prEN IEC 60688:2021

Electrical measuring transducers for converting AC and DC electrical quantities to analogue or digital signals

IEC 60688:2021 is available as IEC 60688:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60688:2021 applies to transducers with electrical inputs and outputs for making measurements of AC or DC electrical quantities. The output signal can be in the form of an analogue direct current, an analog direct voltage or in digital form. This document applies to measuring transducers used for converting electrical quantities such as – current, – voltage, – active power, – reactive power, – power factor, – phase angle, – frequency, – harmonics or total harmonic distortion, and – apparent power to an output signal. This document is not applicable for – instrument transformers that complies with IEC 61869 (all parts), – transmitters for use in industrial process application that complies with IEC 60770 (all parts), and – performance measuring and monitoring devices (PMD) that comply with IEC 61557 12:2018. Within the measuring range, the output signal is a function of the measurand. An auxiliary supply can be needed. This document applies a) if the nominal frequency of the input(s) lies between 0 Hz and 1 500 Hz, b) to the electrical measuring transducer if it is part of a system for the measurement of a non-electrical quantity, and if it otherwise falls within the scope of this document, and c) to transducers for use in a variety of applications such as telemetry and process control and in one of a number of defined environments. This document is intended: – to specify the terminology and definitions relating to transducers whose main application is in industry, – to unify the test methods used in evaluating transducer performance, and – to specify accuracy limits and output values for transducers. IEC 60688:2021 cancels and replaces the third edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) updating normative references; b) additional requirements for specific transducers used for LV monitoring applications; c) creation of interface coding to ease selection by the end-user.

Elektrische Messumformer zur Umwandlung von elektrischen Wechselstromgrößen und Gleichstromgrößen in analoge oder digitale Signale

Transducteurs électriques de mesure convertissant les grandeurs électriques alternatives ou continues en signaux analogiques ou numériques

IEC 60688:2021 est disponible sous forme de IEC 60688:2021 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 60688:2021 s'applique aux transducteurs à grandeurs d'entrées et de sorties électriques destinés à mesurer des grandeurs électriques alternatives ou continues. Le signal de sortie peut être sous la forme d’un courant continu analogique ou d’une tension continue analogique ou d’un signal numérique. Le présent document s'applique aux transducteurs de mesure destinés à convertir des grandeurs électriques, telles que: – le courant, – la tension, – la puissance active, – la puissance réactive, – le facteur de puissance, – l’angle de phase, – la fréquence, – les harmoniques ou la distorsion harmonique totale, et – la puissance apparente en signal de sortie. Le présent document ne s’applique pas: – aux transformateurs de mesure conformes à la série IEC 61869, – aux transmetteurs utilisés dans le processus industriel conformes à la série IEC 60770, et – aux dispositifs de mesure et de surveillance des performances (PMD – performance measuring and monitoring device) conformes à l’IEC 61557-12:2018. Dans l’étendue de mesure, le signal de sortie varie en fonction du mesurande. Une alimentation auxiliaire peut être nécessaire. Le présent document s'applique: a) si la fréquence nominale de la ou des grandeurs d'entrée est comprise entre 0 Hz et 1 500 Hz; b) à un transducteur de mesure électrique appartenant à une chaîne de mesure d'une grandeur non électrique, et si, par ailleurs, celui-ci relève du domaine d'application du présent document, et c) aux transducteurs destinés à une utilisation générale, par exemple à la télémesure, à la commande de processus et dans un des nombreux environnements spécifiés. Le présent document a pour objet: – de spécifier la terminologie et les définitions relatives aux transducteurs dont l'application principale relève du domaine de l'industrie, – d'unifier les méthodes d'essai utilisées pour évaluer les performances des transducteurs, et – de spécifier les limites de précision et les valeurs de sortie des transducteurs. L'IEC 60688:2021 annule et remplace la troisième édition parue en 2012. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) mise à jour des références normatives; b) exigences supplémentaires pour les transducteurs spécifiques utilisés pour les applications de surveillance de la BT (basse tension) c) création d'un codage d'interface pour faciliter la sélection par l'utilisateur final.

Električni merilni pretvorniki za pretvarjanje izmeničnih in enosmernih električnih veličin v analogne ali digitalne signale

General Information

• Status: Not Published
• Publication Date: 22-Aug-2022
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• Technical Committee: CLC/TC 85X - Measuring equipment for electrical and electromagnetic quantities
• Drafting Committee: IEC/TC 85 - IEC_TC_85
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Mandate: M/552 - [C(2016) 7641 final] Standardisation request as regards harmonised standards in support of Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility
• Ref Project: oSIST prEN IEC 60688:2021 - Electrical measuring transducers for converting AC and DC electrical quantities to analogue or digital signals

Relations

• Revised: prEN IEC 60688:2023 - Electrical measuring transducers for converting AC and DC electrical quantities to analogue or digital signals
• Effective Date: 13-Feb-2024
• Revises: EN 60688:2013 - Electrical measuring transducers for converting A.C. and D.C. electrical quantities to analogue or digital signals
• Effective Date: 22-Dec-2020

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 60688:2021
01-april-2021
Električni merilni pretvorniki za pretvarjanje izmeničnih in enosmernih električnih
veličin v analogne ali digitalne signale
Electrical measuring transducers for converting AC and DC electrical quantities to
analogue or digital signals
Transducteurs électriques de mesure convertissant les grandeurs électriques
alternatives ou continues en signaux analogiques ou numériques
Ta slovenski standard je istoveten z: prEN IEC 60688:2021
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
oSIST prEN IEC 60688:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 60688:2021

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oSIST prEN IEC 60688:2021

85/748/CDV

COMMITTEE DRAFT FOR VOTE (CDV)

PROJECT NUMBER:

IEC 60688 ED4
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:

2021-01-29 2021-04-23
SUPERSEDES DOCUMENTS:


IEC TC 85 : MEASURING EQUIPMENT FOR ELECTRICAL AND ELECTROMAGNETIC QUANTITIES

SECRETARIAT: SECRETARY:

China Ms Guiju HAN
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 13,SC 23K,TC 38,TC 66

Other TC/SCs are requested to indicate their interest, if any,
in this CDV to the secretary.

FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING


Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.

The CENELEC members are invited to vote through the
CENELEC online voting system.


This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.


TITLE:
Electrical measuring transducers for converting AC and DC electrical quantities to analogue or digital
signals


PROPOSED STABILITY DATE: 2023


NOTE FROM TC/SC OFFICERS:

Copyright © 2020 International Electrotechnical Commission, IEC . All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

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oSIST prEN IEC 60688:2021
IEC 60688 CDV © IEC 2020 - 2 - 85/748/CDV
1 CONTENTS
2
3 FOREWORD . - 7 -
4 INTRODUCTION . - 9 -
5 1 Scope . - 10 -
6 2 Normative references . - 11 -
7 3 Terms and definitions . - 11 -
8 3.1 General terms . - 11 -
9 3.2 Description of transducers according to the measurand . - 14 -
10 3.3 Description of transducers according to their output load . - 15 -
11 3.4 Nominal values . - 15 -
12 3.5 User adjustment . - 16 -
13 3.6 Influence quantities and reference conditions . - 17 -
14 3.7 Errors and variations . - 17 -
15 3.8 Accuracy, accuracy class, class index . - 18 -
16 4 General . - 18 -
17 4.1 Transducer general architecture . - 18 -
18 4.2 Classification of transducers (TRD) . - 19 -
19 5 Requirements for TRD1 .
...