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IEC 62271-109 Ed. 3.0 b:2019

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

IEC 62271-109 Ed. 3.0 b:2019

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

PUBLISH DATE 2019
PAGES 280
IEC 62271-109 Ed. 3.0 b:2019
High-voltage switchgear and controlgear - Part 109: Alternating-current series capacitor by-pass switches
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.

SDO IEC: International Electrotechnical Commission
Document Number IEC 62271
Publication Date April 1, 2019
Language b - English & French
Page Count 280
Revision Level 3.0
Supercedes
Committee 17A
Publish Date Document Id Type View
Not Available Revision
Not Available Revision
Not Available Revision
April 1, 2019 Revision
April 1, 2019 IEC 62271-109 Ed. 3.0 b:2019 Revision