标准摘要
[中文适用范围]： 本部分IEC 62271适用于设计用于室内和室外安装的交流高速接地开关（以下简称HSES），适用于额定电压550kV及以上、工作频率50Hz和60Hz的系统。 本文件描述的HSES旨在通过断路器清除输电线路上的故障后消除剩余的二次电弧。 有关HSES的更多详细信息，请参阅附录A。 [外文原描述]： IEC 62271-112:2021 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 62271-112:2021 applies to AC high-speed earthing switches (hereinafter termed HSES) designed for indoor and outdoor installation and for operation at service frequencies of 50 Hz and 60 Hz on systems having rated voltages of 550 kV and above. HSESs described in this document are intended to extinguish the secondary arc remaining after clearing faults on transmission lines by the circuit-breakers. For more detailed information on HSESs, refer to Annex A. This second edition cancels and replaces the first edition published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: The document has been updated to the second edition of IEC 62271-1:2017.
英文名称High-voltage switchgear and controlgear - Part 112: Alternating current high-speed earthing switches for secondary arc extinction on transmission lines