发电机定子铁芯故障检测方法综述  

Review on Fault Detection Methods for Generator Stator Core

作　　者：陆轶 金森 Lu Yi;Jin Sen(Huaneng Shanghai Power Service Co.,Ltd.,Shanghai 200942,China;China Huaneng Group Co.,Ltd.,Beijing 100031,China)

机构地区：[1]华能(上海)电力检修有限责任公司,上海200942 [2]中国华能集团有限公司,北京100031

出　　处：《发电设备》2023年第5期287-292,共6页Power Equipment

摘　　要：结合实例对铁芯损耗试验和电磁铁芯故障检测仪(ELCID)试验进行系统对比,并且从技术、资源、成本等多维度进行分析。研究结果和实践经验表明:若铁芯无严重故障,ELCID试验与铁芯损耗试验的检测效果接近,同时在便捷程度、试验成本等方面具有优势;若确认铁芯存在缺陷,应进行铁芯损耗试验以彻底评估严重程度。建议结合发电机运行状态选择铁芯故障检测方法,研究结果为类似大型发电机定子铁芯故障检测方法和检修策略提供了有益参考。Systematic comparisons were conducted on core loss test and electro-magnetic core imperfection detector(ELCID)test with practical applications,and analyses were carried out from the aspects of technologies,resources and costs.Research results and practical experience show that,when the stator core does not have severe faults,ELCID test has the similar detective effect with core loss test,while has advantages in convenience and cost.When the stator core has confirmed faults,core loss test should be carried out to thoroughly evaluate the severity of the fault.It is suggested that the fault detection method of generator stator core should be selected through considering the operation of generator.Research results may serve as a beneficial reference for fault detection methods and strategies of stator core in similar large generators.

关 键 词：发电机 定子 铁芯 ELCID试验 铁芯损耗试验 

分 类 号：TM621.28[电气工程—电力系统及自动化]