1、|BRITISH STANDARD BS EN 61000-4-27:2000ICS 33.100.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWElectromagnetic compatibility (EMC) Part 4-27: Testing and measurement techniques Unbalance, immunity test+A1:2009for equipment with input current not exceeding 16 A per phaseNat
2、ional forewordThis British Standard is the UK implementation of EN 61000-4-27:2000+A1:2009. It is identical with IEC 61000-4-27:2000, incorporating amendment 1:2009. It supersedes BS EN 61000-4-27:2001which will be withdrawn on 1 March 2012.The start and finish of text introduced or altered by amend
3、ment is indicated in the text by tags. Tags indicating changes to IEC text carry the number of the IEC amendment. For example, text altered by IEC amendment 1 is indicated by !“.The UK participation in its preparation was entrusted by Technical Committee GEL/210, EMC Policy committee, to Subcommitte
4、e GEL/210/12, EMC basic, generic and low frequency phenomena standardization.A list of organizations represented on this subcommittee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its cor
5、rect application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 61000-4-27:2000+A1:2009Amendments/corrigenda issued since publicationDate Comments 31 August 2009 Implementation of IEC amendment 1:2009 with CENELEC endorsement A1:2009, and alignment of BSI and
6、CENEL:EC publication datesThis British Standard was published under the authority of the Standards Committee and comes into effect on 15 April 2001 BSI 2009ISBN 978 0 580 61450 7EUROPEAN STANDARD EN 61000-4-27+A1NORME EUROPENNE EUROPISCHE NORM May 2009C E N E L E CEuropean Committee for Electrotechn
7、ical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische NormungC e n t r a l S e c r e t a r i a t : r u e d e S t a s s a r t 3 5 , B - 1 0 5 0 B r u s s e l s 2000 CENELEC - All rights of exploitation in any form and by any means reserved world
8、wide for CENELEC members. Ref. No. EN 61000-4-27:2000 EICS 33.100.20English versionElectromagnetic compatibility (EMC)Part 4-27: Testing and measurement techniques -Unbalance, immunity test for equipment with input current not exceeding 16 A per phase(IEC 61000-4-27:2000)Compatibilit lectromagntique
9、 (CEM) Partie 4-27: Techniques dessai et de mesure -Essai dimmunit aux dsquilibres (CEI 61000-4-27:2000)Elektromagnetische Vertrglichkeit (EMV) Teil 4-27: Prf- und Messverfahren -Prfung der Strfestigkeit gegen Unsymmetrie (der Versorgungsspannung) (IEC 61000-4-27:2000)This European Standard was appr
10、oved by CENELEC on 2000-09-01. 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 natio
11、nal 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
12、and notified to the Central Secretariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain,
13、 Sweden, Switzerland and United Kingdom.ForewordThe text of document 77A/308/FDIS, future edition 1 of IEC 61000-4-27, prepared by SC 77A, Low-frequency phenomena, of IEC TC 77, Electromagnetic compatibility, was submitted to the IEC-CENELECparallel vote and was approved by CENELEC as EN 61000-4-27
14、on 2000-09-01.The following dates were fixed: latest date by which the EN has to be implementedat national level by publication of an identicalnational standard or by endorsement (dop) 2001-06-01 latest date by which the national standards conflictingwith the EN have to be withdrawn (dow) 2003-09-01
15、Annexes designated “normative“ are part of the body of the standard.Annexes designated “informative“ are given for information only.In this standard, annex ZA is normative and annexes A, B, C and D are informative.Annex ZA has been added by CENELEC._Endorsement noticeThe text of the International St
16、andard IEC 61000-4-27:2000 was approved by CENELEC as a EuropeanStandard without any modification.In the official version, for Bibliography, the following note has to be added for the standard indicated:IEC 60898 NOTE: Harmonized as EN 60898:1991 (modified)._Foreword The text of document 77A/672/FDI
17、S, future amendment 1 to IEC 61000-4-27:2000, prepared by SC 77A, Low frequency phenomena, of IEC TC 77, Electromagnetic compatibility, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 61000-4-27:2000 on 2009-03-01. The following dates were fixed: late
18、st date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-12-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2012-03-01 _ Endorsement notice The text of
19、 amendment 1:2009 to the International Standard IEC 61000-4-27:2000 was approved by CENELEC as an amendment to the European Standard without any modification. _ to amendment A1BS EN 61000-4-27:2000+A1:2009 EN 61000-4-27:2000+A1:20092CONTENTSPageINTRODUCTION 4Clause1 Scope and object . 52 Normative r
