大型发电机定子铁芯磁化试验

摘要

发电机在交接时或运行中,对铁芯绝缘有怀疑时,或铁芯重新组装或更换、修理硅钢片后,需要进行定子铁芯的磁化试验,以测定铁芯单位质量的损耗,铁芯轭部、齿部等各部温升是否超过规定值,从而综合判断铁芯片间的绝缘是否良好,判断铁芯的材料是否符合标准要求及铁芯的组装叠片质量是否合格.本文以某抽蓄机组立式发电电动机定子铁芯现场叠片后进行的铁芯磁化试验为例,介绍铁芯磁化试验的整个过程,试验数据的分析及试验注意事项.%When the generator stator core has insulation problems,need to do core magnetization test to check the Insulation between the laminations is good or not.In this paper,the core magnetization test of a pumped storage power generation units vertical motor stator core laminations after scene as an example,introduce the whole process of core magnetization test and how to analyze the test data.