General ABB Specification For HiDry Power Transformers
BU TRANSFORMERS"Dry-type Power Transformers"Issued and approved byDate of release:PGTR PG Dry2016-11-11Author:1LES100088-ZBRev.: ALanguage:enPage:1/ 44ReplacesM. BerrogaínGeneral ABB specification for HiDry Power TransformersTable of Contents1SCOPE . 42GENERAL. 42.12.22.33SERVICE CONDITIONS . 53.13.23.33.44Reference laws, standards and codes . 4Laws. 4International standards . 4General . 5Standard conditions. 5Seismic qualification levels . 6Installation . 6TECHNICAL ASPECTS . 64.14.24.34.44.54.6Types of transformers . 6Number of windings. 6Number of phases . 6Cooling system. 7Rated power . 7Temperature – Rise limit . 74.6.14.6.24.7Rated voltages . 84.7.14.7.24.84.95Off-load circuit tappings. 9On-load circuit tappings. 9Insulation levels and minimum air clearances. igh Voltages . 8Medium/Low Voltages . 8Rated frequency . 8High voltage tappings . 94.9.14.9.24.10Transformers designed for high cooling medium temperatures . 8Transformers designed for operation at altitudes greater than 1000 m . 8Bushings . 10HV and MV neutral . 10Losses and short circuit impedances . 10Over-excitation conditions . 11No load current. 11Inrush current . 12Over temperature of the core. 12Capability of withstand short-circuit . 12Sound levels. 12Overall dimensions . 12Climatic, environmental and fire behavior classes . 13DESIGN REQUIREMENTS . 13 Copyright 2016ABB. All right reserved.Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
General ABB specification for HiDryPower Transformers5.16HV and LV windings assembly . 15High / Medium Voltage connections . 16Low Voltage connections . 16Epoxy resin insulation . 16ACCESSORIES AND AUXILIARIES . 166.1Temperature monitoring . ng lugs and pulling Points . 13Core earthing . 13Wheels and wheel frame . 14Core assembly . 14Windings connections . 165.3.15.3.25.42/ 44Windings . 155.2.15.3Rev.:APage:Core and frame . 135.1.15.1.25.1.35.1.45.21LES100088-ZBWindings . 16Core. 17Fans . 17Rating plates . 17Terminal markings . 18Warning plates . 18Lifting devices . 18Wheels . 18Grounding terminals . 19Protections . 19Security devices . 19Marshalling boxes . 19MAIN COMPONENTS. 207.17.2Terminal connections . 20On-load tap changer (OLTC) . 217.2.17.2.27.2.37.3Ratings . 21Design Requirements. 21Tests. 22Enclosures . 237.3.17.3.27.3.3Standard enclosure for indoors. 23Standard enclosure for outdoors . 29Insulators / wall-bushings for outdoors. 338PROTECTIVE PAINTING . 339TESTS . 369.1List and classification of tests . 369.1.19.1.29.1.39.1.49.1.59.2Test description . 389.2.19.2.29.2.39.3Routine tests . 36Type tests . 36Special tests . 36Inspection at factory . 37General statements for the tests. 37Routine tests . 38Type tests . 39Special tests . 40Commissioning . 40 Copyright 2016 ABB. All right reserved.Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
General ABB specification for HiDryPower Transformers9.3.110Rev.:APage:3/ 44Test on field . 40SUPPLY REQUIREMENTS . 4110.110.210.3Transport and storage . 41Package . 41Documentation . 4210.3.110.3.21111.1121LES100088-ZBDocumentation for the offer . 42Documentation for homologation, certification and approval . 42FIGURES. 43Layout diagrams. 43REVISION . 44 Copyright 2016 ABB. All right reserved.Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
General ABB specification for HiDryPower Transformers11LES100088-ZBRev.:APage:4/ 44ScopeThe scope of this document is to provide technical requirements for the supply of the dry-typelarge power transformers to be used in the distribution networks / sub-transmission lines andgeneration.2General2.1 Reference laws, standards and codesThe lists of some reference laws and standards, relevant for this document, are reported herebelow.The equipment will be designed, manufactured and tested in compliance with the IEC,CENELEC, ISO, IEEE, codes and standards and the following codes and standards in particularshown latter.Preference of codes and standards:In case of conflict between this specification and any of the referenced codes and standards,the following order of preference shall apply: This specificationReferenced codes and standardsAcceptable alternative codes and standards2.2 LawsFor the European countries, the performance efficiency of the transformers shall comply withthe related European Commission Regulation (EU) No 548/2014 on Implementing Directive2009/125/C