• IEC 62271-109:2019 RLV

    Current The latest, up-to-date edition.

    High-voltage switchgear and controlgear - Part 109: Alternating-current series capacitor by-pass switches

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

    Language(s):  English

    Published date:  08-04-2019

    Publisher:  International Electrotechnical Committee

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    Abstract - (Show below) - (Hide below)

    IEC 62271-109:2019 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

    IEC 62271-109:2019 is applicable to AC series capacitor by-pass switches designed for outdoor installation and for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 52 kV. It is only applicable to by-pass switches for use in three-phase systems. This document is also applicable to the operating devices of by-pass switches and to their auxiliary equipment. This third edition cancels and replaces the second edition published in 2008 and Amendment 1:2013. This edition constitutes a technical revision. This edition contains the following significant technical changes with respect to the previous edition:
    a) the document has been restructured according to edition 2.0 of IEC 62271-1;
    b) the rated voltage assignation across the by-pass switch has been aligned to the rule defined in IEC 60143-1;
    c) clarification has been given regarding rated continuous current of compensated and uncompensated line;
    d) some clarifications have been given following a loss of "suitable precautions";
    e) as per Amendment 2 of IEC 62271-100, the section "Rated time quantities" has been moved to Clause 6 under "Time quantities";
    f) as per Amendment 2 of IEC 62271-100, the section "Test for static mechanical loads" have been moved to Clause 6 under "Static mechanical loads";
    g) additional rules have been introduced for vacuum interrupters during impulse tests;
    h) additional clarifications have been given regarding the number of reduced impulses during impulse tests;
    i) a wider tolerance on the current damping during by-pass making current test-duty has been introduced.

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    Committee TC 17/SC 17A
    Document Type Redline
    Publisher International Electrotechnical Committee
    Status Current
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