• IEC TR 61000-3-7:2008

    Current The latest, up-to-date edition.

    Electromagnetic compatibility (EMC) - Part 3-7: Limits - Assessment of emission limits for the connection of fluctuating installations to MV, HV and EHV power systems

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English

    Published date:  22-02-2008

    Publisher:  International Electrotechnical Committee

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    Abstract - (Show below) - (Hide below)

    This part of IEC 61000 provides guidance on principles which can be used as the basis for determining the requirements for the connection of fluctuating installations to MV, HV and EHV public power systems (LV installations are covered in other IEC documents). For the purposes of this report, a fluctuating installation means an installation (which may be a load or a generator) that produces voltage flicker and / or rapid voltage changes. The primary objective is to provide guidance to system operators or owners on engineering practices which will facilitate the provision of adequate service quality for all connected customers. In addressing installations, this document is not intended to replace equipment standards for emission limits. This report addresses the allocation of the capacity of the system to absorb disturbances. It does not address how to mitigate disturbances, nor does it address how the capacity of the system can be increased. Since the guidelines outlined in this report are necessarily based on certain simplifying assumptions, there is no guarantee that this approach will always provide the optimum solution for all flicker situations. The recommended approach should be used with flexibility and engineering judgment as far as engineering is concerned, when applying the given assessment procedures in full or in part. The system operator or owner is responsible for specifying requirements for the connection of fluctuating installations to the system. The fluctuating installation is to be understood as the customer's complete installation (i.e. including fluctuating and non fluctuating parts). Problems related to voltage fluctuations fall into two basic categories:
    - Flicker effect from light sources as a result of voltage fluctuations;
    - Rapid voltage changes even within the normal operational voltage tolerances are considered as a disturbing phenomenon.
    The report gives guidance for the coordination of the flicker emissions between different voltage levels in order to meet the compatibility levels at the point of utilisation. This report primarily focuses on controlling or limiting flicker, but a clause is included to address the limitation of rapid voltage changes. This second edition cancels and replaces the first edition published in 1996 and constitutes a technical revision. This new edition is significantly more streamlined than the original technical report (Edition 1), and reflects the experiences gained in the application of the first edition. This technical report has also been harmonised with IEC/TR 61000-3-6 and IEC/TR 61000-3-13. This Technical Report has the status of a basic EMC publication in accordance with IEC Guide 107.

