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  • CLC/TS 50549-2:2015

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    Requirements for generating plants to be connected in parallel with distribution networks - Part 2: Connection to a MV distribution network

    Available format(s): 

    Withdrawn date:  10-03-2023

    Language(s): 

    Published date:  16-01-2015

    Publisher:  European Committee for Standards - Electrical

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Requirements on generating plants
    5 Conformance test procedure
    Annex A (informative) - Interconnection requirements
    Annex B (informative) - Remote information exchange
    Annex C (informative) - Frequency stabilizing services
    Annex D (informative) - Loss of Mains and overall power
            system security
    Annex E (informative) - Examples of protection strategies
    Annex F (normative) - Abbreviations
    Bibliography

    Abstract - (Show below) - (Hide below)

    The purpose of this Technical Specification is to provide technical guidance on the requirements for generating plants which can be operated in parallel with a distribution network.For practical reasons, this Technical Specification refers to the distribution system operator in case settings have to be defined and/or provided, even when these settings are to be defined and/or provided by another actor according to national and European legal framework. NOTE 1This includes European network codes and their national implementation, as well as further national regulations.NOTE 2Further national requirements especially for the connection to the distribution network and the operation of the generating plant can apply.The requirements of this Technical Specification apply to all generating plants, electrical machinery and electronic equipment, irrespective of the kind of primary energy source and irrespective of the presence of loads in the producer’s network that meet all of the following conditions:-converting any primary energy source into AC electricity;-connected to a MV distribution network;-intended to operate in parallel with this distribution network under normal network operating conditions. NOTE 3Generating plants connected to a LV distribution network fall into the scope of EN 50438 (up to 16 A) and CLC/TS 50549-1 (above 16 A).Unless stated differently by the DSO, a generating plant with a maximum apparent power up to 100 kVA can, as alternative to the requirements of this Technical Specification, comply with CLC/TS 50549-1. A different threshold may be defined by the DSO.This Technical Specification defines connection requirements.This Technical Specification recognizes the existence of National Standards, Network Codes, and specific technical requirements of the DSOs. These should be complied with. Excluded from the scope are:-the selection and evaluation of the point of connection;-power system impact assessment;-connection assessment;-island operation of generating plants, both intentional and unintentional, where no part of the distribution network is involved;-active front ends of drives feeding energy back into the distribution network for short duration;-requirements for the safety of personnel as they are already adequately covered by existing European Standards.

    General Product Information - (Show below) - (Hide below)

    Committee CLC/TC 8X
    Document Type Technical Specification
    Publisher European Committee for Standards - Electrical
    Status Withdrawn
    Superseded By

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

    PD IEC/TS 62786:2017 Distributed energy resources connection with the grid
    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 TS 62786:2017 Distributed energy resources connection with the grid
    EN IEC 62933-2-1:2018 Electrical energy storage (EES) systems - Part 2-1: Unit parameters and testing methods - General specification
    I.S. 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 Electrical energy storage (EES) systems - Part 2-1: Unit parameters and testing methods - General specification

