• I.S. EN 60909-0:2016

    Current The latest, up-to-date edition.

    SHORT-CIRCUIT CURRENTS IN THREE-PHASE A.C. SYSTEMS - PART 0: CALCULATION OF CURRENTS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2016

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

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

    National Foreword
    FOREWORD
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Symbols, subscripts and superscripts
    5 Characteristics of short-circuit currents: calculating
       method
    6 Short-circuit impedances of electrical equipment
    7 Calculation of initial short-circuit current
    8 Calculation of peak short-circuit current
    9 Calculation of symmetrical breaking current
    10 DC component of the short-circuit current
    11 Calculation of steady-state short-circuit current
    12 Short circuits at the low-voltage side of transformers,
       if one line conductor is interrupted at the high-voltage
       side
    13 Terminal short circuit of asynchronous motors
    14 Joule integral and thermal equivalent short-circuit
       current
    Annex A (normative) - Formulas for the calculation of the
            factors m and n
    Annex B (informative) - Nodal admittance and nodal
            impedance matrices
    Bibliography
    Annex ZA (normative) - Normative references to
             international publications with their
             corresponding European publications

    Abstract - (Show below) - (Hide below)

    Pertains to the calculation of short-circuit currents - in low-voltage three-phase AC systems, and - in high-voltage three-phase AC systems, operating at a nominal frequency of 50 Hz or 60 Hz.

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

    Development Note For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current

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

    IEC 60038:2009 IEC standard voltages
    IEC 60050-131:2002 International Electrotechnical Vocabulary (IEV) - Part 131: Circuit theory
    IEC 60986:2000+AMD1:2008 CSV Short-circuit temperature limits of electric cables with rated voltages from 6 kV (Um = 7,2 kV) up to 30 kV (Um = 36 kV)
    IEC 60050-195:1998 International Electrotechnical Vocabulary (IEV) - Part 195: Earthing and protection against electric shock
    EN 60909-3:2010 Short-circuit currents in three-phase a.c systems - Part 3: Currents during two separate simultaneous line-to-earth short-circuits and partial short-circuit currents flowing through earth
    IEC TR 60909-1:2002 Short-circuit currents in three-phase a.c. systems - Part 1: Factors for the calculation of short-circuit currents according to IEC 60909-0
    IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
    IEC 60909-3 : 3.0 SHORT-CIRCUIT CURRENTS IN THREE-PHASE AC SYSTEMS - PART 3: CURRENTS DURING TWO SEPARATE SIMULTANEOUS LINE-TO-EARTH SHORT CIRCUITS AND PARTIAL SHORT-CIRCUIT CURRENTS FLOWING THROUGH EARTH
    IEC 60949:1988 Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects
    IEC 60865-1:2011 Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
    IEC TR 60909-4:2000 Short-circuit currents in three-phase a.c. systems - Part 4: Examples for the calculation of short-circuit currents
    IEC 62428:2008 Electric power engineering - Modal components in three-phase a.c. systems - Quantities and transformations
    EN 60038 : 2011 CENELEC STANDARD VOLTAGES (IEC 60038:2009, MODIFIED)
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