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    Committee TC 77/SC 77A
    Development Note Supersedes IEC 61000-3-7. (02/2008) Stability Date: 2018. (09/2017)
    Document Type Technical Report
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 61400-21:2008 Wind turbines Measurement and assessment of power quality characteristics of grid connected wind turbines
    EN 61000-4-30:2015/AC:2017-01 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS (IEC 61000-4-30:2015/COR1:2016)
    UNE-EN 61000-3-3:2013 Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current
    NBR IEC 61851-21 : 2013 ELECTRIC VEHICLE CONDUCTIVE CHARGING SYSTEM - PART 21: ELETRIC VEHICLE REQUIREMENTS FOR CONDUCTIVE CONNECTION TO AN A.C/D.C SUPPLY
    CEI CLC/TR 50422 : 2015 GUIDE FOR THE APPLICATION OF THE EUROPEAN STANDARD EN 50160
    CSA C61000-3-14:15 (R2019) 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 (Adopted IEC/TR 61000-3-14:2011, first edition, 2011-10, with Canadian deviations)
    IEC TR 61000-3-6:2008 Electromagnetic compatibility (EMC) - Part 3-6: Limits - Assessment of emission limits for the connection of distorting installations to MV, HV and EHV power systems
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    PD IEC/TR 61000-3-14:2011 (published 2011-11) Electromagnetic compatibility (EMC) Assessment of emission limits for harmonics, interharmonics, voltage fluctuations and unbalance for the connection of disturbing installations to LV power systems
    CLC/TR 50422:2013 GUIDE FOR THE APPLICATION OF THE EUROPEAN STANDARD EN 50160
    BS EN 62135-2:2015 (published 2015-05) Resistance welding equipment Electromagnetic compatibility (EMC) requirements
    BS EN 61000-4-30:2015 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS (IEC 61000-4-30:2015)
    PD IEC/TR 61000-3-13:2008 (published 2008-04) Electromagnetic compatibility (EMC) Limits. Assessment of emission limits for the connection of unbalanced installations to MV, HV and EHV power systems
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    PD IEC/TR 61000-3-15:2011 (published 2011-10) Electromagnetic compatibility (EMC) Limits. Assessment of low frequency electromagnetic immunity and emission requirements for dispersed generation systems in LV network
    S.R. CLC/TR 50422:2013 GUIDE FOR THE APPLICATION OF THE EUROPEAN STANDARD EN 50160
    02/204840 DC : DRAFT APR 2002 PREN 50217 - IN SITU MEASUREMENTS OF DISTURBANCE EMISSION
    PD IEC/TR 61850-90-17:2017 Communication networks and systems for power utility automation Using IEC 61850 to transmit power quality data
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    CSA C61000.3.6 : 2009 : R2014 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-6: LIMITS - ASSESSMENT OF EMISSION LIMITS FOR THE CONNECTION OF DISTORTING INSTALLATIONS TO MV, HV AND EHV POWER SYSTEMS
    I.S. EN 61000-3-3:2013 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-3: LIMITS - LIMITATION OF VOLTAGE CHANGES, VOLTAGE FLUCTUATIONS AND FLICKER IN PUBLIC LOW-VOLTAGE SUPPLY SYSTEMS, FOR EQUIPMENT WITH RATED CURRENT <= 16 A PER PHASE AND NOT SUBJECT TO CONDITIONAL CONNECTION (IEC 61000-3-3:2013 (EQV))
    CSA C61000-3-13 : 2009 : R2017 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-13: LIMITS - ASSESSMENT OF EMISSION LIMITS FOR THE CONNECTION OF UNBALANCED INSTALLATIONS TO MV, HV AND EHV POWER SYSTEMS
    BS EN 60146-1-1 : 2010 SEMICONDUCTOR CONVERTERS - GENERAL REQUIREMENTS AND LINE COMMUTATED CONVERTERS - PART 1-1: SPECIFICATION OF BASIC REQUIREMENTS
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    CSA C61000-4-30 : 2010 : R2014 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS
    CSA C61000-3-13 :2009 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-13: LIMITS - ASSESSMENT OF EMISSION LIMITS FOR THE CONNECTION OF UNBALANCED INSTALLATIONS TO MV, HV AND EHV POWER SYSTEMS
    IEC TR 61000-3-13:2008 Electromagnetic compatibility (EMC) - Part 3-13: Limits - Assessment of emission limits for the connection of unbalanced installations to MV, HV and EHV power systems
    EN IEC 62933-2-1 : 2018 ELECTRICAL ENERGY STORAGE (EES) SYSTEMS - PART 2-1: UNIT PARAMETERS AND TESTING METHODS - GENERAL SPECIFICATION (IEC 62933-2-1:2017)
    IEC 61000-3-3:2013 RLV Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current 16 A per phase and not subject to conditional connection
    BS PD CLC/TR 50422 : 2013 GUIDE FOR THE APPLICATION OF THE EUROPEAN STANDARD EN 50160
    IEEE 1453 : 2015 RECOMMENDED PRACTICE FOR THE ANALYSIS OF FLUCTUATING INSTALLATIONS ON POWER SYSTEMS
    I.S. EN 50160:2010 VOLTAGE CHARACTERISTICS OF ELECTRICITY SUPPLIED BY PUBLIC ELECTRICITY NETWORKS
    I.S. EN IEC 62933-2-1:2018 ELECTRICAL ENERGY STORAGE (EES) SYSTEMS - PART 2-1: UNIT PARAMETERS AND TESTING METHODS - GENERAL SPECIFICATION
    I.S. EN 61000-4-30:2015 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS
