IEC 61869-99:2022
(Main)Instrument transformers - Part 99: Glossary
Instrument transformers - Part 99: Glossary
IEC 61869-99:2022 contains the glossary of specific terminology and definitions used in the field of instrument transformers within the various parts of the series. Unless it is otherwise specified, in this document all periodic electrical quantities are understood to be RMS values.
The contents of the corrigendum of January 2023 have been included in this copy.
Transformateurs de mesure – Partie 99: Glossaire
L'IEC 61869-99:2022 contient le glossaire de la terminologie spécifique et des définitions appliquées au domaine des transformateurs de mesure dans les différentes parties de la série. Sauf indication contraire, dans le présent document toutes les grandeurs électriques périodiques sont comprises comme étant des valeurs efficaces.
Le contenu du corrigendum de janvier 2023 a été pris en considération dans cet exemplaire.
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IEC 61869-99 ®
Edition 1.0 2022-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Instrument transformers –
Part 99: Glossary
Transformateurs de mesure –
Partie 99: Glossaire
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IEC 61869-99 ®
Edition 1.0 2022-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Instrument transformers –
Part 99: Glossary
Transformateurs de mesure –
Partie 99: Glossaire
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 01.040.01; 17.220.20 ISBN 978-2-8322-5852-1
– 2 – IEC 61869-99:2022 © IEC 2022
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
3.1 Basic terms and definitions . 6
3.2 Instrument transformer types, parts and details . 9
3.3 Current aspects . 16
3.4 Voltage aspects . 18
3.5 Accuracy aspects . 20
3.6 Miscellaneous aspects . 40
Annex A (informative) Indexes . 45
A.1 Alphabetical list of terms . 45
A.2 List of symbols and abbreviated terms in alphabetical order . 50
Bibliography . 54
Table A.1 – Index of terms . 45
Table A.2 – Index of abbreviated terms and symbols . 50
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSTRUMENT TRANSFORMERS –
Part 99: Glossary
FOREWORD
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IEC 61869-99 has been prepared by IEC technical committee 38: Instrument Transformers. It
is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
38/709/FDIS 38/711/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
A list of all parts in the IEC 61869 series, published under the general title Instrument
transformers, can be found on the IEC website.
– 4 – IEC 61869-99:2022 © IEC 2022
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.
The contents of the corrigendum 1 (2023-01) have been included in this copy.
INTRODUCTION
Definitions presented in this document are definitions related to the terminology of the
IEC 61869 series and updated in terms of editorial and technical aspects according to the
official decisions of TC 38 (38/619/Q and 38/626/RQ).
TC 38 decided to start this project to develop the IEC 61869-99 Glossary as preliminary work
for revision of IEC 60050-321. The Glossary IEC 61869-99, when published, will be used as a
basis for the update of IEC 60050-321.
Definitions that are listed in this document are valid definitions and should be used for
terminology concerning instrument transformers.
The structure of this Glossary does not follow the order of product families but follows a logical
order based on the hierarchy of concepts: starting from the most general concepts and
continuing with the more specific ones.
For the purpose of better orientation in the arrangement of terminology it is helpful to use the
"Supporting document for IEC 61869-99" which is located at the following link:
https://www.iec.ch/dyn/www/f?p=103:227:::::FSP_ORG_ID:1241
– 6 – IEC 61869-99:2022 © IEC 2022
INSTRUMENT TRANSFORMERS –
Part 99: Glossary
1 Scope
This part of the IEC 61869 series contains the glossary of specific terminology and definitions
used in the field of instrument transformers within the various parts of the series. Unless it is
otherwise specified, in this document all periodic electrical quantities are understood to be RMS
values.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions
...
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