新的！IEC 60076-7:20 18作为IEC 60076-7:20 18 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 60076-7:20 18适用于矿物油浸式变压器。它描述了在各种环境温度和负载条件下运行对变压器寿命的影响。本文件从工作温度和热老化的角度为电力变压器的规格和负载提供了指导。它为高于铭牌额定值的负载提供了建议，并为规划者为新安装选择适当的额定量和负载条件提供了指导。与上一版相比，此版本包括以下重大技术变更:a)标题由“油浸式电力变压器”更新为“矿物油浸式变压器”； b)通过考虑最新的研究结果来更新绝缘寿命； c)已审查温度限制并推荐最高堆芯温度； d)推荐用于温升测试的光纤传感器数量； e)考虑Q、S和H因素； f)热模型以普遍适用的数学形式进行修正和重写； g)简要讨论了地磁感应电流并提出了相应的温度限制； h)进行了广泛的文献综述，并在参考书目中添加了许多参考文献。

NEW!IEC 60076-7:2018 is available as IEC 60076-7:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60076-7:2018 is applicable to mineral-oil-immersed transformers. It describes the effect of operation under various ambient temperatures and load conditions on transformer life. This document provides guidance for the specification and loading of power transformers from the point of view of operating temperatures and thermal ageing. It provides recommendations for loading above the nameplate rating and guidance for the planner to choose appropriate rated quantities and loading conditions for new installations. This edition includes the following significant technical changes with respect to the previous edition:
a) title has been updated from "oil-immersed power transformers" to "mineral-oil-immersed transformers";
b) insulation life is updated by considering latest research findings;
c) temperature limits have been reviewed and maximum core temperature is recommended;
d) number of fibre optic sensors is recommended for temperature rise test;
e) Q, S and H factors are considered;
f) thermal models are revised and rewritten in generally applicable mathematical form;
g) geomagnetic induced currents are briefly discussed and corresponding temperature limits are suggested;
h) extensive literature review has been performed and a number of references added to bibliography.