    CEI EN 61400-21 : 2011 WIND TURBINES - PART 21: MEASUREMENT AND ASSESSMENT OF POWER QUALITY CHARACTERISTICS OF GRID CONNECTED WIND TURBINES
    S.R. CLC/TS 50549-2:2015 REQUIREMENTS FOR GENERATING PLANTS TO BE CONNECTED IN PARALLEL WITH DISTRIBUTION NETWORKS - PART 2: CONNECTION TO A MV DISTRIBUTION NETWORK
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    CSA C61000-3-14 : 2015 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
    CSA C61000-3-3:14 (R2019) Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤ 16 A per phase and not subject to conditional connection (Adopted IEC 61000-3-3:2013, third edition, 2013-05, with Canadian deviations) | Compatibilité électromagnétique (CEM) - Partie 3-3: Limites - Limitation des variations de tension, des fluctuations de tension et du papillotement dans les réseaux publics d\'alimentation basse tension, pour les matériels ayant un courant assigné ≤ 16 A par phase et non soumis à un raccordement conditionnel (norme IEC 61000-3-3:2013 adoptée, troisième édition, 2013-05, avec exigences propres au Canada)
    CSA C61000.3.3 : 2014 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-3: LIMITS - LIMITATION OF VOLTAGE CHANGES, VOLTAGE FLUCTUATIONS AND FLICKER IN PUBLIC LOW-VOLTAGE SUPPLY SYSTEMS, FOR EQUIPMENT WITH RATED CURRENT <= 16 A PER PHASE AND NOT SUBJECT TO CONDITIONAL CONNECTION
    IEC TR 61850-90-17:2017 Communication networks and systems for power utility automation - Part 90-17: Using IEC 61850 to transmit power quality data
    NF EN 50160 : 2011 AMD 1 2015 VOLTAGE CHARACTERISTICS OF ELECTRICITY SUPPLIED BY PUBLIC DISTRIBUTION NETWORKS
    CEI EN 60146-1-1 : 2013 SEMICONDUCTOR CONVERTERS - GENERAL REQUIREMENTS AND LINE COMMUTATED CONVERTERS - PART 1-1: SPECIFICATION OF BASIC REQUIREMENTS
    EN 50160 : 2010 AMD 1 2015 VOLTAGE CHARACTERISTICS OF ELECTRICITY SUPPLIED BY PUBLIC ELECTRICITY NETWORKS
    I.S. EN 61400-21:2008 WIND TURBINES - PART 21: MEASUREMENT AND ASSESSMENT OF POWER QUALITY CHARACTERISTICS OF GRID CONNECTED WIND TURBINES
    IEC 61800-3:2017 Adjustable speed electrical power drive systems - Part 3: EMC requirements and specific test methods
    I.S. EN 60519-1:2015 SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS
    IEEE 1547 : 2003 INTERCONNECTION AND INTEROPERABILITY OF DISTRIBUTED ENERGY RESOURCES WITH ASSOCIATED ELECTRIC POWER SYSTEMS INTERFACES
    IEC TS 62749:2015 Assessment of power quality - Characteristics of electricity supplied by public networks
    IEC TR 61000-3-15:2011 Electromagnetic compatibility (EMC) - Part 3-15: Limits - Assessment of low frequency electromagnetic immunity and emission requirements for dispersed generation systems in LV network
    IEC TR 61000-3-14:2011 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/IEEE PAS 63547:2011 Interconnecting distributed resources with electric power systems
    IEC 62933-2-1:2017 Electrical energy storage (EES) systems - Part 2-1: Unit parameters and testing methods - General specification
    I.S. EN 62135-2:2015 RESISTANCE WELDING EQUIPMENT - PART 2: ELECTROMAGNETIC COMPATIBILITY (EMC) REQUIREMENTS
    BS EN 60519-1:2015 Safety in installations for electroheating and electromagnetic processing General requirements
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    13/30277685 DC : 0 BS EN 60519-1 - SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS
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    17/30354643 DC : 0 BS EN 62933-2-1 - ELECTRIC ENERGY STORAGE (ESS) SYSTEMS - PART 2-1: UNIT PARAMETERS AND TESTING METHODS - GENERAL SPECIFICATION
    IEC 61000-4-30 : 3.0EN+(REDLINE+VERSION) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS
    09/30204029 DC : 0 BS EN 61439-1 - LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES
    IEC 61000-4-30:2015 RLV Electromagnetic compatibility (EMC) - Part 4-30: Testing and measurement techniques - Power quality measurement methods
    IEC 62135-2:2015 Resistance welding equipment - Part 2: Electromagnetic compatibility (EMC) requirements
    IEC 61400-21:2008 Wind turbines - Part 21: Measurement and assessment of power quality characteristics of grid connected wind turbines
    UNE-EN 50160:2011 Voltage characteristics of electricity supplied by public electricity networks
    EN 60519-1:2015 SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS (IEC 60519-1:2015)
    EN 61000-3-3:2013 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-3: LIMITS - LIMITATION OF VOLTAGE CHANGES, VOLTAGE FLUCTUATIONS AND FLICKER IN PUBLIC LOW-VOLTAGE SUPPLY SYSTEMS, FOR EQUIPMENT WITH RATED CURRENT <= 16 A PER PHASE AND NOT SUBJECT TO CONDITIONAL CONNECTION (IEC 61000-3-3:2013)
    EN 61400-21:2008 WIND TURBINES - PART 21: MEASUREMENT AND ASSESSMENT OF POWER QUALITY CHARACTERISTICS OF GRID CONNECTED WIND TURBINES
    EN 62135-2:2015 RESISTANCE WELDING EQUIPMENT - PART 2: ELECTROMAGNETIC COMPATIBILITY (EMC) REQUIREMENTS (IEC 62135-2:2015)

