Publication CODE |
Title |
IEC 62271-109:2019 (2019-04) |
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 109: ALTERNATING-CURRENT SERIES CAPACITOR BY-PASS SWITCHES |
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Price Excl. VAT |
Total number of pages, tables and drawings |
424.00 €
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276. |
Description
IEC 62271-109:2019 is available as IEC 62271-109:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the 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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Class |
C990
(IEC PUBLICATIONS IEC PUBLICATIONS)
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Committee |
TC 17/SC 17A
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR
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Responsible |
Ir DELENS Marc
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BEC Approval |
2019-04-08 |
ICS-Code (International Standards Classification) |
29.130.10
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NBN Status |
New |
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IEC publication date |
2019-04-08 |
IEC stability date |
2025-12-31 |
IEC file modification date |
2019-04-08 |
IEC last modification date |
2019-05-20 |
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