旋转电机 第15部分：交流旋转电机成型定子线圈的冲击电压耐受水平

[中文适用范围]： IEC 60034-15:2025适用于连接至标准电网供电的、采用成型绕组定子线圈的交流电机。该标准规定了对样品线圈施加的测试程序和电压，以及对安装在定子铁芯中的线圈进行的常规测试。本文件的目的是展示定子绕组抵抗来自其所连接电网的电压瞬变的能力。附录A提供了更多信息。本文件的范围不包括由变频器供电的电机的定子绕组和线圈。由于测试难以确定匝间绝缘是否失效，因此本文件不适用于完整的绕组。本第四版取消并替换了2009年发布的第三版。本版构成技术修订。与前一版相比，本版包括以下重大技术变更：- 与IEEE Std 522TM [2]标准测试水平保持一致；- 引入增强的冲击电压耐受等级；- 引入测试至电气击穿点的选项；- 改进在振荡和过冲情况下记录的冲击波形的评估；- 指出变频器供电的电机被排除在本文件的适用范围之外；- 提供冲击测试执行的指导。 [外文原描述]： IEC 60034-15: 2025 relates to AC machines incorporating form-wound stator coils that are intended to be connected to a standard grid supply. It specifies the test procedures and voltages to be applied to sample coils, as well as routine tests performed on coils mounted in the stator core. The purpose of this document is to show the ability of a stator winding to resist voltage transients originating from the grid the machine is connected to. Annex A gives further information. The stator windings and coils for converter-fed machines are excluded from the scope of this document. This document is not intended for use on complete windings since it is difficult to determine when the turn insulation has failed due to the test. This fourth edition cancels and replaces the third edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - harmonize the standard test levels with IEEE Std 522TM [2]; - introduce an enhanced surge impulse voltage withstand level; - introduce the option to test up to the point of electrical breakdown; - improve the evaluation of the recorded impulses in case of oscillations and overshoot; - indicate that converter fed machines are excluded from the scope; - provide guidance on the execution of impulse tests.