• AS/NZS 61000.3.7:2001

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Electromagnetic compatibility (EMC) Limits - Assessment of emission limits for fluctuating loads in MV and HV power systems (IEC 61000-3-7:1996, MOD)

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  23-06-2021

    Language(s):  English

    Published date:  25-01-2001

    Publisher:  Standards Australia

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    Abstract - (Show below) - (Hide below)

    Proposes a set of principles which are intended to be used to determine the requirements for connecting large fluctuating loads (producing flicker) to public power systems. This Standard provides guidance on engineering practices which will ensure service quality for all connected consumers.

    Scope - (Show below) - (Hide below)

    This Standard outlines principles which are intended to be used as the basis for determining the requirements for connecting large fluctuating loads (producing flicker) to public power systems. The primary objective is to provide guidance for engineering practices which will ensure adequate service quality for all connected consumers. Since the guidelines outlined in this Standard are necessarily based on certain simplifying assumptions, there is no guarantee that this approach will always provide the optimum solution for all flicker problems. The recommended approach should be used with flexibility and judgement as far as engineering is concerned, when applying the given assessment procedures in full or in part. The final decision regarding the connection of fluctuating installations will always rest with the utility. Problems related to voltage fluctuations fall into two basic categories: – flicker effect from light sources; – risk of the voltage magnitude being outside accepted tolerances. This Standard primarily focuses on controlling or limiting flicker, but a clause is included to address voltage magnitude changes and their effects. Appendices A, B, C, D, E, F and G are for information only. NOTES 1 This Standard uses the following terms for system voltage: – low voltage (LV) refers to UN <= 1 kV;– medium voltage (MV) refers to 1 kV < UN <= 35 kV;– high voltage (HV) refers to 35 kV < UN <= 230 kV;– extra high voltage (EHV) refers to 230 kV < UN.In the context of this Standard, the function of the network is more important than its rated voltage. For example, a HV system used for distribution may be given a "planning level" (see clause 3) which is situated between those of MV and HV systems. 2 The “load” is to be understood as the complete consumer’s load. 3 A list of principal letter symbols, subscripts and symbols is given in appendix F.

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

    Committee EL-034
    Document Type Standard
    Publisher Standards Australia
    Status Superseded
    Superseded By
    Supersedes

    History - (Show below) - (Hide below)

    First published in Australia as AS 2279.4-1985.Second edition 1991.Jointly revised and redesignated as AS/NZS 61000.3.7:2001. First published in Australia as AS 2279.4-1985. Second edition 1991. Jointly revised and redesignated as AS/NZS 61000.3.7:2001.

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

    07/30164322 DC : 0 BS EN 61000-3-6 ED.2 - ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-6: ASSESSMENT OF HARMONIC EMISSION LIMITS FOR THE CONNECTION OF DISTORTING INSTALLATIONS TO MV, HV AND EHV POWER SYSTEMS
    AS/NZS 61000.3.5:1998 Electromagnetic compatibility (EMC) Limits - Limitation of voltage fluctuations and flicker in low-voltage power supply systems for equipment with rated current greater than 16 A
    AS/NZS 61000.3.3:1998 Electromagnetic compatibility (EMC) Limits - Limitation of voltage fluctuations and flicker in low-voltage supply systems for equipment with rated current less than or equal to 16 A
    AS/NZS 4376:1996 Flickermeter - Functional and design specifications

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    AS/NZS 61058.1:2008 Switches for appliances General requirements (IEC 61058-1, Ed. 3.1 (2000), MOD)
    SA/SNZ TR IEC 61000.3.14:2013 Electromagnetic compatibility (EMC) Limits - Assessment of emission limits for harmonics, interharmonics, voltage fluctuations and unbalance for the connection of disturbing installations to LV power systems
    AS 2703-2008 Vehicle loop detector sensors
    AS/NZS 4871.1:2010 Electrical equipment for mines and quarries General requirements
    AS 1418.1-2002 Cranes, hoists and winches General requirements
    AS 2067-2008 Substations and high voltage installations exceeding 1 kV a.c.
    AS 61800.3-2005 Adjustable speed electrical power drive systems EMC requirements and specific test methods
    AS/NZS 3439.1:2002 Low-voltage switchgear and controlgear assemblies Type-tested and partially type tested assemblies (IEC 60439-1:1999 MOD)
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