20、eferences. 53 Definitions 64 General 65 Test levels . 76 Test equipment 76.1 Test generators 76.2 Verification of the characteristics of the test generators. 87 Test set-up 88 Test procedures. 98.1 Laboratory reference conditions 98.2 Execution of the test . 99 Evaluation of test results .1010 Test
21、report 10Annex A (informative) Sources, effects and measurement of unbalance14Annex B (informative) Calculation of the degree of unbalance .17Annex C (informative) Information on test levels .18Annex D (informative) Electromagnetic environment classes.19Annex ZA (normative) Normative references to i
22、nternational publications with theircorresponding European publications 21Bibliography 20Figure 1 Example of unbalanced three-phase supply voltage (Test 3)12Figure 2 Succession of three unbalance sequences of the test (the voltages Ua, Ub, Ucrotate) .12Figure 3 Schematic diagram of test instrumentat
23、ion for unbalance 13Figure A.1 Unbalanced voltage vectors .15Figure A.2 Components of the unbalanced vectors in figure A.1 15Table 1 Test levels 7Table 2 Characteristics of the generator 8Figure 4 Example of test generator verification load .13 BSI 2009BS EN 61000-4-27:2000+A1:2009 EN 61000-4-27:200
24、0+A1:20093INTRODUCTIONThis standard is part of IEC 61000 series, according to the following structure:Part 1: GeneralGeneral considerations (introduction, fundamental principles)Definitions, terminologyPart 2: EnvironmentDescription of the environmentClassification of the environmentCompatibility le
25、velsPart 3: LimitsEmission limitsImmunity limits (in so far as they do not fall under the responsibility of productcommittees)Part 4: Testing and measurement techniquesMeasurement techniquesTesting techniquesPart 5: Installation and mitigation guidelinesInstallation guidelinesMitigation methods and
26、devicesPart 6: Generic standardsPart 9: MiscellaneousEach part is further subdivided into several parts, published either as International Standardsor as technical specifications or technical reports, some of which have already been publishedas sections. Others will be published with the part number
27、 followed by a dash and completedby a second number identifying the subdivision (example: 61000-6-1). BSI 2009BS EN 61000-4-27:2000+A1:2009 EN 61000-4-27:2000+A1:20094ELECTROMAGNETIC COMPATIBILITY (EMC) Part 4-27: Testing and measurement techniques Unbalance, immunity test1 Scope and objectThis part
28、 of IEC 61000 is a basic EMC (electromagnetic compatibility) publication. It considersimmunity tests for electric and/or electronic equipment (apparatus and system) in its electro-magnetic environment. Only conducted phenomena are considered, including immunity testsfor equipment connected to public
29、 and industrial networks.The object of this standard is to establish a reference for evaluating the immunity of electricaland electronic equipment when subjected to unbalanced power supply voltage.This standard applies to 50 Hz/60 Hz three-phase powered electrical and/or electronicequipment with rat
30、ed line current up to 16 A per phase.This standard does not apply to equipment with three-phase plus neutral connection if thatequipment operates as a group of single-phase loads connected between phase and neutral.This standard does not apply to electrical and/or electronic equipment connected to a
31、.c. 400 Hzdistribution networks.This standard does not include tests for the zero-sequence unbalance factor.The immunity test levels required for a specific electromagnetic environment together withperformance criteria are indicated in the product, product family or generic standards asapplicable. T
32、his immunity test should be included in product, product family or genericstandards when equipment is likely to show reduced performance or function when exposed toa supply voltage with voltage unbalance.The verification of the reliability of electrical components (capacitors, motors, etc.) and long
33、-term effects (greater than a few minutes) is not considered in this standard.2 Normative referencesThe following normative documents contain provisions which, through reference in this text,constitute provisions of this part of IEC 61000. For dated references, subsequent amendmentsto, or revisions
34、of, any of these publications do not apply. However, parties to agreementsbased on this part of IEC 61000 are encouraged to investigate the possibility of applying themost recent editions of the normative documents indicated below. For undated references, thelatest edition of the normative document
