标准摘要
[中文适用范围]： 本国际标准适用于单相和三相油浸式电力变压器（包括自耦变压器），但 IEC 60076-1 范围内定义的某些小型和特殊变压器除外。它确定了变压器绕组的最高电压 Um 与相应的额定绝缘水平相关，并详细介绍了相关的适用介电测试以及套管带电部件与地电位物体之间的最小外部空气间隙。对于有自己的 IEC 标准的电力变压器和电抗器类别，本标准仅适用于其他标准交叉引用而特别引用的范围。 [外文原描述]： Gives insulation requirements for power transformers and the corresponding insulation tests for specific windings. Applies to single-phase and three-phase oil-immersed power transformers as defined in the IEC 60076-1. It Includes appendices on: partial discharge measurements during induced a.c. withstand voltage test on transformers; overvoltage transferred from a high-voltage winding to a low-voltage winding; information to be supplied with enquiries and orders. The contents of the corrigendum of December 2000 have been included in this copy.
英文名称Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air