abb ground mounded tr

Liquid filled transformersIEC standard small and medium, rated power<2500 kVA, HV ≤36 kV

2 Liquid filled transformers

Even our standard solutions are special

In almost every place where people live and work you will find at least one transformer. But as long as it keeps working and supplying power to the escalator in the department store, the hotel lift, the office computer, the oven in the local bakery, the farm machinery or the petrochemical plant nobody gives it a second thought.

However, transformers are one of the most important units in every production process. Without them the core activities of nearly every business and factory would come to a standstill – with serious financial consequences.

After nearly 100 years developing and manufacturing transformers we are well aware of this dependency. This is why we never compromise on the performance, security or reliability of our products. Nor on design, materials, manufacturing methods, environmental protection or recycling.

Our objective is to support you and to add value to your activities by offering a comprehensive range of quality transformers. We also provide top class service and support.

With this approach we can tailor the most appropriate technical solution to every problem. A high Duality solution with better service and support, better for the environment and yet with greater availability and a lower total cost ownership than our competitors.

All over the world – in underground railways, in amusement parks and every place where people work or live – you will find ABB transformers at work.

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

Quality statementOur production facilities are ISO 9001/14001, GOST certified. Our aim is to deliver your distribution transformers fast, on time and conform to your specifications.

Working with us, you have access to a worldwide network of factories and facilities serving you locally with a full range of products and solutions. Our warranty provides one ABB quality and service.

Liquid filled transformers 3

Construction features

DescriptionABB factories manufacture a wide range of oil and dry type transformers. This brochure describes three phase oil type distribution transformers up to 2500 kVA and 36kV. They are used to step down three-phase high voltage to low voltage for power distribution, mainly in urban areas and for industrial applications. Our standard transformers are designed for use in moderate climates and can be installed both outdoors and indoors. The loading capability is designed to comply with IEC 354. Distribution transformers can be hermetically sealed (the tank is completely filled with oil) or equipped with an oil conservator. Tanks are constructed with flexible corrugated walls (fins), which enables sufficient cooling of the transformer. The corrugated walls also compensate for the changes in the oil volume during operation. An advantage of the hermetically sealed transformers is that oil is never in contact with the atmosphere thus avoiding periodic oil analysis.

Our transformers are adaptable for pole mounting or assembly in substations.

Standard featuresHermetically sealed:– corrugated tank,– HV and LV DIN bushings,– off-circuit tap changer,– oil drain valve,– oil filling plug on the cover,– lifting lugs,– earthing terminals,– rating plate,– mineral oil (inhibited or uninhibited),– overpressure valve.

Additionally, for transformers with a conservator:– magnetic oil level indicator,– Buchholz relay,– oil filling plug on the conservator,– dehydrating breather.

Other product types with different dimensions and technical specifications can be designed and manufactured on request.

ABB technology – Common Technology (CT)Our transformers are manufactured to provide you with a high quality and reliable transformer. ABB have developed a Common Technology (CT) platform, which defines design standards, equipment and processes used in all our factories. Use of this Common Technology enables us to guarantee our customers a high quality and consistent product.

The key production features of our small and medium distribution common technology are:– oval core,– step lap,– automatic cutting and stacking of core legs,– windings directly wound on the core legs or mandrels with 2 HV

coils in parallel (smallest units),– epoxy diamond dotted paper insulation between LV layers,– tapered or full width layer insulation in HV windings.

What we achieved is:– standardization of products,– automation of production,– stable process and quality,– high reliability,– higher LV insulation level.


CoreThe magnetic circuit is of the three-column type with mitred joints. It is manufactured with firstrate, grain oriented magnetic, cold-rolled silicon steel laminations. The mounted core is clamped down in order to reduce vibrations and minimize noise levels. Further noise level and no load losses decreasing are achieved by step lap core construction.