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

    EN 60044-2:1999/A2:2003 INSTRUMENT TRANSFORMERS - PART 2: INDUCTIVE VOLTAGE TRANSFORMERS
    EN 50160 : 2010 AMD 1 2015 VOLTAGE CHARACTERISTICS OF ELECTRICITY SUPPLIED BY PUBLIC ELECTRICITY NETWORKS
    IEC 61000-4-30 : 3.0EN+(REDLINE+VERSION) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS
    IEC 60044-7:1999 Instrument transformers - Part 7: Electronic voltage transformers
    IEC 61000-6-4:2006+AMD1:2010 CSV ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-4: GENERIC STANDARDS - EMISSION STANDARD FOR INDUSTRIAL ENVIRONMENTS
    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)
    EN 61000-6-1:2007 Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity for residential, commercial and light-industrial environments
    IEC 61869-3:2011 Instrument transformers - Part 3: Additional requirements for inductive voltage transformers
    EN 61000-6-3:2007/A1:2011/AC:2012 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-3: GENERIC STANDARDS - EMISSION STANDARD FOR RESIDENTIAL, COMMERCIAL AND LIGHT-INDUSTRIAL ENVIRONMENTS (IEC 61000-6-3:2006/A1:2010)
    IEC 61000-6-2:2016 Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity standard for industrial environments
    IEC 60044-2:1997+AMD1:2000+AMD2:2002 CSV Instrument transformers - Part 2 : Inductive voltage transformers
    EN 60255-151:2009 Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection
    IEC 60870-5-104:2006+AMD1:2016 CSV Telecontrol equipment and systems - Part 5-104: Transmission protocols - Network access for IEC 60870-5-101 using standardtransport profiles
    IEC 61000-6-1 : 3.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-1: GENERIC STANDARDS - IMMUNITY STANDARD FOR RESIDENTIAL, COMMERCIAL AND LIGHT-INDUSTRIAL ENVIRONMENTS
    EN 61869-3 : 2011 INSTRUMENT TRANSFORMERS - PART 3: ADDITIONAL REQUIREMENTS FOR INDUCTIVE VOLTAGE TRANSFORMERS (IEC 61869-3:2011)
    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 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
    EN 60870-5-101:2003/A1:2016 TELECONTROL EQUIPMENT AND SYSTEMS - PART 5-101: TRANSMISSION PROTOCOLS - COMPANION STANDARD FOR BASIC TELECONTROL TASKS
    EN 61850-7-4:2010 Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
    IEC 60870-5-101:2003+AMD1:2015 CSV Telecontrol equipment and systems - Part 5-101: Transmissionprotocols - Companion standard for basic telecontrol tasks
    EN 60870-5-104:2006/A1:2016 TELECONTROL EQUIPMENT AND SYSTEMS - PART 5-104: TRANSMISSION PROTOCOLS - NETWORK ACCESS FOR IEC 60870-5-101 USING STANDARD TRANSPORT PROFILES (IEC 60870-5-104:2006/A1:2016)
    EN 60255-127:2014 Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection
    IEC 61000-6-3:2006+AMD1:2010 CSV Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments
    EN 60044-7:2000 Instrument transformers - Part 7: Electronic voltage transformers
    EN 61000-6-2:2005/corrigendum:2005 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY FOR INDUSTRIAL ENVIRONMENTS (IEC 61000-6-2:2005)
    EN 61000-6-4:2007/A1:2011 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-4: GENERIC STANDARDS - EMISSION STANDARD FOR INDUSTRIAL ENVIRONMENTS
    IEC TR 61000-3-7:2008 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 61850-7-420:2009 Communication networks and systems for power utility automation - Part 7-420: Basic communication structure - Distributed energy resources logical nodes
    IEC 60255-127:2010 Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection
    EN 62109-1 : 2010 SAFETY OF POWER CONVERTERS FOR USE IN PHOTOVOLTAIC POWER SYSTEMS - PART 1: GENERAL REQUIREMENTS
    IEC 61000-6-1:2016 Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity standard for residential, commercial and light-industrial environments
    EN 61850-7-420:2009 Communication networks and systems for power utility automation - Part 7-420: Basic communication structure - Distributed energy resources logical nodes
    IEC 61850-7-4:2010 Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
    IEC 62109-2:2011 Safety of power converters for use in photovoltaic power systems - Part 2: Particular requirements for inverters
    IEC 60255-151:2009 Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection
    IEC 61000-6-4:2006+AMD1:2010 CSV Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission standard for industrial environments
    EN 62109-2:2011 Safety of power converters for use in photovoltaic power systems - Part 2: Particular requirements for inverters
    IEC TR 61850-90-7:2013 Communication networks and systems for power utility automation - Part 90-7: Object models for power converters in distributed energy resources (DER) systems
    IEC 62109-1:2010 Safety of power converters for use in photovoltaic power systems - Part 1: General requirements
    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
    IEC 61000-6-2 : 3.0:2016 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY STANDARD FOR INDUSTRIAL ENVIRONMENTS
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