钢厂35kV电弧炉系统操作过电压研究  

Switching Surge of 35kV Electric Furnace System in Steel Factory

作　　者：牛晓民[1] 王晓彤[1] 施围[1] 

机构地区：[1]西安交通大学

出　　处：《高电压技术》1997年第1期61-63,共3页High Voltage Engineering

摘　　要：研究了钢厂３５ｋＶ电弧炉系统由于真空开关的操作引起的截流和重燃过电压，利用增补了四星接法ＭＯＡ模型的电磁暂态计算程序ＥＭＴＰ计算了三星接法ＭＯＡ，四星接法ＭＯＡ对过电压，尤其是相间过电压的限制效果，对四星接法ＭＯＡ上部单元，下部单元的参数配合提出了建议。The overvoltage caused by vacuum switch operation of 35kV electric furnace system in steel factory is investigated. By using EMTP adding four branches star connection MOA module, the depression effect of three branches star connection MOA and four branches star connection MOA on chopping current overvoltage and restrike overvoltage, especially phase to phase overvoltage, is calculated. The coordination parameters of four branches star connection MOA is also studied.

关 键 词：炼钢厂 电弧炉 操作过电压 

分 类 号：TF748.41[冶金工程—钢铁冶金]