IEC-TR-61000-3-7-2008.pdf
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1、 IEC/TR 61000-3-7 Edition 2.0 2008-02 TECHNICAL REPORT Electromagnetic compatibility (EMC) Part 3-7: Limits Assessment of emission limits for the connection of fluctuating installations to MV, HV and EHV power systems IEC/TR 61000-3-7:2008(E) BASIC EMC PUBLICATION THIS PUBLICATION IS COPYRIGHT PROTE
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16、us: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC/TR 61000-3-7 Edition 2.0 2008-02 TECHNICAL REPORT Electromagnetic compatibility (EMC) Part 3-7: Limits Assessment of emission limits for the connection of fluctuating installations to MV, HV and EHV power systems INTERNATIONAL ELEC
17、TROTECHNICAL COMMISSION XB ICS 33.100.10 PRICE CODE CODE PRIX ISBN 2-8318-9606-1 BASIC EMC PUBLICATION 2 TR 61000-3-7 IEC:2008(E) CONTENTS FOREWORD.5 INTRODUCTION.7 ACKNOWLEDGMENT.8 1 Scope.9 2 Normative references .10 3 Terms and definitions .10 4 Basic EMC concepts related to voltage fluctuations1
18、3 4.1 Compatibility levels .14 4.2 Planning levels14 4.2.1 Indicative values of planning levels14 4.2.2 Assessment procedure for evaluation against planning levels15 4.3 Illustration of EMC concepts16 4.4 Emission levels .17 5 General principles 18 5.1 Stage 1: simplified evaluation of disturbance e
19、mission 18 5.2 Stage 2: emission limits relative to actual system characteristics.18 5.3 Stage 3: acceptance of higher emission levels on a conditional basis19 5.4 Responsibilities .19 6 General guidelines for the assessment of emission levels 19 6.1 Point of evaluation.19 6.2 Definition of flicker
20、emission level .20 6.3 Assessment of flicker emission levels20 6.4 Declared system short circuit power or impedance 21 6.4.1 Short-circuit power or impedance for pre-connection assessment of emission levels21 6.4.2 Short-circuit power or impedance for assessing actual emission levels.21 6.5 General
21、guidelines for assessing the declared system impedance.21 7 General summation law 21 8 Emission limits for fluctuating installations connected to MV systems .22 8.1 Stage 1: simplified evaluation of disturbance emission 22 8.2 Stage 2: emission limits relative to actual system characteristics.23 8.2
22、.1 Global emission to be shared between the customers23 8.2.2 Individual emission limits.24 8.3 Stage 3: acceptance of higher emission levels on a conditional basis25 8.4 Summary diagram of the evaluation procedure26 9 Emission limits for fluctuating installations connected to HV or EHV systems .28
23、9.1 Stage 1: simplified evaluation of disturbance emission 28 9.2 Stage 2: emission limits relative to actual system characteristics.28 9.2.1 Assessment of the total available power 28 9.2.2 Individual emission limits.29 9.3 Stage 3: acceptance of higher emission levels on a conditional basis30 10 R
24、apid voltage changes .31 10.1 General considerations31 10.2 Compatibility level .32 TR 61000-3-7 IEC:2008(E) 3 10.3 Planning levels32 10.4 Emission limits 33 10.5 Assessment procedure for evaluation against planning levels any IEC National Committee interested in the subject dealt with may participa
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