IEC TR 62271-208:2009
(Main)High-voltage switchgear and controlgear - Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations
High-voltage switchgear and controlgear - Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations
IEC/TR 62271-208:2009 gives practical guidance for the evaluation and documentation of the external electromagnetic fields which are generated by HV switchgear assemblies and HV/LV prefabricated substations. Basic requirements to measure or calculate the electric and magnetic fields are summarised for switchgear assemblies covered by IEC 62271-200 and IEC 62271-201, and for prefabricated substations covered by IEC 62271-202. This technical report applies to equipment rated for voltages up to and including 52 kV and power-frequencies from 15 Hz to 60 Hz.
Appareillage à haute tension - Partie 208: Méthodes de quantification des champs électromagnétiques à fréquence industrielle en régime établi générés par les ensembles d'appareillages HT et les postes préfabriqués HT/BT
La CEI/TR 62271-208:2009 donne des conseils pratiques pour évaluer et documenter les champs électromagnétiques externes générés par des appareillages HT et des postes HT/BT préfabriqués. Les exigences de base pour mesurer ou calculer les champs électrique et magnétique sont résumées pour des appareillages couverts par la CEI 62271-200 et la CEI 62271-201 et pour les postes préfabriqués couverts par la CEI 62271-202. Ce rapport technique s'applique aux équipements assignés pour des tensions jusqu'à et y compris 52 kV et des fréquences réseau de 15 Hz à 60 Hz.
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IEC/TR 62271-208 ®
Edition 1.0 2009-10
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
High-voltage switchgear and controlgear –
Part 208: Methods to quantify the steady state, power-frequency electromagnetic
fields generated by HV switchgear assemblies and HV/LV prefabricated
substations
Appareillage à haute tension –
Partie 208: Méthodes de quantification des champs électromagnétiques à
fréquence industrielle en régime établi générés par les ensembles
d’appareillages HT et les postes préfabriqués HT/BT
IEC/TR 62271-208:2009
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.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.
IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: inmail@iec.ch
Web: 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.
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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in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
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A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.
ƒ Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm
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texte, comité d’études,…). Il donne aussi des informations sur les projets et les publications retirées ou remplacées.
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Restez informé sur les nouvelles publications de la CEI. Just Published détaille deux fois par mois les nouvelles
publications parues. Disponible en-ligne et aussi par email.
ƒ Electropedia: www.electropedia.org
Le premier dictionnaire en ligne au monde de termes électroniques et électriques. Il contient plus de 20 000 termes et
définitions en anglais et en français, ainsi que les termes équivalents dans les langues additionnelles. Egalement appelé
Vocabulaire Electrotechnique International en ligne.
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Service clients ou contactez-nous:
Email: csc@iec.ch
Tél.: +41 22 919 02 11
Fax: +41 22 919 03 00
IEC/TR 62271-208 ®
Edition 1.0 2009-10
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
High-voltage switchgear and controlgear –
Part 208: Methods to quantify the steady state, power-frequency electromagnetic
fields generated by HV switchgear assemblies and HV/LV prefabricated
substations
Appareillage à haute tension –
Partie 208: Méthodes de quantification des champs électromagnétiques à
fréquence industrielle en régime établi générés par les ensembles
d’appareillages HT et les postes préfabriqués HT/BT
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 29.130.10 ISBN 978-2-88910-657-8
– 2 – TR 62271-208 © IEC:2009
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms and definitions .8
4 Evaluation requirements .9
4.1 General .9
4.2 Methods of evaluation .9
4.3 Evaluation of electric fields.10
4.3.1 HV switchgear assemblies.10
4.3.2 HV/LV prefabricated substations.10
4.4 Evaluation of magnetic fields.10
4.4.1 HV switchgear assemblies.10
4.4.2 HV/LV prefabricated substations.11
5 Measurements.12
5.1 General .12
5.2 Measuring instruments .12
