标准摘要
[中文适用范围]： IEC 60034 的这一部分描述了用于对带有间接冷却和模绕绕组的交流或直流旋转电机中使用的绝缘系统进行分类的耐热试验程序。将候选绝缘系统的试验性能与具有可靠使用经验的参考绝缘系统的试验性能进行比较。IEC 60034-18-31 中描述的试验程序旨在比较导体和地之间的主壁绝缘的耐热性能，以及（如果线圈或线棒设计有要求）匝间绝缘的耐热性能。该试验并非用于模拟端部绕组支撑或支撑材料在使用过程中所经受的机械应力。它不包括对温度循环过程中绝缘膨胀和收缩造成的热机械劣化的评估。IEC 60034-18-1 描述了适用于旋转电机中使用的绝缘系统耐热试验的一般试验原则。除非 IEC60034-18-31 另有规定，否则将遵循 IEC 60034-18-1 的原则。绝缘系统的耐热等级是指其最大允许温度（“热点”）。根据 IEC 60034-1，运行中测量的平均温度不应超过允许的温升。 [外文原描述]： IEC 60034-18-31:2012 describes thermal endurance test procedures for classification of insulation systems used in a.c. or d.c. rotating electrical machines with indirect cooling and form-wound windings. These test procedures are intended to compare the thermal endurance performance of the mainwall insulation between conductor(s) and ground and, where required by the design of the coil or bar, the insulation between the turns. The main technical changes with regard to the previous edition include: - Definition of the test method and sub-cycles required to establish a consistent standardized platform for thermal ageing of insulation systems for form-wound windings. - Recommendations for establishing a thermal life curve based on confidence intervals. - Comparison of candidate and reference system performance for specific requirements of thermal class, within feasible limits. Keywords: rotating machinery, insulation systems
英文名称Rotating electrical machines - Part 18-31: Functional evaluation of insulation systems - Test procedures for form-wound windings - Thermal evaluation and classification of insulation systems used in rotating machines