标准摘要
[中文适用范围]： 本部分IEC 61558涉及通用小型电抗器的安全性。包含电子电路的小型电抗器也适用于本文件。 除非另有规定，从下文开始，术语变压器或电抗器均指小型电抗器。 本文件适用于固定或便携式、单相或多相、风冷（自然或强制）通用电抗器，包括交流、预磁化和电流补偿的独立或关联干式电抗器。绕组可以是封装或非封装的。 额定电源电压不超过1000V交流或1500V无纹波直流，额定电源频率和内部工作频率不超过1100MHz。 本文件可用于基频高于500Hz的电抗器（见附录BB）。 额定功率不超过： - 单相电抗器25kVAR交流（25kW直流） - 多相电抗器50kVAR交流（50kW直流） 在采购方与制造商达成协议的情况下，本文件对额定功率无限制的电抗器也适用。 本部分适用于干式电抗器。绕组可以是封装或非封装的。 本文件不适用于： - IEC 60289和IEC 60076-6覆盖的额定电压超过1000V的电抗器 - IEC 61347-2-8覆盖的管状荧光灯镇流器 - IEC 61347-2-9覆盖的放电灯（不包括管状荧光灯）镇流器 - IEC 60938系列覆盖的电磁干扰抑制固定电感器 [外文原描述]： IEC 61558-2-20:2022 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 61558-2-20:2022 deals with the safety of small reactors for general applications. Small reactors incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - adjustment of structure and references in accordance with IEC 61558-1:2017. - additional Annex AA with references for characteristic parameter measurements. - additional Annex BB for associated reactors with frequencies above 500 Hz. - additional Annex CC for partial discharge. It has the status of a group safety publication in accordance with IEC Guide 104 .
英文名称Safety of transformers, reactors, power supply units and combinations thereof - Part 2-20: Particular requirements and tests for small reactors