摘要
针对湖南电网输电线路的冰冻灾害,提出了基于不可控整流的直流融冰技术,并研制了移动式直流融冰装置,可实现0～150km各种线型的输电线路融冰,解决了输电线路线型复杂、长度不等的融冰问题。移动式直流融冰装置对长沙向阳变电站110kV向黄I线进行了现场试验,该导线型号为LGJ-185,长度为12.626km,施加603A电流10分钟后,导线温度从-1℃上升到24.2℃。
To prevent the icing disaster on transmission line of Hunan Power Grid,the DC de-icing technology based on uncontrolled rectification was proposed,and mobile DC de-icing equipment was developed that can implement the de-icing of 0～150km various type of transmission lines and solve the de-icing difficulties of transmission lines in complex layout and in unequal length.Mobile DC de-icing equipment was field tested on the 110kV Xianghuang I transmission line of Changsha Xiangyang Transformer Substation.This line is type of LGJ-185 and 12.626km in length,and the line,s temperature rose from-1℃ to 24.2℃ after inputting current 603A for 10 minutes.
出处
《华中电力》
2011年第1期31-34,共4页
Central China Electric Power
关键词
输电线路
直流融冰
不可控整流
移动式装置
transmission line
DC de-icing
uncontrolled rectification
mobile equipment
