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  • CLC/TS 50549-1:2015

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    Requirements for generating plants to be connected in parallel with distribution networks - Part 1: Connection to a LV distribution network above 16 A

    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    Withdrawn date:  10-03-2023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) - Loss of Mains and overall
            power system security
    Annex C (informative) - Examples of protection strategies
    Annex D (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 LV distribution network and rated at more than 16 A per phase;-intended to operate in parallel with this distribution network under normal network operating conditions. NOTE 3Generating plants rated up to and including 16 A per phase are covered by EN 50438.NOTE 4Generating plants connected to a MV distribution network fall into the scope of CLC/TS 50549-2.Unless stated differently by the DSO generating plants connected to a medium voltage distribution network with a maximum apparent power up to 100 kVA can comply with this Technical Specification as alternative to the requirements of CLC/TS 50549-2. 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)

    IEC 62933-2-1:2017 Electrical energy storage (EES) systems - Part 2-1: Unit parameters and testing methods - General specification
    PD IEC/TS 62786:2017 Distributed energy resources connection with the grid
    BS EN 50465:2015 European product standard for combined heating power systems using gas fuel
    I.S. EN 50465:2015 GAS APPLIANCES - COMBINED HEAT AND POWER APPLIANCE OF NOMINAL HEAT INPUT INFERIOR OR EQUAL TO 70 KW
    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
    EN 50465 : 2015 GAS APPLIANCES - COMBINED HEAT AND POWER APPLIANCE OF NOMINAL HEAT INPUT INFERIOR OR EQUAL TO 70 KW
    EN 50465:2015 Gas appliances - Combined heat and power appliance of nominal heat input inferior or equal to 70 kW

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

    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 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
    EN 50438:2013 REQUIREMENTS FOR MICRO-GENERATING PLANTS TO BE CONNECTED IN PARALLEL WITH PUBLIC LOW-VOLTAGE DISTRIBUTION NETWORKS
    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
    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
    EN 61000-3-11:2000 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
    IEC 61000-6-1 : 3.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-1: GENERIC STANDARDS - IMMUNITY STANDARD FOR RESIDENTIAL, COMMERCIAL AND LIGHT-INDUSTRIAL ENVIRONMENTS
    IEC 61000-3-12:2011 Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and ≤ 75 A per phase
    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 60364-1:2005 Low-voltage electrical installations - Part 1: Fundamental principles, assessment of general characteristics, definitions
    EN 61000-2-2:2002/A1:2017 ELECTROMAGNETIC COMPATIBILITY (EMC) - ENVIRONMENT - COMPATIBILITY LEVELS FOR LOW-FREQUENCY CONDUCTED DISTURBANCES AND SIGNALLING IN PUBLIC LOW-VOLTAGE POWER SUPPLY SYSTEMS (IEC 61000-2-2:2002/A1:2017)
    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
    HD 60364-1:2008/A11:2017 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 1: FUNDAMENTAL PRINCIPLES, ASSESSMENT OF GENERAL CHARACTERISTICS, DEFINITIONS
    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 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
    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 61000-6-1:2016 Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity standard for residential, commercial and light-industrial environments
    IEC 61000-6-4:2006+AMD1:2010 CSV Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission standard for industrial environments
    EN 61000-3-12:2011 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-12: LIMITS - LIMITS FOR HARMONIC CURRENTS PRODUCED BY EQUIPMENT CONNECTED TO PUBLIC LOW-VOLTAGE SYSTEMS WITH INPUT CURRENT > 16 A AND <= 75 A PER PHASE (IEC 61000-3-12:2011)
    HD 60364-5-551:2010/A11:2016 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-55: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - OTHER EQUIPMENT - CLAUSE 551: LOW-VOLTAGE GENERATING SETS
    IEC 60364-5-55:2011+AMD1:2012+AMD2:2016 CSV Electrical installations of buildings - Part 5-55: Selection and erection of electrical equipment - Other equipment
    IEC 61000-6-2 : 3.0:2016 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY STANDARD FOR INDUSTRIAL ENVIRONMENTS
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