摘要
介绍了以柴 (汽 )油机作为动力的具有交流发电和直流弧焊 2种功能的发电机组。采用三次谐波励磁的同步发电机 ,通过AVR电路产生稳定的 380V三相交流电 ,可以带动打磨机、空气压缩机等功率较大的电动工具 ;由单相焊接绕组提供MMA(手弧焊 )电源 ,通过专门的弧焊控制电路获得满意的弧焊电源外特性 ,使引弧容易 ,焊接过程稳定。可应用于油气管道、铁路。
This article introduces an AC generating DC arc welding dual use machine driven by diesel, which adopts a triple frequency harmonic excited synchronous generator. It can generate a steady 380 V three phase alternating current through an AVR circuit, and can drive heavy electric tools such as polisher, air compressor and so on. It also provides a MMA power with a single phase winding.The ideal arc welding characteristic can be obtained through a special control circuit, which makes arc ignition easily and welding process stably. It can be applied to the welding in the field such as for welding of the pipeline,the railway,the bridge and so on.
出处
《电焊机》
2001年第11期25-27,共3页
Electric Welding Machine
关键词
发电机
电弧焊
空载电压
下降外特性
交流发电
generator
arc welding
open circuit voltage
fall volt ampere characteristic
