高压开关设备和控制设备第109部分:交流电串联电容器旁路开关

[中文适用范围]： 本部分 IEC 62271 适用于设计用于户外安装并在电压高于 52 kV 的系统中以 50 Hz 和 60 Hz 频率运行的交流串联电容器旁路开关。 仅适用于三相系统中使用的旁路开关。 本文件也适用于旁路开关的操作装置及其辅助设备。 [外文原描述]： 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.