电力变压器第11部分:干式变压器

[中文适用范围]： 本部分 IEC 60076 适用于最高设备电压值不超过3672.5 kV且至少有一个绕组工作电压大于1.1 kV的干式电力变压器（包括自耦变压器）。本标准适用于所有结构技术。 本文件不适用于： - 气体填充的干式变压器（气体不是空气）； - 额定容量小于5 kVA的单相变压器； - 额定容量小于15 kVA的多相变压器； - 仪表变压器（见IEC 60044和IEC 60186）； - 启动变压器； - 测试变压器； - 安装在机车上的牵引变压器； - 防爆和矿用变压器； - 焊接变压器； - 电压调节变压器； - 安全性是特殊考虑因素的小型电力变压器。 对于上述未提及的变压器或其他特殊变压器，如果没有相应的IEC标准，本文件可以整体或部分适用。 [外文原描述]： IEC 60076-11:2018 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 60076-11:2018 applies to dry-type power transformers (including auto-transformers) having values of highest voltage for equipment up to and including 72,5 kV and at least one winding operating at greater than 1,1 kV. This document does not apply to: - gas-filled dry-type transformers where the gas is not air; - single-phase transformers rated at less than 5 kVA; - polyphase transformers rated at less than 15 kVA; - instrument transformers; - starting transformers; - testing transformers; - traction transformers mounted on rolling stock; - flameproof and mining transformers; - welding transformers; - voltage regulating transformers; - small power transformers in which safety is a special consideration. Where IEC standards do not exist for the transformers mentioned above or for other special transformers, this document may be applicable as a whole or in parts. This second edition cancels and replaces the first edition published in 2004 and constitutes a technical revision. The main changes with regard to the previous edition are as follows: - Extension of the scope up to 72,5kV - Enclosure management in regards of the performance - Management of the dielectric and thermal features with altitude - New climatic classes for a better adaptation of customers’ need - Establishment of the relation between location and environmental classes - For fire behaviour classes, limitation at 1000kVA and process of test more robust - Introduction of Seismic class - Recommendations for amorphous transformers Keywords: dry-type transformers The contents of the corrigendum of March 2019 and the Interpretation sheet 1 of July 2020 have been included in this copy.