5.3 Measurement procedures .12
5.3.1 General .12
5.3.2 Electric field .13
5.3.3 Magnetic field .16
5.3.4 Background fields .16
5.3.5 Environmental factors.16
5.4 Measurement set-up.17
5.4.1 General .17
5.4.2 Additional provisions for HV/LV prefabricated substations .20
6 Calculations .20
6.1 General .20
6.2 Software.21
6.3 Calculation procedures.21
6.4 Results.21
6.5 Validation .22
7 Documentation .22
7.1 Characteristics of the HV switchgear assembly or prefabricated substation .22
7.2 Evaluation method.22
7.3 Presentation of the measurement results.22
7.4 Presentation of the calculation results .23
Annex A (informative) Presentation of E or B field measurement data – Example for a
typical HV/LV pre-fabricated substation .24
Annex B (informative) Examples of analytical solutions to benchmark EMF
calculations.27
Bibliography.45
Figure 1 – Example of test circuits configuration to obtain the maximum external
magnetic field of a switchgear assembly and/or a prefabricated substation .11
Figure 2 – Reference surface (RS) for equipment of irregular shape .13
– 3 –
TR 62271-208 © IEC:2009
Figure 3 – Scanning areas to find the hot spots .14
Figure 4 – Determination of the field variation as a function of the distance from the
hot spot locations (perpendicular to the reference surface) .15
Figure 5 – Test set-up of main components, external cables, hot spot locations and
measurement volume.18
Figure 6 – Test circuit for electric and magnetic field measurement .19
Figure A.1 – Hot spot locations representing the field maxima .24
Figure A.2 – Graphical presentation of the field variation .25
Figure A.3 – Example diagram for the field variation at hot spots .26
Figure B.1 – Schematic for 3-phase magnetic field calculation.27
Figure B.2 – Variation of resultant magnetic field around 3-phase cable .30
Figure B.3 – Maximum resultant magnetic field around 3-phase cable .31
Figure B.4 – Schematic for 3-phase electric field calculation.35
Figure B.5 – Variation of resultant electric field around 3-phase cable .38
Figure B.6 – Maximum resultant electric field around 3-phase cable .40
Table A.1 – Listing of the hot spot coordinates.25
Table A.2 – Variation of field values for one hot spot .25
Table A.3 – Background fields .26
Table B.1 – Values of H for spatial angles θ and time angles ωt .30
res
Table B.2 – Values of maximum H for spatial angles θ.32
res
Table B.3 – Values of E for spatial angles θ and time angles ωt.39
res
Table B.4 – Values of maximum E for spatial angles θ .40
– 4 – TR 62271-208 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 208: Methods to quantify the steady state,
power-frequency electromagnetic fields
generated by HV switchgear assemblies
and HV/LV prefabricated substations
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, gove
...
IEC/TR 62271-208 ®
Edition 1.0 2009-10
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
High-voltage switchgear and controlgear –
Part 208: Methods to quantify the steady state, power-frequency electromagnetic
fields generated by HV switchgear assemblies and HV/LV prefabricated
substations
Appareillage à haute tension –
Partie 208: Méthodes de quantification des champs électromagnétiques à
fréquence industrielle en régime établi générés par les ensembles
d’appareillages HT et les postes préfabriqués HT/BT
IEC/TR 62271-208:2009
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.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.
IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: inmail@iec.ch
Web: 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.
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.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: csc@iec.ch
Tel.: +41 22 919 02 11
Fax: +41 22 919 03 00
A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.
ƒ Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm
Le Catalogue en-ligne de la CEI vous permet d’effectuer des recherches en utilisant différents critères (numéro de référence,
texte, comité d’études,…). Il donne aussi des informations sur les projets et les publications retirées ou remplacées.
ƒ Just Published CEI: www.iec.ch/online_news/justpub
Restez informé sur les nouvelles publications de la CEI. Just Published détaille deux fois par mois les nouvelles
publications parues. Disponible en-ligne et aussi par email.
ƒ Electropedia: www.electropedia.org
Le premier dictionnaire en ligne au monde de termes électroniques et électriques. Il contient plus de 20 000 termes et
définitions en anglais et en français, ainsi que les termes équivalents dans les langues additionnelles. Egalement appelé
Vocabulaire Electrotechnique International en ligne.
