IEC 60214-1:2014

Tap-changers - Part 1: Performance requirements and test methods

IEC 60214-1:2014 applies to on-load tap-changers of both resistor and reactor types, de-energized tap-changers, and their motor-drive mechanisms. It applies mainly to tap-changers immersed in mineral insulating oil according to IEC 60296 but may also be used for tap-changers with air or gas insulation or immersed in other insulating liquids insofar as conditions are applicable. It applies mainly to tap-changers with arcing contacts but may also be used for arcing-free on-load tap-changers (such as electronic switching) insofar as conditions are applicable. This part of IEC 60214 applies to power and distribution transformers of all types and also to reactors. It does not apply to transformers and reactors mounted on railway rolling stock. This second edition cancels and replaces the first edition published in 2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) incorporation of requirements on vacuum type on-load tap-changers,
b) incorporation of requirements on gas insulated tap-changers,
c) changes in the type tests to fit with the service conditions,
d) reference to the newest edition of IEC 60076-3:2013.

Changeurs de prises - Partie 1: Exigences de performances et méthodes d'essai

L'IEC 60214-1:2014 s'applique aux changeurs de prises en charge aussi bien de type à résistance qu'à bobine d'inductance, aux changeurs de prises non alimentés et à leurs mécanismes d'entraînement à moteur. Elle s'applique essentiellement aux changeurs de prises immergés dans de l'huile minérale isolante selon l'IEC 60296, mais elle peut également être utilisée pour des changeurs de prises à isolation gazeuse ou dans l'air, ou immergés dans d'autres liquides isolants, dans la mesure où les conditions sont applicables. Elle s'applique essentiellement aux changeurs de prises avec contacts d'arc, mais peut également être utilisée pour les changeurs de prises en charge sans arc (tels que les changeurs à coupure électronique), dans la mesure où les conditions sont applicables. La présente partie de l'IEC 60214 s'applique à tous les types de transformateurs pour applications de puissance et de distribution et également aux bobines d'inductance. Elle ne s'applique pas aux transformateurs et bobines d'inductance montés sur matériel roulant ferroviaire. Cette deuxième édition de l'IEC 60214-1 annule et remplace la première édition parue en 2003. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) intégration des exigences concernant les changeurs de prises en charge de type à vide,
b) intégration des exigences concernant les changeurs de prises à isolation gazeuse,
c) changements portant sur les essais de type afin de répondre aux conditions de service,
d) référence à la nouvelle édition de l'IEC 60076-3:2013.

General Information

• Status: Published
• Publication Date: 21-May-2014
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 01.040.29 - Electrical engineering (Vocabularies)
• ICS: 29.020 - Electrical engineering in general
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: TC 14 - Power transformers
• Current Stage: PPUB - Publication issued
• Start Date: 31-May-2014
• Completion Date: 22-May-2014

Relations

• Revises: IEC 60214-1:2003 - Tap-changers - Part 1: Performance requirements and test methods
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60214-1 ®
Edition 2.0 2014-05
INTERNATIONAL
STANDARD
colour
inside
Tap-changers –
Part 1: Performance requirements and test methods

All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

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IEC 60214-1 ®
Edition 2.0 2014-05
INTERNATIONAL
STANDARD
colour
inside
Tap-changers –
Part 1: Performance requirements and test methods

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XC
ICS 29.180 ISBN 978-2-8322-1621-7

– 2 – IEC 60214-1:2014 © IEC:2014
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Service conditions . 15
4.1 Temperature of tap-changer environment . 15
4.2 Temperature of motor-drive mechanism environment . 16
4.3 Overload conditions . 16
5 Requirements for on-load tap-changers . 16
5.1 General requirements . 16
5.1.1 Rating . 16
5.1.2 Compartments for diverter and selector switches . 17
5.1.3 Liquid-level gauges and gas monitoring devices . 17
5.1.4 Safety requirements for protection against internal failure. 17
5.1.5 Limiting devices for the protection against transient overvoltages . 18
5.1.6 Change-over selector recovery voltages . 18
5.1.7 Leakage inductance in coarse fine regulation arrangements . 18
5.2 Type tests . 18
5.2.1 General . 18
5.2.2 Temperature rise of contacts . 19
5.2.3 Switching tests . 20
5.2.4 Short-circuit current test . 25
5.2.5 Transition impedance test . 26
5.2.6 Mechanical tests . 27
5.2.7 Tightness test . 29
5.2.8 Dielectric tests . 30
5.2.9 Type-test certificate . 35
5.3 Routine tests . 35
5.3.1 General . 35
5.3.2 Mechanical test . 35
5.3.3 Sequence test . 35
5.3.4 Auxiliary circuits insulation test . 35
5.3.5 Pressure and vacuum tests . 35
6 Requirements for motor-drive mechanisms for on-load tap-changers . 35
6.1 General requirements . 35
6.1.1 Compliance of component parts . 35
6.1.2 Permissible variation of auxiliary supply . 36
6.1.3 Step-by-step control . 36
6.1.4 Tap position indicator . 36
6.1.5 Tap-change in progress indication . 36
6.1.6 Limiting devices . 36
6.1.7 Parallel control devices . 36
6.1.8 Direction of rotation protection . 36
6.1.9 Overcurrent blocking device . 36
6.1.10 Restarting device . 37
6.1.11 Operation counter . 37