Core design is an important factor of any transformer’s efficiency. The geometric core arrangement and the materials chosen determine the losses and noise levels. Grain oriented transformer sheet steel is used in the core construction. It is cut by the most modern, fully automated core cutting machinery and assembled into limb and yoke sets. This results in high dimensional accuracy, excellent space factor, and low loss values. By using step-lap technology, the no-load currents can be reduced improving the drawbacks associated with reactive power compensation.

WindingsThe windings are made of two components, conductor material and the insulation material. The conductors used are a high grade electrolytic copper or aluminum. They are insulated with pure cellulose or double enamel. The HV windings are wound either with round, double enamel insulated, or rectangular, paper insulated wire. The LV windings are wound with rectangular paper insulated wire, enameled wire or foil. The windings are designed

to meet the customer’s insulation level requirements and also to withstand the short circuit forces as outlined in IEC 60076-5. The neutral point of LV windings are brought up to the tank cover.

Off-circuit tap changerThe tappings of the HV winding, are connected to the off-circuit tap changer located horizontally between the yoke and the tank cover. The handle is located on the cover and should only be operated when the transformer is deenergized. The design prevents setting the off-circuit tap changer to intermediate positions. The mechanism can also be padlocked during normal transformer operation.

Insulating liquidsThe mineral oil – both inhibited and uninhibited types – with its electrical and chemical characteristics is in compliance with the IEC Standards and is P.C.B. and P.C.T. free.

ABB provides and promotes its own solution as well. BIOTEMP® is biodegradable, vegetable based oil dielectric insulating fluid used in electrical transformers. The product reduces environmental threats posed by transformer insulating oil spills.

On special requests other fluids are available (silicon oil or midel).


...manufactured, assembled, painted and tested in the factory

Tank and coverTank walls are made of corrugated cooling surfaces. The bottom plate, side and frames are of welded construction. The welds are tested for oil tightness. All protection device flanges, bushings, tap switch drive and lifting lugs are fitted on the tank cover. The cover is bolted to the tank frame.

The underbase channel is welded to the base plate and the rollers are suitable for either longitudinal or transverse movements. Single pole 3-phase transformers are delivered with flat base as standard, but optionally can be equipped with underbase channel beams where bi-directional wheels are a requirement.

The complete tank is tested and approved according to CENELEC HD 428.6 S1 standard. Special type lifecycle tests of more than 10 000 cycles simulating over 30 years operation were carried out with positive results.

Painting and surface treatmentAll metal parts are carefully sand-blasted. The initial protective coating is made up of a single coat of one pack epoxy paint. The final paint coating is made up of several coats of paint. Alternatively, hot dip galvanized transformers can be supplied for use in heavy corrosion areas. All units are painted in RAL 7033 but other colors are available on request. Detailed painting procedures for different environmental conditions are also available.

Options and accessories– Plug-in bushings on HV side– Dial type thermometer with two contacts

– Oil level indicator– Pressure relief valve with or without contacts– Multifunction protection device– HV and LV cable boxes (IP 44 or IP 55)– Off-circuit tap changer with 3,5 or 7 positions (9 on request)– Thermometer pocket– Skid base or bi-directional rollers– Pole brackets integrated on tank– Arcing horns– Dual high voltage transformers– Galvanized tank– Terminal box.

SmartchokeUnique ABB solution to protect transformers against ultra steep front waves which are extremely dangerous to the electrical equipments like transformers. It reduces both steepness and amplitude of high dU/dt transients. As it is integrated with the bushings the filtering takes place before it reaches the windings.

LOVOSTransformer can be equipped with LOVOS – a new generation of LV surge arresters without spark gap and with varistors of metal oxide technology. It provides protection along LV overhead lines, for different electrical equipment connected to the line, from transformers up to measuring instruments. Arresters installed on the secondary bushings reduce the overvoltages generated in the medium voltage system and transferred to the low voltage side by capacitive, magnetic or earth coupling through a transformer itself. In this way high quality of electricity supply is secured.

