标准摘要
[中文适用范围]： 本标准适用于设计用于室内或室外安装的交流开关设备，用于在电压高于1000V的系统上以50Hz和60Hz的频率运行，并用于感性电流开关。它适用于用于开关高压电机电流和并联电抗器电流的开关设备（包括符合IEC 62271-100的断路器），以及用于开关高压电机电流的高压接触器，如IEC 62271-106所涵盖的。 空载变压器的开关，即断开变压器励磁电流，不在本文件中考虑。原因如下： a) 由于变压器铁芯的非线性，无法在测试实验室中使用线性组件正确模拟变压器励磁电流的开关。使用现有变压器（如测试变压器）进行的测试仅对所测试的变压器有效，不能代表其他变压器。 b) 如IEC TR 62271-306所述，此任务的特性通常比任何其他感性电流开关任务要轻。这种任务可能会在变压器绕组内产生严重的过电压，具体取决于开关设备的再点火行为和变压器绕组共振频率。 注1：从变压器高压侧开关三级电抗器不在本文件范围内。 注2：通过中性电抗器接地的并联电抗器的开关不在本文件范围内。然而，根据本文件的测试结果在开关中性电抗器接地电抗器（四腿电抗器方案）上的应用在IEC TR 62271-306中讨论。 [外文原描述]： IEC 62271-110:2023 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 62271-110:2023 is applicable to AC switching devices designed for indoor or outdoor installation, for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 1 000 V and applied for inductive current switching. It is applicable to switching devices (including circuit-breakers in accordance with IEC 62271-100) that are used to switch high‑voltage motor currents and shunt reactor currents and also to high-voltage contactors used to switch high-voltage motor currents as covered by IEC 62271-106. This fifth edition cancels and replaces the fourth edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: references to IEC 62271-100 and IEC 62271-106 have been updated to the latest editions.
英文名称High-voltage switchgear and controlgear - Part 110: Inductive load switching