利用L-C串联电路起动和切除交流大电机  

Start and Cut- off the Large AC Electric Machine with L-C Series Circuit

作　　者：魏明[1] 

机构地区：[1]山东建筑工程学院

出　　处：《大电机技术》1999年第4期34-35,共2页Large Electric Machine and Hydraulic Turbine

摘　　要：将Ｌ－Ｃ串联电路串联在交流大电机进线中，并和压敏电阻配合，可实现交流大电机的平衡降压起动，并在切除交流大电机时，起到了抑制对电网电压的冲击，减小拉弧电压，抑制高次谐波等作用。In order to realize balanced reduced-voltage start of the large AC electric machine, a L-C circuit was in series with the in-line of a large AC electric machine, and matched voltage sensitive resistor.As well it could suppress voltage surge on grid, reduce polar arc voltage and restrain the high harmonicetc. when we cut-off the large AC electric machine.

关 键 词：交流大电机 L-C串联电路 降压起动 冲击电流 

分 类 号：TM340.6[电气工程—电机]