regarding small, medium and large power transformers (in force from July 2015).For other countries, national laws will have to be into consideration. For instance in Spain will beas follows: REAL DECRETO 614/2001, de 8 de junio, sobre disposiciones mínimas para la protección de lasalud y seguridad de los trabajadores frente al riesgo eléctrico.Reglamento Sobre Condiciones Técnicas y Garantías De Seguridad en Centrales Eléctricas,Subestaciones y Centros De Transformación.Council Directive 67/548/EEC on the approximation of the laws, regulations and administrativeprovisions relating to the classification, packaging and labelling of dangerous substances.Council Directive 1999/13/EC, of 11 March 1999, on the limitation of emissions of volatile organiccompounds due to the use of organic solvents in certain activities and installations.2.3 International standardsFor America destinations the reference standard are the IEC/IEEE/ISO and for Europedestinations the reference standard are the correspondent European standards (EN).EN 50629Energy performance of large power transformers (Um 36 kV or Sr 40MVA) Copyright 2016 ABB. All right reserved.Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
General ABB specification for HiDryPower Transformers1LES100088-ZBRev.:APage:5/ 44IEC 60076-1IEC 60076-2Power transformers – Part 1: GeneralPower transformers – Part 2: Temperature riseIEC 60076-3Power transformers – Part 3: Insulation levels, dielectric tests and externalclearances in airIEC 60076-5Power transformers – Part 5: Ability to withstand short circuitIEC 60076-10Determination of sound levelsIEC 60076-11Power transformers – Part 11: Dry-type transformersIEC 60076-12Power transformers – Part 12: Loading guide for dry-type powertransformersPower transformers – Part 18: Measurement of frequency responseIEC 60076-18IEC 60068-3-3IEC 60085IEC 60214-1Environmental testing - Part 3-3: Guidance - Seismic test methods forequipmentThermal evaluation and classification of electrical insulationTap-Changers – Part 1: Performance requirements and test methodsIEC 60214-2Tap-Changers – Part 2: Application guideIEC 60529Degree of protections provided by enclosures (IP Code)ISO 12944Paints and varnishes – Corrosion protection of steel structures by protectivepaint systemsAnd all the standards referred in those listed above.When the date of issue is not mentioned in the list above, the date to be taken as reference isthat of the standard in force when the present document has been issued.3Service conditions3.1 GeneralUnless otherwise specified the normal service conditions of Clause 4 of IEC 60076-11 apply.Transformers are generally used for step-down voltage purpose but they can also be used asstep-up. In the network, they could occasionally be subjected to frequent energizations, overvoltages and short-circuits.3.2 Standard conditionsStandard service conditions are as follows: Altitude: Maximum 1000 meters above sea level (it must prevail the buyer s site conditions).Maximum ambient temperature: Never over 40º C and never below - 5º C (it must prevail thebuyer s site conditions).In addition, an ambient air temperature never exceeding: 30ºC average in any one day (it must prevail the buyer s site conditions).20ºC average in any one year (it must prevail the buyer s site conditions). Copyright 2016 ABB. All right reserved.Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
General ABB specification for HiDryPower Transformers1LES100088-ZBRev.:APage:6/ 44(Note: other environmental conditions under customer request may be accepted).3.3 Seismic qualification levelsThe seismic qualification level must be in accordance with the final site installation.As default, all designs shall be prepared in order to withstand zones 1, 2A and 2B, it means: Seismic horizontal acceleration: 0,2 gSeismic vertical acceleration: 0,1 gFor other higher seismic demands (i.e. zone 3, 4, u others) the Manufacturer may produce areport to demonstrate the seismic qualification level if required.3.4 InstallationThe type of installation will be preferably indoor.In case customer requires an outdoors installation, the transformer needs to be protectedmechanically with a metal or civil housing, in order to guarantee the IP degree depending on theenvironmental conditions.4Technical aspectsThe transformer shall be designed so that they can deliver continuously its rated