35、referred to applies. Members of IEC and ISO maintainregisters of currently valid International Standards.IEC 60050(161), International Electrotechnical Vocabulary (IEV) Chapter 161: Electro-magnetic compatibilityinput current not exceeding 16 A per phase for equipment with BSI 2009BS EN 61000-4-27:2
36、000+A1:2009 EN 61000-4-27:2000+A1:20095IEC 61000-2-4, Electromagnetic compatibility (EMC) Part 2: Environment Section 4:Compatibility levels in industrial plants for low-frequency conducted disturbances3 DefinitionsFor the purposes of this part of IEC 61000, the following definitions apply.3.1immuni
37、ty (to a disturbance)ability of a device, equipment or system to perform without degradation in the presence of anelectromagnetic disturbanceG5bIEV 161-01-20G5d3.2voltage unbalancein a polyphase system, condition in which the r.m.s. values of the phase voltages or the phaseangles between consecutive
38、 phases are not all equalG5bIEV 161-08-09G5d3.3unbalance factor ku2(%)ratio of the negative sequence component to the positive sequence component measured atmains frequency (50 Hz or 60 Hz) as defined by the method of symmetrical componentsku2 = 100 % (U2/ U1) (negative-sequence voltage/positive-seq
39、uence voltage)NOTE The negative-sequence voltages in a network mainly result from the negative currents of unbalanced loadsflowing in the network.3.4malfunctiontermination of the ability of an equipment to carry out intended functions or the execution ofunintended functions by the equipment4 General
40、Three-phase electrical and electronic equipment may be affected by voltage unbalance.Annex A describes the sources, effects and measurement of this disturbance.Unbalance is caused by either voltage amplitude or phase-shift variations. A formula for thecalculation of the unbalance factor, based upon
41、these parameters, is given in annex B.The purpose of the test is to investigate the influence of unbalance in a three-phase voltagesystem on equipment which may be sensitive to this disturbance, which could cause:G2d overcurrents in a.c. rotating machines;G2d generation of non-characteristic harmoni
42、cs in electronic power converters;G2d synchronization problems or control errors in the control part of electrical equipment (seeannex A). BSI 2009BS EN 61000-4-27:2000+A1:2009 EN 61000-4-27:2000+A1:200965 Test levelsThe equipment under test (EUT) is set up at a steady mains voltage and is then subj
43、ected tounbalance sequences according to figure 2.Table 1 specifies the test levels which are derived as explained in annex C.The duration of the unbalance test, specified between 0,1 s to 60 s, can be taken as a generalguide to study short-term effects.Table 1 Test levelsTest level for Class 2 Test
44、 level for Class 3TestnumberTestlevelClass 1Phase Ampli-tude% UNAngleku2%TimesPhase Ampli-tude% UNAngle ku2%TimesTestlevelforClass XUa100 0 Ua100 0Test 1 Ub95,2 125 6 30 Ub93,5 127 8 60No testrequiredUc90 240 Uc87 240Ua100 0 Ua100 0Test 2 Ub90 131 13 15 Ub87 134 17 15Uc80 239 Uc74 238Ua110 0 Ua110 0
45、Test 3 Ub66 139 25 0,1 Ub66 139 25 2Uc71 235 Uc71 235NOTE 1 UNis the nominal voltageNOTE 2 Ubis lagging against Ua, and Ucis leading against Ua.Tests are respectively specified for equipment in relation to levels 2 and 3 in IEC 61000-2-4.The product committee may specify any test level; however, for
46、 equipment connected to publicsupply systems, it is recommended that the levels should not be lower than those defined forclass 2.6 Test equipment6.1 Test generatorsThe generator shall have provisions to prevent the emission of disturbances which, if injectedin the power supply network, may influenc
47、e the test results.The output voltage shall be adjusted to Gb11% of UNand the phase to Gb10,3. BSI 2009BS EN 61000-4-27:2000+A1:2009 EN 61000-4-27:2000+A1:20097Table 2 Characteristics of the generatorCharacteristic Performance specificationOutput voltage capability Output voltage accuracy Gb12 % of
48、UN.Output current capability Sufficient to supply the EUT under all test conditionsOvershoot/undershoot of the actual voltage, generatorloaded with 100 G57 resistive loadLess than 5 % of the change in voltageVoltage rise (and fall time) during voltage changes,generator loaded with 100 G57 resistive
49、load1 G6ds to 5 G6dsTotal harmonic distortion of the output voltage Less than 3 %Phase shiftingPhase accuracy0, 120 and 240 Gb1 301 between any two phasesFrequency accuracy 0,5 % of f1(50 Hz or 60 Hz)6.2 Verification of the characteristics of the test generators7 Test set-upThe test shall be performed with the EUT connected to the