SmartChoke-protected, high dU/dt resistant transformer by ABB Distribution transformer equipped with LV surge arresters


Quality and references

Quality and testingOur production facilities where all ABB transformers are manufactured are certified according to ISO 9001:2000, ISO 14001:2004, PN-N-18001:2004 and GOST.

At the end of the manufacturing process the transformers are individually tested in accordance with the IEC Standards.

The routine tests are according to IEC 60076-1:– Measurement of winding resistance,– Measurement of voltage ratio and check of phase displacement,– Measurement of short-circuit impedance and load loss,– Measurement of no-load loss and current,– Dielectric routine tests,– Tests on on-load tap-changers, where appropriate. Upon request, witnessed type/special tests can be carried out:– Temperature-rise test (IEC 60076-2),– Dielectric type and special tests (IEC 60076-3),– Sound level test (IEC 60551),– Partial discharge test (IEC 60270),– Measurement of zero-sequence impedance(s) (IEC 60076-1),– Short-circuit withstand test (IEC 60076-5),

– Measurement of the harmonics of the no-load current (IEC 60076-1),

– Measurement of insulation resistance to earth of the windings.

Specially designed reinforced transformers suitable for pole mounting, protected with arcing horns are tested in accordance with to SFS 2646 steep wave execution.

ABB has thousands of liquid filled transformers at work all over the world in many different applications, such as utilities, windmills, compact substations and industrial transformers.

ABB is different……offering the best and most reliable products according to meet the demanding requirements of all our customers. We offer our customers:– Quality – guaranteed by the most modern technology,

equipment, processes and constantly improved in ABB R&D centers all over the world,

– Speed – the shortest delivery time – within days instead of weeks,

– Focus Factories concept – specialized factories that are focused on specific product ranges to deliver consistent quality and competitive products across the globe.


Outline drawing

L W

DD

H

E

Description: 1 Tank2 Cover3 Wheel base4 Tap-changer handler5 Lifting lugs6 Oil drain valve7 HV bushing8 LV bushing9 Filling plug10 Oil level indicator11 Safety valve12 Earthing terminal13 Rating plate


Technical data

HV[kV]

Uk[%]

Power[kVA]

NLL[W]

LL(75°C)

[W]

lossescomb.

Lappr.[mm]

Wappr.[mm]

Happr.[mm]

oil weightappr. [kg]

total weight

appr. [kg]

LWA[dB(A)]

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): 520mm Wheel diameter: (E): 125mm Wheel width: 40mm

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



Technical data

HV[kV]

Uk[%]

Power[kVA]

NLL[W]

LL(75°C)

[W]

lossescomb.

Lappr.[mm]

Wappr.[mm]

Happr.[mm]

oil weightappr.

[kg]

total weight

appr.[kg]

LWA[dB(A)]

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



HV[kV]

Uk[%]

Power[kVA]

NLL[W]

LL(75°C)

[W]

lossescomb.

Lappr.[mm]

Wappr.[mm]

Happr.[mm]

oil weightappr.

[kg]

total weight

appr.[kg]

LWA[dB(A)]

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


Technical data

Above data are only examples to give an overview of possible standard transformers.

Transformers can be optimized with respect to capitalised losses for optimization of Total Cost of Ownership (TCO).


Distribution transformers offered by ABBLiquid 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,– Windmills,– Autotransformers,– Grounding/Earthing Transformers,– Neutral Earthing Reactors,– Current Limiting Reactors,– Arc Furnace,– Booster Transformers.

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 from www.abb.com/transformers.

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Contact us

ABB Sp. z o.o. Branch in Lodz67/93 Aleksandrowska Str.91-205 Lodz, PolandPhone: +48 42 29 93 000Fax: +48 42 29 93 232

www.abb.com/transformers

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 contained therein. Any reproduction

– in whole or in parts – is forbidden without ABB’s prior

written consent.

© Copyright 2010 ABB

All rights reserved.

abb ground mounded tr

Documents

standard transformers

sealed transformers

manufacturing transformers

nd abb transformers

dry type transformers

standard solutions

oil volume

oil conservator