranteed by the most moderntechnology, equipment, processes andconstantly improved in ABB R&D centresall over the worldSpeed – the shortest delivery time – within days instead of weeks Production and management processesbased on the newest Industrial IT factoryconcept to allow control production everyminute in the real timeFocus Factories concept – specializedfactories that are focused on specificproduct ranges to deliver consistentquality and competitive products acrossthe globe.

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Outline drawing

1 Thermometer pocket2 Tap-changer handler3 Oil drain valve4 Rating plate5 Lifting lug6 LV bushings7 HV bushings8 Filling plug9 Roller

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Technical Data

HV uk kVA NLL LL losses L W H oil weight total weight Lwa(75°C) comb. appr. appr. appr. appr. appr.

kV % W W mm mm mm kg kg dB

50

10 4 50 190 1100 A - A' 780 670 890 90 365 55

50 125 1350 B - C' 880 670 890 90 370 47

50 125 1100 A - C' 780 670 890 90 375 47

50 125 875 C - C' 860 645 890 100 420 47

20 4 50 190 1100 A - A' 840 645 1015 100 395 55

50 125 1350 B - C' 780 620 1015 95 375 47

50 125 1100 A - C' 840 645 1015 110 420 47

50 125 875 C - C' 900 670 1015 130 475 47

Wheelbase (D): 520 mm Wheel diameter: 125 mm

100

10 4 100 320 1750 A - A' 840 795 1040 130 580 59

100 210 2150 B - C' 1140 745 1090 150 610 49

100 210 1750 A - C' 1140 745 1090 145 660 49

100 210 1475 C - C' 900 670 1090 150 690 49

20 4 100 320 1750 A - A' 1200 770 1065 145 625 59

100 210 2150 B - C' 1200 770 1065 145 605 49

100 210 1750 A - C' 1200 770 1065 145 625 49

100 210 1475 C - C' 960 690 1115 165 680 49


160

10 4 160 460 2350 A - A' 1060 690 1140 180 840 62

160 300 3100 B - C' 960 740 1140 180 805 52

160 300 2350 A - C' 1060 690 1140 180 840 52

160 300 2000 C - C' 1060 690 1140 180 865 52

20 4 160 460 2350 A - A' 1020 715 1215 205 880 62

160 300 3100 B - C' 1060 690 1215 180 825 52

160 300 2350 A - C' 1020 715 1215 205 880 52

160 300 2000 C - C' 1020 715 1215 205 905 52


200

10 4 200 550 2850 A - A' 1120 715 1140 200 960 65

200 360 3800 B - C' 1120 865 1140 215 960 55

200 360 2850 A - C' 1120 715 1140 200 960 55

200 360 2450 C - C' 1120 765 1140 200 1010 55

20 4 200 550 2850 A - A' 1120 765 1215 200 990 65

200 360 3800 B - C' 1120 865 1215 210 980 55

200 360 2850 A - C' 1120 765 1215 200 990 55

200 360 2450 C - C' 1380 780 1215 230 1090 55


250

10 4 250 650 3250 A - A' 1320 765 1245 205 1110 65

250 425 4200 B - C' 1320 815 1245 215 1100 55

250 425 3250 A - C' 1320 765 1245 205 1110 55

250 425 2750 C - C' 1020 715 1275 200 1160 55

20 4 250 650 3250 A - A' 1080 780 1320 220 1135 65

250 425 4200 B - C' 1320 765 1245 230 1140 55

250 425 3250 A - C' 1080 780 1320 220 1140 55

250 425 2750 C - C' 1080 780 1350 230 1230 55


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400

10 4 400 930 6000 B - A' 1420 890 1350 270 1350 68

400 930 4600 A - A' 1350 850 1420 260 1310 68

400 610 6000 B - C' 1500 940 1400 280 1340 58

400 610 4600 A - C' 1250 850 1500 260 1400 58

400 610 3850 C - C' 1260 850 1540 340 1600 58

20 4 400 930 6000 B - A' 1420 890 1400 270 1350 68

400 930 4600 A - A' 1350 850 1470 260 1310 68

400 610 6000 B - C' 1500 940 1450 280 1340 58

400 610 4600 A - C' 1250 850 1550 260 1400 58

400 610 3850 C - C' 1260 850 1590 340 1600 58


500

10 4 500 1100 5500 A - A' 1420 850 1420 280 1500 69

500 730 5500 A - C' 1470 850 1810 310 1720 59

20 4 500 1100 5500 A - A' 1420 850 1470 280 1500 69

500 730 5500 A - C' 1470 850 1860 310 1720 59


630

10 4 630 1300 8400 B - A' 1590 1010 1530 350 1800 70

630 1300 6500 A - A' 1220 980 1530 410 2155 70

630 860 8400 B - C' 1800 1100 1620 400 2070 60

