电力变压器 第11部分：干式变压器

[中文适用范围]： IEC 60076 的这一部分适用于干式电力变压器（包括自耦变压器），设备最高电压值高达 72.5 kV（含），且至少一个绕组工作电压高于 1.1 kV。本文件不适用于： 气体不是空气的充气干式变压器；额定功率小于5kVA的单相变压器；额定功率小于 15 kVA 的多相变压器；互感器；启动变压器；测试变压器；安装在机车车辆上的牵引变压器；隔爆型、矿用变压器；焊接变压器；调压变压器；小型电力变压器，其中安全性是特别考虑的因素。如果上述变压器或其他特殊变压器不存在 IEC 标准，则本文件可全部或部分适用。 [外文原描述]： 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.