电力变压器绝缘材料寿命与热点温升限值的研究  

Research on the Insulation Life and Hot-spot Winding Temperature Limit of Power Transformer

作　　者：徐莲环 韩克俊 张志强 武目浩 邹方远 丁守涛 XU Lian-huan;HAN Ke-jun;ZHANG Zhi-qiang;WU Mu-hao;ZOU Fang-yuan;DING Shou-tao(Shandong Power Equipment Co.,Ltd.,Jinan 250011,China;Shandong Electrical Engineering&Equipment Group Co.,Ltd,Jinan 250000,China)

机构地区：[1]山东电力设备有限公司,山东济南250011 [2]山东电工电气集团有限公司,山东济南250000

出　　处：《变压器》2021年第10期1-3,共3页Transformer

摘　　要：通过给出GB/IEC以及IEEE标准中温升限值,对温升限值的环境条件进行了比较。通过研究绝缘纸的绝缘寿命,明确热点温升限值的意义,分析了热点温升限值差异的原因,并对使用IEEE标准的产品的绝缘纸的选择给出建议。By giving GB/IEC/IEEE standard temperature rise limit, the environmental conditions of temperature rise limits were compared. The insulation life of insulating paper was studied. The significance of limit of hot-spot temperature rise is clarified. The reason for difference of the limit value of hot-spot-temperature rise is analyzed. Finally, the insulation paper selection of products using IEEE standard is suggested.

关 键 词：电力变压器 温升限值 绕组热点温升 绝缘寿命 

分 类 号：TM401.1[电气工程—电器]