1、 IEC/TR 61000-3-14 Edition 1.0 2011-10 TECHNICAL REPORT Electromagnetic compatibility(EMC)Part 3-14:Assessment of emission limits for harmonics,interharmonics,voltage fluctuations and unbalance for the connection of disturbing installations to LV power systems IEC/TR 61000-3-14:2011(E)BASIC EMC PUBL
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11、homson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC/TR 61000-3-14 Edition 1.0 2011-10 TECHNICAL REPORT Electromagnetic compatibility(EMC)Part 3-14:Assessment of emission limits for harmonics,int
12、erharmonics,voltage fluctuations and unbalance for the connection of disturbing installations to LV power systems INTERNATIONAL ELECTROTECHNICAL COMMISSION XD ICS 33.100.10 PRICE CODE ISBN 978-2-88912-742-9 Registered trademark of the International Electrotechnical Commission BASIC EMC PUBLICATION C
13、opyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 TR 61000-3-14 IEC:2011(E)CONTENTS FOREWORD.6 INTRODUCTION.8 1 Scope.9 2 Normative references.10 3 Te
14、rms and definitions.11 4 Basic EMC concepts.18 4.1 General.18 4.2 Compatibility levels.18 4.2.1 General.18 4.2.2 Harmonics.18 4.2.3 Interharmonics.19 4.2.4 Voltage fluctuations.20 4.2.5 Unbalance.20 4.3 Planning levels.20 4.3.1 Indicative values of planning levels.20 4.3.2 Assessment procedure for e
15、valuation against planning levels.21 4.4 Illustration of EMC concepts.22 4.5 Emission levels.23 5 General principles.24 5.1 General.24 5.2 Stage 1:simplified evaluation of disturbance emission.24 5.3 Stage 2:emission limits relative to actual system characteristics.25 5.4 Stage 3:acceptance of highe
16、r emission levels on a conditional basis.25 5.5 Responsibilities.26 6 General guidelines for the assessment of emission levels.26 6.1 Point of evaluation.26 6.2 Concept of emission level.26 6.3 Operating conditions.27 6.4 System impedance characteristics.28 7 General summation law.28 7.1 General.28 7.2 For harmonics.29 7.3 For flicker and rapid voltage changes.29 7.4 For voltage unbalance.29 8 Harmonic emission limits for distorting installations in LV systems.30 8.1 Stage 1:simplified evalua