current understeady loading conditions without exceeding the temperature rise, assuming that the appliedvoltage is equal to the rated voltage and that the supply is at rated frequency.For the definitions IEC 60076-11 applies.4.1 Types of transformersThis document is applicable for dry-type large power three phase transformers, step-up (forGSU) or step-down and refers from the following type: separate windings transformer (TR).Separate windings transformers are usually HV/LV, but they can also be HV/HV or MV/MV, insuch cases they are conventionally indicated as HV/MV in the present standard.Autotransformers or single-phase transformers can be also considered under customer request.4.2 Number of windingsNumber of windings should be preferably two (2).Tertiary winding can be considered under customer request4.3 Number of phasesNumber of phases should be preferably three (3).Also one-phase transformers are available (1) Copyright 2016 ABB. All right reserved.Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
General ABB specification for HiDryPower Transformers1LES100088-ZBRev.:APage:7/ 444.4 Cooling systemCooling system for dry-type large power transformers shall be natural air ventilation (AN) up tospecified rating or/and with forced cooling (AF) to a higher rating.Other cooling systems can be considered under customer request.4.5 Rated powerRated power should be preferably 1 MVA, 2 MVA, 5 MVA, 10 MVA, 12.5 MVA, 16 MVA, 20MVA, 25 MVA, 30 MVA, 40 MVA and 63 MVA.Other ratings can be also considered.4.6 Temperature – Rise limitThe temperature rise of each winding of the transformer, designed for operation at normalservice conditions, shall not exceed the corresponding limit specified in the Table 1 when testedin accordance with Clause 23 of IEC 60076-11.Table 1Average winding temperature riselimits at rated current(see Note 2) K180 (H)125NOTE 1 Letters refer to the temperature classifications given in IEC 60085.NOTE 2 Temperature rise measured in accordance with Clause 23 of IEC 60076-11.Insulation system temperature(see Note 1) CThe temperature rise of the winding is defined as the average temperature of the winding minusyearly average of the temperature of the external cooling medium.The maximum temperature occurring in any part of the winding insulation system is called thehot-spot temperature. The hot spot temperature shall not exceed the rated value of the hotspotwinding temperature specified in the Table 2.Insulation systemTemperature C180 (H)Table 2Rated hot spot windingTemperature ºC170Maximum hot-spot windingTemperature ºC205Components used as insulating material may be used separately or in combination providingthat their temperature does not exceed the values given for the appropriate insulation systemtemperature in accordance with the requirements as prescribed in the left hand column of Table2.The temperature of the core, metallic parts and adjacent materials shall not reach a value thatwill cause damage to any part of the transformer. Copyright 2016 ABB. All right reserved.Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
General ABB specification for HiDryPower Transformers4.6.11LES100088-ZBRev.:APage:8/ 44Transformers designed for high cooling medium temperaturesDuring continuous service at the rated frequency and rated power, at any of the taps, foroperation with AN cooling or AF cooling, the allowed heating will be the following:For 40ºC ambient temperature: Rated average winding heatingRated heating of hottest winding point:125K150KIn areas with special temperatures (50ºC): Rated average winding heatingRated heating of hottest winding point:115K140KThe resulting maximum absolute temperature being (on both cases): For the windingsFor the hottest winding point4.6.2165ºC190ºCTransformers designed for operation at altitudes greater than 1000 mAccording to IEC 60076-11 section 11.3, for transformers designed for operation at an altitudegreater than 1,000 m but tested at normal altitudes, the limits of temperature rise given in Table1 shall be reduced by the following amounts for each 500 m by which the intended workingaltitude exceeds 1 000 m: Natural-air-cooled transformers: 2,5 %Forced-air-cooled transformers: 5 %Any altitude correction shall be rounded to the nearest whole number of K.4.74.7.1Rated voltagesHigh VoltagesNominal rated voltages will be depending on each installation, with BIL according to table 3.4.7.2Medium/Low VoltagesNominal rated voltages will be depending on each installation, with BIL according to table 3.When requested, the parameters for double voltage connection (i.e. 20-10 kV) or delta/starconnection shall be indicated in data-sheets.4.8 Rated frequencyThe rated frequency shall be 50 or 60 Hz. Copyright 2016 ABB. All right reserved.Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
