Power transformers - Part 1: General

Applies to three-phase and single-phase transformers including autotransformers. Defines the rating and connection symbols. Gives certain specifications for transformers having a tapped winding. Defines information which shall be marked on the rating plate and the tests to be conducted.

Leistungstransformatoren - Teil 1: Allgemeines

Transformateurs de puissance - Partie 1: Généralités

S'applique aux transformateurs triphasés et monophasés y compris aux autotransformateurs. Définit le régime assigné et les symboles de couplage. Donne certaines prescriptions pour les transformateurs avec enroulement à prise. Définit les informations qui doivent figurer sur la plaque signalétique et les essais à effectuer.

Power transformers - Part 1: General (IEC 76-1:1993 modified)

General Information

Status
Withdrawn
Publication Date
27-May-1997
Withdrawal Date
31-Aug-1997
Technical Committee
Drafting Committee
Parallel Committee
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
25-May-2014
Completion Date
25-May-2014

Relations

Effective Date
28-Jan-2023

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Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Power transformers - Part 1: General (IEC 76-1:1993 modified)Leistungstransformatoren -- Teil 1: AllgemeinesTransformateurs de puissance -- Partie 1: GénéralitésPower transformers -- Part 1: General29.180Transformatorji. DušilkeTransformers. ReactorsICS:Ta slovenski standard je istoveten z:EN 60076-1:1997SIST EN 60076-1:1997en01-oktober-1997SIST EN 60076-1:1997SLOVENSKI
STANDARD



SIST EN 60076-1:1997



SIST EN 60076-1:1997



SIST EN 60076-1:1997



SIST EN 60076-1:1997



SIST EN 60076-1:1997



SIST EN 60076-1:1997



SIST EN 60076-1:1997



NORMEINTERNATIONALEINTERNATIONALSTANDARDCEIIEC76-1Deuxième éditionSecond edition1993-03Transformateurs de puissancePartie 1:GénéralitésPower transformersPart 1:General© CEI 1993 Droits de reproduction réservés — Copyright — all rights reservedAucune partie de cette publication ne peut être reproduite niutilisée sous quelque forme que ce soit et par aucun pro-cédé, électronique ou mécanique, y compris la photocopie etles microfilms, sans l'accord écrit de l'éditeur.No part of this publication may be reproduced or utilized inany form or by any means, electronic or mechanical,including photocopying and microfilm, without permissionin writing from the publisher.Bureau Central de la Commission Electrotechnique Internationale 3, rue de Varembé Genève, SuisseIEC•Commission Electrotechnique Internationale CODE PRIX^/International Electrotechnical Commission PRICE CODE/^Mew,ayHapoaHan 3nettrpoTexmoiecttan HOMHCCHA• Pour prix, voir catalogue en vigueurFor price, see current catalogueSIST EN 60076-1:1997



Publication 60076-1 de la CEIIEC Publication 60076-1(Deuxième édition - 1993)(Second edition - 1993)Transformateurs de puissance —Power transformers —Partie 1: GénéralitésPart 1: GeneralCORRIGENDUM 1Page 76Page 77Article A.1.2:Clause A.1.2:Au point h), dans la première ligne, au lieu deItem h), in the first line, instead of.(voir 2.1 b)).(see 2.1 b)).lireread.(voir 1.2.1 b)).(see 1.2.1 b)).Juin 1997June 1997SIST EN 60076-1:1997



76-1 ©IEC: 1993- 3 -CONTENTSPageFOREWORD 7Clause1Scope and service conditions
111.1Scope
111.2Service conditions 112Normative references 153Definitions 173.1General 173.2 Terminals and neutral point 173.3 Windings
193.4Rating
213.5 Tappings
233.6 Losses and no-load current 273.7 Short-circuit impedance and voltage drop 273.8 Temperature rise 313.9Insulation 313.10 Connections 313.11 Kinds of tests 333.12 Meteorological data with respect to cooling
334 Rating 334.1Rated power 334.2 Loading cycle 354.3 Preferred values of rated power 354.4 Operation at higher than rated voltage and/or at disturbed frequency 355Requirements for transformers having a tapped winding 375.1General - Notation of tapping range 375.2 Tapping voltage - tapping current. Standard categories of tapping voltagevariation. Maximum voltage tapping 375.3 Tapping power. Full-power tappings - reduced-power tappings 435.4Specification of tappings in enquiry and order 455.5Specification of short-circuit impedance 455.6 Load loss and temperature rise
476 Connection and phase displacement symbols for three-phase transformers 49SIST EN 60076-1:1997



76-1 ©IEC: 1993– 5 –7Rating plates 537.1Information to be given in all cases 537.2Additional information to be given when applicable
558Miscellaneous requirements
578.1Dimensioning of neutral connection
578.2 Oil preservation system
578.3 Load rejection on generator transformers
579 Tolerances 5710 Tests 6310.1 General requirements for routine, type and special tests 6310.2 Measurement of winding resistance
6510.3 Measurement of voltage ratio and check of phase displacement 6710.4 Measurement of short-circuit impedance and load loss 6710.5 Measurement of no-load loss and current
6910.6 Measurement of the harmonics of the no-load current
6910.7 Measurement of zero-sequence impedance(s) onthree-phase transformers 7110.8 Tests on on-load tap-changers
71AnnexesAInformation required with enquiry and order 75BExamples of specifications for transformers with tappings
81CSpecification of short-circuit impedance by boundaries
85DThree-phase transformer connections
87ETemperature correction of load loss
93FBibliography 95SIST EN 60076-1:1997



Six Month's RuleReport on Voting14(CO)7514(CO)7776-1 © IEC: 1993- 7 -INTERNATIONAL ELECTROTECHNICAL COMMISSIONPOWER TRANSFORMERSPart 1: GeneralFOREWORD1)The IEC (International Electrotechnical Commission) is a worldwide organization for standardizationcomprising all national electrotechnical committees (IEC National Committees). The object of the IEC is topromote international cooperation on all questions concerning standardization in the electrical andelectronic fields. To this end and in addition to other activities, the IEC publishes International Standards.Their preparation is entrusted to technical committees; any IEC National Committee interested inthe subject dealt with may partici
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