6.1.12 Manual operation of the motor-drive mechanism . 37
6.1.13 Motor-drive cubicle . 37
6.1.14 Protective device against running-through . 37
6.1.15 Protection against access to hazardous parts . 37
6.2 Type tests . 37
6.2.1 Mechanical load test . 37
6.2.2 Overrun test . 38
6.2.3 Degree of protection of motor-drive cubicle. 38
6.3 Routine tests . 38
6.3.1 Mechanical tests . 38
6.3.2 Auxiliary circuits insulation test . 38
7 Requirements for de-energized tap-changers . 38
7.1 General requirements . 38
7.1.1 Rated characteristics . 38
7.1.2 Types . 39
7.1.3 Handles and drives . 39
7.1.4 Glands . 39
7.1.5 Interlocks . 39
7.1.6 Mechanical end stops . 39
7.2 Type tests . 40
7.2.1 General . 40
7.2.2 Temperature rise of contacts . 40
7.2.3 Short-circuit current test . 41
7.2.4 Mechanical tests . 41
7.2.5 Dielectric tests . 42
7.2.6 Type test certificate . 47
7.3 Routine tests . 47
7.3.1 Mechanical tests . 47
7.3.2 Pressure and vacuum tests . 47
8 Requirements for motor-drive mechanisms for de-energized tap-changers . 47
8.1 General requirements . 47
8.1.1 General . 47
8.1.2 Compliance of component parts . 47
8.1.3 Permissible variation of auxiliary supply . 47
8.1.4 Tap position indicator . 47
8.1.5 Limiting devices . 48
8.1.6 Operation counter . 48
8.1.7 Manual operation of the motor-drive mechanism . 48
8.1.8 Motor-drive cubicle . 48
8.1.9 Protection against access to hazardous parts . 48
8.2 Type tests . 48
8.2.1 Mechanical load test . 48
8.2.2 Overrun test . 49
8.2.3 Degree of protection of motor-drive cubicle. 49
8.3 Routine tests . 49
8.3.1 Mechanical tests . 49
8.3.2 Auxiliary circuits insulation test . 49
9 Nameplate . 49
9.1 Tap-changers (on-load and de-energized) . 49

– 4 – IEC 60214-
...

IEC 60214-1 ®
Edition 2.0 2014-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Tap-changers –
Part 1: Performance requirements and test methods

Changeurs de prises –
Partie 1: Prescriptions de performances et méthodes d’essai

All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

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IEC 60214-1 ®
Edition 2.0 2014-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Tap-changers –
Part 1: Performance requirements and test methods

Changeurs de prises –
Partie 1: Prescriptions de performances et méthodes d’essai

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XC
ICS 29.180 ISBN 978-2-8322-1988-1

– 2 – IEC 60214-1:2014 © IEC 2014
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Service conditions . 15
4.1 Temperature of tap-changer environment . 15
4.2 Temperature of motor-drive mechanism environment . 16
4.3 Overload conditions . 16
5 Requirements for on-load tap-changers . 16
5.1 General requirements . 16
5.1.1 Rating . 16
5.1.2 Compartments for diverter and selector switches . 17
5.1.3 Liquid-level gauges and gas monitoring devices . 17
5.1.4 Safety requirements for protection against internal failure. 17
5.1.5 Limiting devices for the protection against transient overvoltages . 18
5.1.6 Change-over selector recovery voltages . 18
5.1.7 Leakage inductance in coarse fine regulation arrangements . 18
5.2 Type tests . 18
5.2.1 General . 18
5.2.2 Temperature rise of contacts . 19
5.2.3 Switching tests . 20
5.2.4 Short-circuit current test . 25
5.2.5 Transition impedance test . 26
5.2.6 Mechanical tests . 27
5.2.7 Tightness test . 29
5.2.8 Dielectric tests . 30
5.2.9 Type-test certificate . 35
5.3 Routine tests . 35
5.3.1 General . 35
5.3.2 Mechanical test . 35
5.3.3 Sequence test . 35
5.3.4 Auxiliary circuits insulation test . 35
5.3.5 Pressure and vacuum tests . 35
6 Requirements for motor-drive mechanisms for on-load tap-changers . 35
6.1 General requirements . 35
6.1.1 Compliance of component parts . 35
6.1.2 Permissible variation of auxiliary supply . 36
6.1.3 Step-by-step control . 36
6.1.4 Tap position indicator . 36
6.1.5 Tap-change in progress indication . 36
6.1.6 Limiting devices . 36
6.1.7 Parallel control devices . 36
6.1.8 Direction of rotation protection . 36
6.1.9 Overcurrent blocking device . 36
6.1.10 Restarting device . 37
6.1.11 Operation counter . 37

6.1.12 Manual operation of the motor-drive mechanism . 37
6.1.13 Motor-drive cubicle . 37
6.1.14 Protective device against running-through . 37
6.1.15 Protection against access to hazardous parts . 37
6.2 Type tests . 37
6.2.1 Mechanical load test . 37
6.2.2 Overrun test . 38
6.2.3 Degree of protection of motor-drive cubicle. 38
6.3 Routine tests . 38
6.3.1 Mechanical tests . 38
6.3.2 Auxiliary circuits insulation test . 38
7 Requirements for de-energized tap-changers . 38
7.1 General requirements . 38
7.1.1 Rated characteristics . 38
7.1.2 Types . 39
7.1.3 Handles and drives . 39
7.1.4 Glands . 39
7.1.5 Interlocks . 39
7.1.6 Mechanical end stops . 39
7.2 Type tests . 40
7.2.1 General . 40
7.2.2 Temperature rise of contacts . 40
7.2.3 Short-circuit current test . 41
7.2.4 Mechanical t
...