General ABB specification for HiDryPower Transformers4.91LES100088-ZBRev.:APage:9/ 44High voltage tappings4.9.1Off-load circuit tappingsIn this case, the transformer shall be provided with tapping links on the HV windings. Theirposition can be selected whilst the transformer is off circuit. Taping selection shall be by meansof bolted links. The standard tapping range shall be: Plus 2.5% and 5%Minus 2.5% and 5%Other combinations (number of steps as well as their magnitude) can be consideredDepending on the case, tappings with connection cables could be accepted.4.9.2On-load circuit tappingsIn case this is required, the transformer shall be provided with tapping links on the HV windingsThe high voltage windings will be provided with a device for changing the tappings. Thefollowing types are preferred:OLTC: On-load tap-changer: Voltage tappings 8x1.25% -8x1.25%OLTC: On-load tap-changer: Voltage tappings 8x1% -8x1%The OLTC will be based on oil-free technology (vacuum contacts), and with a proper linearconfiguration to be interconnected with the HV windings.When required, it will be provided, with so many tappings as needed, with a maximum by 17positions, and covering a minimum ( 10%) tapping range, and with at least the followinglimitations: Max voltage step 900 VMax current 500 AIt will be ready for a maintenance after at least 100000 operations.The OLTC must be ready for indoors application, however, it could be also considered foroutdoors, in an appropriate enclosure degree.The OLTC will be interconnected to the windings tappings point, by using insulated cable.4.10 Insulation levels and minimum air clearancesThe insulation levels and the corresponding minimum air clearances to assure electricalprotection shall be those given in Table 3Table 3Ratedvoltage Ur(r.m.s.)(kV)Highestvoltage forequipment Um(r.m.s.) (kV)Rated short durationseparate source ACwithstand voltage(r.m.s.) (kV)Rated lightningimpulse withstandvoltage(peak value) (kV)Minimum airclearances.Line to earthPhase to phase (mm) 24 36 52 er insulation levels could be required based on international standards (ANSI / IEEE). Copyright 2016 ABB. All right reserved.Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
General ABB specification for HiDryPower Transformers1LES100088-ZBRev.:APage:10/ 444.10.1 BushingsDry-type large power transformers can be installed on indoor or outdoor locations. For indoor locations the HV and MV connections will be done directly through flexible outdoor cableterminations.For outdoor locations, if the connections are done with HV/MV cable, flexible outdoor cableterminations must be used.In the case the connections to the network are done by aerial cables, the use of wall bushingoutdoor-outdoor will be installed in the top of the enclosure. These air to air bushings will haveenough creepage distance according to the insulation class level.4.10.2 HV and MV neutralWindings with Star (Y) connection will have their neutral point accessible. The neutralconnection shall be capable of carrying full phase rated current.The connection to ground of the neutral point shall be defined in the data-sheets.4.11 Losses and short circuit impedancesThe impedance values of the transformer shall refer to the temperature defined in Table 4(based on IEC 60076-11 Clause 17) to the base power indicated respectively. The loss valuesshall refer to the same temperature as the impedance values.Table 4Insulation system temperature ( C)180 (H)Reference temperature (ºC)145a) Short circuit impedances shall be given in the data-sheets.b) Losses can be prescribed by giving maximum values, peak efficiency index and/or capitalized values.For the European distribution companies the EU Directive related to the efficiency of thetransformer and the relevant losses shall be fulfilled.-When maximum losses values are prescribed, they are given in data-sheets.When peak efficiency index are prescribed, the minimum values defined in the EuropeanCommission Regulation (EU) No 548/2014 and standardized in EN 50629 the must be used. Copyright 2016 ABB. All right reserved.Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
