大型发电机耐电压试验时的绕组温升现象  

Temperature Rise in Windings of Large Generator During Voltage Withstand Test

作　　者：李海军 满宇光[2] 陈阳[3] 孙永鑫 张斯翔 罗代军 LI Haijun;MAN Yuguang;CHEN Yang;SUN Yongxin;ZHANG Sixiang;LUO Daijun(China Three Gorges Construction Engineering Corporation,Chengdu 610095,China;Harbin Electric Corporation Harbin Electric Machinery Co.,Ltd.,Harbin 150040,China;Harbin Institute of Large Electrical Machinery Co.,Ltd.,Harbin 150040,China;State Key Laboratory of Hydro-Power Equipment,Harbin 150040,China)

机构地区：[1]中国三峡建工(集团)有限公司,成都610095 [2]哈尔滨电气集团哈尔滨电机厂有限责任公司,哈尔滨150040 [3]哈尔滨大电机研究所有限公司,哈尔滨150040 [4]水力发电设备全国重点实验室,哈尔滨150040

出　　处：《大电机技术》2024年第4期81-88,共8页Large Electric Machine and Hydraulic Turbine

基　　金：中国长江三峡集团有限公司科研项目资助(JGJD030221003)。

摘　　要：本文列举了大型发电机线棒在交流耐电压试验过程中的典型温度数据,对试验过程中的温升现象进行了简要的介绍和分析,通过对温升现象影响因素的阐述,解释了工程实践中经常遇到的问题。目前国内外电机制造企业在制造和安装过程中对线棒耐电压试验产生的温升没有明确的限值规定,作者在大量经验数据的基础上,给出了温升范围的技术性建议,为工程人员提供了参考。This paper briefly introduces and analyzes the temperature rise phenomenon of the stator bar(winding)during the voltage withstand test of large generator,and lists the temperature rise data of the stator of typical products.Through the explanation of the influence factors of temperature rise,the problems often encountered in engineering practice are explained.At present,there is no definite limit for the temperature rise caused by stator bar voltage withstand test in the process of manufacturing and installation in domestic and foreign motor manufacturing enterprises.Based on a large number of empirical data,the author gives technical suggestions on the range of temperature rise,which can be used for reference for engineers.

关 键 词：定子绕组 防晕系统 耐电压试验 温升 

分 类 号：TM303.1[电气工程—电机]