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC TR 61000-2-6:1995 Electromagnetic compatibility (EMC) - Part 2: Environment - Section 6: Assessment of the emission levels in the power supply of industrial plants as regards low-frequency conducted disturbances
    IEC 61000-4-30 : 3.0EN+(REDLINE+VERSION) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS
    IEC 61000-4-15 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-15: TESTING AND MEASUREMENT TECHNIQUES - FLICKERMETER - FUNCTIONAL AND DESIGN SPECIFICATIONS
    IEC GUIDE 107:2014 Electromagnetic compatibility - Guide to the drafting of electromagnetic compatibility publications
    IEC 61000-3-11 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-11: 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
    IEC 61000-2-12:2003 Electromagnetic compatibility (EMC) - Part 2-12: Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public medium-voltage power supply systems
    IEC 60050-601:1985 International Electrotechnical Vocabulary (IEV) - Part 601: Generation, transmission and distribution of electricity - General
    IEC TR 61000-3-13:2008 Electromagnetic compatibility (EMC) - Part 3-13: Limits - Assessment of emission limits for the connection of unbalanced installations to MV, HV and EHV power systems
    IEC 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
    IEC TR 61000-2-1:1990 Electromagnetic compatibility (EMC) - Part 2: Environment - Section 1: Description of the environment - Electromagnetic environment for low-frequency conducted disturbances and signalling in public power supply systems
    IEC 61000-2-2:2002+AMD1:2017 CSV Electromagnetic compatibility (EMC) - Part 2-2: Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems
    IEC 61000-3-3 : 3.0EN+(REDLINE+VERSION) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-3: LIMITS - LIMITATION OF VOLTAGE CHANGES, VOLTAGE FLUCTUATIONS AND FLICKER IN PUBLIC LOW-VOLTAGE SUPPLY SYSTEMS, FOR EQUIPMENT WITH RATED CURRENT <= 16 A PER PHASE AND NOT SUBJECT TO CONDITIONAL CONNECTION
    IEC TR 61000-3-6:2008 Electromagnetic compatibility (EMC) - Part 3-6: Limits - Assessment of emission limits for the connection of distorting installations to MV, HV and EHV power systems
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