General ABB specification for HiDryPower TransformersSr (MVA) 456,381012,516202531,54050 63Table 5PEI(%) from jul APage:11/ 44PEI(%) from jul 1399,56499,89299,60799,62399,626Losses exceeding the prescribed values and/or declared by the manufacturer can be penalized.-When the capitalization of losses applies, the related capitalization factors must be specified in theoffer request. The capitalization of losses is given by:Cc C A Pv B PjWhere: Cc is the capitalized cost of the transformer (expressed in local currency)C is the cost declared by the manufacturer in the offer (expressed in local currency)A is the no-load loss factor (expressed in local currency per kW); B is the load loss factor(expressed in local currency per kW)Pv is the no-load loss declared by the manufacturer (expressed in kW) Pj is the load lossdeclared by the Manufacturer (expressed in kW)4.12 Over-excitation conditionsIn compliance with IEC 60076-1.The transformer shall be able to operate at no-load with a magnetic flux in the core increased bythe 5% of the nominal magnetic flux (therefore, the prescriptions relevant to the off-load currentand the over-temperature of the core shall take into account such an over-excitation condition).When required other over-excitation conditions, this must be taken into consideration by themanufacturer.4.13 No load currentThis value depends quite a lot from transformer size. Copyright 2016 ABB. All right reserved.Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
General ABB specification for HiDryPower Transformers1LES100088-ZBRev.:APage:12/ 44For big ratings (i.e. 20 MVA) the no-load current at the rated voltage shall be 0,5 % of therated current.For smaller ratings (i.e. 2 MVA) the above values can be
IEC 60076-1 Power transformers – Part 1: General IEC 60076-2 Power transformers – Part 2: Temperature rise IEC 60076-3 Power transformers – Part 3: Insulation levels, dielectric tests and external clearances in air IEC 60076-5 Power transformers – Part 5: Ability to withstand short circuit
Bruksanvisning för bilstereo . Bruksanvisning for bilstereo . Instrukcja obsługi samochodowego odtwarzacza stereo . Operating Instructions for Car Stereo . 610-104 . SV . Bruksanvisning i original
ABB Control SECRL - 1 2001-06-19 A New Contactor Range from ABB New Generation ABB Contactors. ABB Control SECRL - 2 2001-06-19 The ABB range of A The ABB range of A contactorscontactors A 9, A 12, A 16 A 26, A 30, A 40 A 50, A 63, A 75 A 95, A
10 tips och tricks för att lyckas med ert sap-projekt 20 SAPSANYTT 2/2015 De flesta projektledare känner säkert till Cobb’s paradox. Martin Cobb verkade som CIO för sekretariatet för Treasury Board of Canada 1995 då han ställde frågan
service i Norge och Finland drivs inom ramen för ett enskilt företag (NRK. 1 och Yleisradio), fin ns det i Sverige tre: Ett för tv (Sveriges Television , SVT ), ett för radio (Sveriges Radio , SR ) och ett för utbildnings program (Sveriges Utbildningsradio, UR, vilket till följd av sin begränsade storlek inte återfinns bland de 25 största
Hotell För hotell anges de tre klasserna A/B, C och D. Det betyder att den "normala" standarden C är acceptabel men att motiven för en högre standard är starka. Ljudklass C motsvarar de tidigare normkraven för hotell, ljudklass A/B motsvarar kraven för moderna hotell med hög standard och ljudklass D kan användas vid
LÄS NOGGRANT FÖLJANDE VILLKOR FÖR APPLE DEVELOPER PROGRAM LICENCE . Apple Developer Program License Agreement Syfte Du vill använda Apple-mjukvara (enligt definitionen nedan) för att utveckla en eller flera Applikationer (enligt definitionen nedan) för Apple-märkta produkter. . Applikationer som utvecklas för iOS-produkter, Apple .
ABB - global market and technology leader in AC drives ABB (www.abb.com) is a leader in power and automation technologies that enable utility and industry customers to improve their performance while lowering environmental impact. ABB is the world's largest drives manufacturer. The ABB Group of companies operates in around 100 countries
Automotive EMC Standards SAE J551-16 Vehicle Immunity Tests: SAE J551-17 ISO 11452-8 Reverberation Chamber Immunity Power Line Disturbances Magnetic Field Immunity August 18, 2008 13