ƒ Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm
Si vous désirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du
Service clients ou contactez-nous:
Email: csc@iec.ch
Tél.: +41 22 919 02 11
Fax: +41 22 919 03 00
IEC/TR 62271-208 ®
Edition 1.0 2009-10
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
High-voltage switchgear and controlgear –
Part 208: Methods to quantify the steady state, power-frequency electromagnetic
fields generated by HV switchgear assemblies and HV/LV prefabricated
substations
Appareillage à haute tension –
Partie 208: Méthodes de quantification des champs électromagnétiques à
fréquence industrielle en régime établi générés par les ensembles
d’appareillages HT et les postes préfabriqués HT/BT
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 29.130.10 ISBN 978-2-88910-657-8
– 2 – TR 62271-208 © IEC:2009
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms and definitions .8
4 Evaluation requirements .9
4.1 General .9
4.2 Methods of evaluation .9
4.3 Evaluation of electric fields.10
4.3.1 HV switchgear assemblies.10
4.3.2 HV/LV prefabricated substations.10
4.4 Evaluation of magnetic fields.10
4.4.1 HV switchgear assemblies.10
4.4.2 HV/LV prefabricated substations.11
5 Measurements.12
5.1 General .12
5.2 Measuring instruments .12
5.3 Measurement procedures .12
5.3.1 General .12
5.3.2 Electric field .13
5.3.3 Magnetic field .16
5.3.4 Background fields .16
5.3.5 Environmental factors.16
5.4 Measurement set-up.17
5.4.1 General .17
5.4.2 Additional provisions for HV/LV prefabricated substations .20
6 Calculations .20
6.1 General .20
6.2 Software.21
6.3 Calculation procedures.21
6.4 Results.21
6.5 Validation .22
7 Documentation .22
7.1 Characteristics of the HV switchgear assembly or prefabricated substation .22
7.2 Evaluation method.22
7.3 Presentation of the measurement results.22
7.4 Presentation of the calculation results .23
Annex A (informative) Presentation of E or B field measurement data – Example for a
typical HV/LV pre-fabricated substation .24
Annex B (informative) Examples of analytical solutions to benchmark EMF
calculations.27
Bibliography.45
Figure 1 – Example of test circuits configuration to obtain the maximum external
magnetic field of a switchgear assembly and/or a prefabricated substation .11
Figure 2 – Reference surface (RS) for equipment of irregular shape .13
– 3 –
TR 62271-208 © IEC:2009
Figure 3 – Scanning areas to find the hot spots .14
Figure 4 – Determination of the field variation as a function of the distance from the
hot spot locations (perpendicular to the reference surface) .15
Figure 5 – Test set-up of main components, external cables, hot spot locations and
measurement volume.18
Figure 6 – Test circuit for electric and magnetic field measurement .19
Figure A.1 – Hot spot locations representing the field maxima .24
Figure A.2 – Graphical presentation of the field variation .25
Figure A.3 – Example diagram for the field variation at hot spots .26
Figure B.1 – Schematic for 3-phase magnetic field calculation.27
Figure B.2 – Variation of resultant magnetic field around 3-phase cable .30
Figure B.3 – Maximum resultant magnetic field around 3-phase cable .31
Figure B.4 – Schematic for 3-phase electric field calculation.35
Figure B.5 – Variation of resultant electric field around 3-phase cable .38
Figure B.6 – Maximum resultant electric field around 3-phase cable .40
Table A.1 – Listing of the hot spot coordinates.25
Table A.2 – Variation of field values for one hot spot .25
Table A.3 – Background fields .26
Table B.1 – Values of H for spatial angles θ and time angles ωt .30
res
Table B.2 – Values of maximum H for spatial angles θ.32
res
Table B.3 – Values of E for spatial angles θ and time angles ωt.39
res
Table B.4 – Values of maximum E for spatial angles θ .40
– 4 – TR 62271-208 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 208: Methods to quantify the steady state,
power-frequency electromagnetic fields
generated by HV switchgear assemblies
and HV/LV prefabricated substations
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, gove
...
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