220kV沙尔沁-古城双线加装串联电抗器方案分析  

Scheme Analysis of Implanting Series Reactor in 220 kV Shaerqin-Gucheng Double-lines

作　　者：张爱军[1] 邓昆玲[1] 赵丽君[2] 孟庆天[1] 

机构地区：[1]内蒙古电力科学研究院,呼和浩特010020 [2]内蒙古电力勘测设计院有限责任公司,呼和浩特010020

出　　处：《内蒙古电力技术》2015年第6期7-10,共4页Inner Mongolia Electric Power

摘　　要：针对包头地区电网220 k V沙尔沁变电站220 k V母线三相短路电流值超过断路器额定开断电流值影响电网安全稳定运行的问题,提出在220 k V沙尔沁—古城双线(简称沁城双线)加装串联电抗器的方案,以解决三相短路电流超标问题。计算分析了在220 k V沁城双线加装不同电抗值的串联电抗器后对沙尔沁变电站220 k V母线三相短路电流的影响,最终推荐在220 k V沁城双线加装8Ω串联电抗器方案。采用该方案可将沙尔沁变电站220 k V母线三相短路电流值从51.992 kA降至46.8205 kA,满足电网安全运行的要求。At the Shaerqin 220 kV substation in Baotou, the 220 kV three-phase busbar short current exceeds the rated breaking current of breaker, affecting the stablity ofpower grid. The author proposed implanting series reactor in 220 k V double lines fromShaerqin to Gucheng（Qincheng double line for short） to solve that problem. After analyzingthe influence of different capacity of reactors to 220 k V bus bar three-phase short currentin Shaerqin, the author proposed a 8 Ω series reactor that could reduce three-phase busbar short current from 51.992 kA to 46.8205 kA, meeting the requirement of stability.

关 键 词：220 KV输电线路 三相短路电流 串联电抗器 

分 类 号：TM401.1[电气工程—电器]