摘要
在单相晶闸管整流焊机中 ,并联带有交流和直流电感的整流支路 ,能把电流下限从 30A扩展到 5A左右。在小电流时 ,电弧能否引燃并连续燃烧的关键是使电流波形连续。
It can extend the minimum current of 30 A to about 5 A that a ancillary rectifier circuit parallelled in a single thyristor rectifier welder. Continuous current wave is necessary for arc ignition,the minimum inductance is equal to the inductance that make the lowest point of current wave just higher than zero.
出处
《电焊机》
2001年第11期31-32,共2页
Electric Welding Machine
