Letter symbols to be used in electrical technology - Part 4: Rotating electrical machines

This part of IEC 60027 is applicable to rotating electric machines. It gives names and symbols for quantities and units.

Formelzeichen für die Elektrotechnik - Teil 4: Drehende elektrische Maschinen

Symboles littéraux à utiliser en électrotechnique - Partie 4: Machines électriques tournantes

Cette partie de la CEI 60027 s'applique aux machines électriques tournantes. Elle donne les noms et symboles des grandeurs et unités.

Črkovni simboli za uporabo v elektrotehnologiji - 4. del: Električni rotacijski stroji (IEC 60027-4:2006)

General Information

Status
Published
Publication Date
10-Oct-2007
Current Stage
6060 - Document made available
Due Date
11-Oct-2007
Completion Date
11-Oct-2007

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Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 60027-4:2008
01-januar-2008
1DGRPHãþD
SIST HD 245.4 S1:2004

ýUNRYQLVLPEROL]DXSRUDERYHOHNWURWHKQRORJLMLGHO(OHNWULþQLURWDFLMVNLVWURML

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Letter symbols to be used in electrical technology -- Part 4: Rotating electric machines

Formelzeichen für die Elektrotechnik -- Teil 4: Drehende elektrische Maschinen

Symboles littéraux à utiliser en électrotechnique -- Partie 4: Machines électriques

tournantes
Ta slovenski standard je istoveten z: EN 60027-4:2007
ICS:
01.075 Simboli za znake Character symbols
29.160.01 Rotacijski stroji na splošno Rotating machinery in
general
SIST EN 60027-4:2008 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 60027-4:2008
---------------------- Page: 2 ----------------------
SIST EN 60027-4:2008
EUROPEAN STANDARD
EN 60027-4
NORME EUROPÉENNE
October 2007
EUROPÄISCHE NORM
ICS 01.060 Supersedes HD 245.4 S1:1987
English version
Letter symbols to be used in electric technology -
Part 4: Rotating electric machines
(IEC 60027-4:2006)
Symboles littéraux Formelzeichen für die Elektrotechnik -
à utiliser en électrotechnique - Teil 4: Drehende elektrische Maschinen
Partie 4: Machines électriques tournantes (IEC 60027-4:2006)
(CEI 60027-4:2006)

This European Standard was approved by CENELEC on 2007-10-01. CENELEC members are bound to comply

with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard

the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on

application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CENELEC member into its own language and notified

to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the

Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,

Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60027-4:2007 E
---------------------- Page: 3 ----------------------
SIST EN 60027-4:2008
EN 60027-4:2007 - 2 -
Foreword

The text of document 25/330/FDIS, future edition 2 of IEC 60027-4, prepared by IEC TC 25, Quantities

and units, and their letter symbols, was submitted to the IEC-CENELEC parallel vote and was approved

by CENELEC as EN 60027-4 on 2007-10-01.
This European Standard supersedes HD 245.4 S1:1987.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2008-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-10-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice

The text of the International Standard IEC 60027-4:2006 was approved by CENELEC as a European

Standard without any modification.
__________
---------------------- Page: 4 ----------------------
SIST EN 60027-4:2008
- 3 - EN 60027-4:2007
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD

applies.
Publication Year Title EN/HD Year
IEC 60027-1 1992 Letter symbols to be used in electrical EN 60027-1 2006
technology -
Part 1: General
IEC 60034-1 2004 Rotating electrical machines - EN 60034-1 2004
Part 1: Rating and performance
IEC 60034-2 1972 Rotating electrical machines - EN 60034-2 1996
Part 2: Methods for determining losses and
efficiency of rotating electrical machinery from
tests (excluding machines for traction
vehicles)
IEC 60034-4 (mod) 1985 Rotating electrical machines - EN 60034-4 1995
Part 4: Methods for determining synchronous
machine quantities from tests
IEC 60034-9 (mod) 2003 Rotating electrical machines - EN 60034-9 2005
Part 9: Noise limits
IEC 60034-12 2002 Rotating electrical machines - EN 60034-12 2002
Part 12: Starting performance of single-speed
three-phase cage induction motors
IEC/TS 60034-17 2002 Rotating electrical machines -
+ corr. June 2002 Part 17: Cage induction motors when fed
+ corr. April 2003 from converters - Application guide CLC/TS 60034-17 2004
IEC/TS 60034-20-1 2002 Rotating electrical machines - CLC/TS 60034-20-1 2004
Part 20-1: Control motors - Stepping motors
IEC 60034-26 2006 Rotating electrical machines - EN 60034-26 2006
Part 26: Effects of unbalanced voltages on
the performance of three-phase cage
induction motors
EN 60027-1 is based on IEC 60027-1:1995 (Reprint) + A1:1997.
EN 60034-2 includes supplement A:1974 to IEC 60034-2.
---------------------- Page: 5 ----------------------
SIST EN 60027-4:2008
EN 60027-4:2007 - 4 -
Publication Year Title EN/HD Year
IEC 60050-101 1998 International Electrotechnical Vocabulary – –
(IEV) -
Part 101: Mathematics
IEC 60050-111 1996 International Electrotechnical Vocabulary – –
(IEV) -
Chapter 111: Physics and chemistry
IEC 60050-121 1998 International Electrotechnical Vocabulary – –
(IEV) -
Part 121: Electromagnetism
IEC 60050-131 2002 International Electrotechnical Vocabulary – –
(IEV) -
Part 131: Circuit theory
IEC 60050-151 2001 International Electrotechnical Vocabulary – –
(IEV) -
Part 151: Electrical and magnetic devices
IEC 60050-411 1996 International Electrotechnical Vocabulary – –
(IEV) -
Chapter 411: Rotating machinery
IEC 61986 2002 Rotating electrical machines - Equivalent EN 61986 2002
loading and super-position techniques -
Indirect testing to determine temperature rise
---------------------- Page: 6 ----------------------
SIST EN 60027-4:2008
NORME CEI
INTERNATIONALE
IEC
60027-4
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2006-12
Symboles littéraux à utiliser en électrotechnique –
Partie 4:
Machines électriques tournantes
Letter symbols to be used in
electrical technology –
Part 4:
Rotating electric machines
© IEC 2006 Droits de reproduction réservés ⎯ Copyright - all rights reserved

Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any

utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including

électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from

microfilms, sans l'accord écrit de l'éditeur. the publisher.

International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland

Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch

CODE PRIX
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
---------------------- Page: 7 ----------------------
SIST EN 60027-4:2008
60027-4 © IEC:2006 – 3 –
CONTENTS

FOREWORD...........................................................................................................................5

1 Scope...............................................................................................................................9

2 Normative references .......................................................................................................9

3 Currents and related quantities.......................................................................................13

4 Voltages and related quantities ......................................................................................15

5 Powers and related quantities.........................................................................................17

6 Resistances, reactances and impedances ......................................................................21

7 Times and frequencies ...................................................................................................23

8 Geometrical quantities....................................................................................................27

9 Factors and ratios ..........................................................................................................29

10 Mechanical quantities .....................................................................................................31

11 Thermal quantities..........................................................................................................35

12 Acoustics and vibrations.................................................................................................37

13 Measurement evaluation.................................................................................................37

14 Subscripts ......................................................................................................................39

---------------------- Page: 8 ----------------------
SIST EN 60027-4:2008
60027-4 © IEC:2006 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LETTER SYMBOLS TO BE USED IN
ELECTRICAL TECHNOLOGY –
Part 4: Rotating electric machines
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, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. 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 IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any

equipment declared to be in conformity with an IEC Publication.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 60027-4 has been prepared by IEC technical committee 25:

Quantities and units and their symbols.

This second edition cancels and replaces the first edition published in 1985 and constitutes a

technical revision.
This edition is a complete revision of the previous edition of IEC 60027-4.
The text of this standard is based on the following documents:
FDIS Report on voting
25/330/FDIS 25/340/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.
---------------------- Page: 9 ----------------------
SIST EN 60027-4:2008
60027-4 © IEC:2006 – 7 –

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

The list of all the parts of the IEC 60027 series, under the general title Letter symbols to be

used in electrical technology, can be found on the IEC website.

The committee has decided that the contents of this publication will remain unchanged until

the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in

the data related to the specific publication. At this date, the publication will be

• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 10 ----------------------
SIST EN 60027-4:2008
60027-4 © IEC:2006 – 9 –
LETTER SYMBOLS TO BE USED IN
ELECTRICAL TECHNOLOGY –
Part 4: Rotating electric machines
1 Scope

This part of IEC 60027 is applicable to rotating electric machines. It gives names and symbols

for quantities and units.
2 Normative references

The following referenced documents are indispensable for the application of this document.

For dated references, only the edition cited applies. For undated references, the latest edition

of the referenced document (including any amendments) applies.

IEC 60027-1:1992, Letter symbols to be used in electrical technology – Part 1: General

IEC 60034-1:2004, Rotating electrical machines – Part 1: Rating and performance

IEC 60034-2:1972, Rotating electrical machines – Part 2: Methods for determining losses and

efficiency of rotating electrical machinery from tests (excluding machines for traction vehicles)

IEC 60034-4:1985, Rotating electrical machines – Part 4: Methods for determining
synchronous machine quantities from tests
IEC 60034-9:2003, Rotating electrical machines – Part 9: Noise limits

IEC 60034-12:2002, Rotating electrical machines – Part 12: Starting performance of single-

speed three-phase cage induction motors

IEC 60034-17:2002, Rotating electrical machines – Part 17: Cage induction motors when fed

from converters – Application guide

IEC 60034-20-1:2002, Rotating electrical machines – Part 20-1: Control motors – Stepping

motors

IEC 60034-26:2006, Rotating electrical machines – Part 26: Effects of unbalanced voltages on

the performance of three-phase cage induction motors

IEC 60050-101:1998, International Electrotechnical Vocabulary (IEV) – Part 101: Mathematics

IEC 60050-111:1996, International Electrotechnical Vocabulary (IEV) – Part 111: Physics and

chemistry

IEC 60050-121:1998, International Electrotechnical Vocabulary (IEV) – Part 121: Electro-

magnetism
---------------------- Page: 11 ----------------------
SIST EN 60027-4:2008
60027-4 © IEC:2006 – 11 –

IEC 60050-131:2002, International Electrotechnical Vocabulary (IEV) – Part 131: Circuit

theory
IEC 60050-151:2001, Interna
...

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