EN 60076-2:1997

Power transformers - Part 2: Temperature rise

Includes clauses on identification according to cooling method, temperature-rise limits and type tests of temperature rise.

Leistungstransformatoren - Teil 2: Übertemperaturen

Transformateurs de puissance - Partie 2: Echauffement

Comprend des articles sur la désignation suivant le mode de refroidissement, sur les limites d'échauffement, ainsi que les essais de type portant sur l'échauffement.

Power transformers - Part 2: Temperature rise (IEC 76-2:1993 modified)

General Information

• Status: Withdrawn
• Publication Date: 27-May-1997
• Withdrawal Date: 31-Aug-1997
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: CLC/TC 14 - Power transformers
• Drafting Committee: IEC/TC 14 - IEC_TC_14
• Parallel Committee: IEC/TC 14 - IEC_TC_14
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 30-Mar-2014
• Completion Date: 30-Mar-2014
• Ref Project: SIST EN 60076-2:1997 - Power transformers -- Part 2: Temperature rise

Relations

• Replaced By: EN 60076-2:2011 - Power transformers - Part 2: Temperature rise for liquid-immersed transformers
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60076-2:1997
01-oktober-1997
Power transformers - Part 2: Temperature rise (IEC 76-2:1993 modified)
Power transformers -- Part 2: Temperature rise
Leistungstransformatoren -- Teil 2: Übertemperaturen
Transformateurs de puissance -- Partie 2: Echauffement
Ta slovenski standard je istoveten z: EN 60076-2:1997
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
SIST EN 60076-2:1997 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60076-2:1997

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SIST EN 60076-2:1997

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SIST EN 60076-2:1997

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SIST EN 60076-2:1997

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SIST EN 60076-2:1997

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SIST EN 60076-2:1997


INTERNATIONAL IEC


STANDARD 60076-2





Second edition
1993-04


Power transformers –
Part 2:
Temperature rise


 IEC 1993 Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical,
including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
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Commission Electrotechnique Internationale
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МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

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SIST EN 60076-2:1997
I

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SIST EN 60076-2:1997
76-2 © I EC: 1993 – 3 –
CONTENTS
Page
FOREWORD 5
Clause
1 Scope 7
2 Normative references 7
3 Identification symbols according to cooling method 7
4 Temperature-rise limits 11
4.1 General 11
4.2 Normal temperature-rise limits at continuous rated power 11
4.3 Modified requirements because of unusual service conditions 15
4.4 Temperature rise during a specified load cycle 17
5 Test of temperature rise 17
5.1 General 17
5.2 Test methods for temperature-rise determination 19
5.3 Determination of oil temperatures 25
5.4 Determination of average winding temperature 27
5.5 Determination of winding temperature before shutdown 29
5.6 Corrections 29
Annexes
A Note on oil temperature in transformers with forced oil circulation 31
B Transient loading – Mathematical model and testing 35
C Techniques used in temperature-rise testing of oil-immersed
transformers 43

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SIST EN 60076-2:1997
76-2 © IEC: 1993 - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
POWER TRANSFORMERS
Part 2: Temperature rise
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization
comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to
promote international cooperation on all questions concerning standardization in the electrical and
electronic 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 in
the subject dealt with may participate in this preparatory work. International, governmental and
non-governmental organizations liaising with the IEC also participate in this preparation. The IEC
collaborates closely with the International Organization for Standardization (ISO) in accordance with
conditions determined by agreement between the two organizations.
2)
The formal decisions or agreements of the IEC on technical matters, prepared by technical committees on
which all the National Committees having a special interest therein are represented, express, as nearly as
possible, an international consensus of opinion on the subjects dealt with.
3)
They have the form of recommendations for international use published in the form of standards, technical
reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
This part of International Standard IEC 76 has been prepared by IEC technical committee
14: Power transformers.
This second edition cancels and replaces the first edition published in 1976.
The text of this standard is based on the following documents:
Six Months' Rule Report
...