发电机机端PT高压侧熔断器“慢熔”现象的判断与对策  

Judgment and countermeasure of“slow melting”phenomenon of fuse at high voltage side of PT at generator terminal

作　　者：崔志坚 赵跃 张亮 宋明 胡琪龙 CUI Zhijian;ZHAO Yue;ZHANG Liang;SONG Ming;HU Qilong(CHN Energy Anhui Anqing Wonjoint Power Co.,Ltd,Anqing,Anhui 246008)

机构地区：[1]国家能源集团安徽安庆皖江发电有限责任公司,安徽安庆246008

出　　处：《电气技术》2021年第2期63-67,共5页Electrical Engineering

摘　　要：本文从某厂发生的发电机机端PT高压侧熔断器“慢熔”现象入手,详细分析了产生“慢熔”现象的原因以及“慢熔”对励磁系统、发电机保护和测量系统的影响,提出了高压侧熔断器“慢熔”现象的判断方法,并给出解决机端PT高压熔断器“慢熔”的三种方法。Based on the phenomenon of“slow melting”phenomenon of PT high-voltage side fuse in a factory,this paper analyzes the cause of“slow melting”phenomenon and the influence of“slow melting”on excitation system,generator protection and measurement system in detail,puts forward the judgment method of“slow melting”phenomenon of high-voltage side fuse,and sums up three methods to solve“slow melting”of PT high-voltage fuse at the end of the generator.

关 键 词：高压熔断器 慢熔 电晕腐蚀 自动电压调节器 发电机保护 测量系统 

分 类 号：TM31[电气工程—电机]