BS EN IEC 61000-3-11:2019
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Electromagnetic compatibility (EMC) – Limits. Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems. Equipment with rated current ≤ 75 A and subject to conditional connection
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 24 |
NEW!IEC 61000-3-11:2017 is available as IEC 61000-3-11:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61000-3-11:2017 is concerned with the emission of voltage changes, voltage fluctuations and flicker produced by equipment and impressed on the public low-voltage supply system. It specifies the limits of voltage changes produced by equipment tested under specified conditions. This edition includes the following significant technical changes with respect to the previous edition: a) addition of a new Annex A which explains the limitations and effectiveness of IEC 61000?3-11 regarding the connection of multiple items of similar equipment at the same location in the supply network.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 5 | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications |
| 6 | English CONTENTS |
| 7 | FOREWORD |
| 9 | INTRODUCTION |
| 10 | 1 Scope 2 Normative references |
| 11 | 3 Terms and definitions 4 Requirements |
| 12 | 5 Limits |
| 13 | 6 Test, measurement and evaluation procedures 6.1 Overview 6.2 Test and measurement procedures 6.2.1 Test impedance Ztest Tables Table 1 – Suffixes and their applications |
| 14 | 6.2.2 Test of equipment against Ztest 6.2.3 Evaluation against Zref 6.3 Evaluation and declaration by the manufacturer of the maximum permissible system impedance 6.3.1 Comparison of calculated and measured emission values with Clause 5 limits to enable a declaration of compliance with IEC 61000-3-3 6.3.2 Calculation of the maximum permissible system impedance |
| 15 | 6.4 Evaluation and declaration by the manufacturer of the minimum permissible service current capacity |
| 16 | Annex A (informative) Explanation of flicker exponents A.1 Overview A.2 Explanation of Clause 6 Figures Figure A.1 – Typical motor starting RMS voltage variation plot |
| 19 | Figure A.2 – Visualization of the relationship between items of equipment “n” and Pst |
| 20 | Figure A.3 – Impedance requirements as a function of individual Pst@Zref values and penetration level n |
| 21 | Annex B (informative) Flow chart showing the evaluation and test procedures leading to the connection of equipment Figure B.1 – Flow chart showing the evaluation and test procedures leading to the connection of equipment |
| 22 | Figure B.2 – Reference network for single- and three-phase suppliesderived from a three-phase, four-wire supply |
| 23 | Bibliography |