630 860 6500 A - C' 1200 900 1580 390 2040 60

630 860 5400 C - C' 1220 850 1630 340 2040 60

10 6 630 1200 8700 B - A' 1660 1010 1490 410 1810 70

630 1200 6750 A - A' 1420 850 1540 390 1900 70

630 800 8700 B - C' 1580 1010 1520 360 1800 60

630 800 6750 A - C' 1220 980 1510 400 2000 60

20 4 630 1300 8400 B - A' 1590 1010 1580 395 1790 70

630 1300 6500 A - A' 1220 980 1580 410 2155 70

630 860 8400 B - C' 1800 1100 1670 400 2070 60

630 860 6500 A - C' 1200 900 1630 390 2040 60

630 860 5400 C - C' 1220 850 1700 340 2040 60

20 6 630 1200 8700 B - A' 1660 1010 1530 410 1810 70

630 1200 6750 A - A' 1420 850 1590 390 1900 70

630 800 8700 B - C' 1580 1010 1570 360 1800 60

630 800 6750 A - C' 1220 980 1560 400 2000 60


800

10 6 800 1300 10000 B - A' 1740 1090 1530 490 2230 72

800 1300 8500 A - A' 1680 940 1540 430 2190 72

800 920 10000 B - C' 1470 980 1620 460 2400 62

800 920 8500 A - C' 1560 870 1570 460 2270 62

20 6 800 1300 10000 B - A' 1740 1090 1580 490 2230 72

800 1300 8500 A - A' 1680 940 1590 430 2190 72

800 920 10000 B - C' 1470 980 1670 460 2400 62

800 920 8500 A - C' 1560 870 1620 460 2270 62


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1000

10 6 1000 1700 13000 B - A' 1770 1080 1740 610 2650 73

1000 1700 10500 A - A' 1780 1100 1630 500 2520 73

1000 1100 13000 B - C' 1700 1120 1800 550 2740 63

1000 1100 10500 A - C' 1900 1220 1600 510 2750 63

20 6 1000 1700 13000 B - A' 1770 1080 1790 610 2650 73

1000 1700 10500 A - A' 1780 1100 1680 500 2520 73

1000 1100 13000 B - C' 1700 1120 1850 550 2740 63

1000 1100 10500 A - C' 1900 1220 1650 510 2750 63


1250

10 6 1250 2100 15400 B - A' 1900 1180 1760 640 3030 75

1250 2100 13000 A - A' 1880 1170 1810 600 3080 75

1250 1320 15400 B - C' 1960 1250 1750 605 3210 65

1250 1320 13000 A - C' 1880 1180 1730 620 3340 65

20 6 1250 2100 15400 B - A' 1900 1180 1810 640 3030 75

1250 2100 13000 A - A' 1880 1170 1860 600 3080 75

1250 1320 15400 B - C' 1960 1250 1800 605 3210 65

1250 1320 13000 A - C' 1880 1180 1780 620 3340 65


1600

10 6 1600 2600 20000 B - A' 1940 1160 2040 900 3880 76

1600 2600 17000 A - A' 1990 1270 1860 680 3640 76

1600 1700 20000 B - C' 1930 1240 1760 640 3610 66

1600 1700 17000 A - C' 1980 1160 1800 750 4140 66

20 6 1600 2600 20000 B - A' 1940 1160 2170 945 4050 76

1600 2600 17000 A - A' 1990 1270 1910 680 3640 76

1600 1700 20000 B - C' 1930 1240 1810 640 3610 66

1600 1700 17000 A - C' 1980 1160 1850 750 4140 66


2000

10 6 2000 3100 21000 A - A' 2070 1290 2040 870 4530 80

2000 2100 21000 A - C' 1960 1140 1900 870 4590 70

20 6 2000 3100 21000 A - A' 2070 1290 2090 870 4530 80

2000 2100 21000 A - C' 1960 1140 1950 870 4590 70


Above data are only examples to give an over-view of possible standard transformers.

Transformers can be optimized with respect tocapitalised losses for optimization of Total Costof Ownership (TCO).

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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®

Transformers for special applications like:

- 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

- Environmental Services - PCB Elimination Services

- Installation and Commissioning- Training- Testing and maintenance- Retrofits, Revamping and up-grading- Spare parts procurement- Technical information available fromabb.com/distributiontransformers

ABB TransformersPower Technologies Division

Affolternstrasse, 448050 ZurichSwitzerland

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

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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© 2004 ABB All rights reserved.

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ABB Transformers