工厂常用的电焊机有交流弧焊机、直流弧焊机和点焊机等。其中使用最广泛的是交流弧焊机。直流弧焊机与交流弧焊机相比,对三相电网来说负载均匀,可以改善功率因数。交流弧焊机是单相负载,会使三相电网的功率因数变坏。交流弧焊机为使焊接时的次级电流保持一定值,采用漏磁变压器方式,焊接电流 Commonly used welder factory AC arc welding machine, DC arc welding machine and spot welding and so on. One of the most widely used is the AC arc welding machine. DC arc welding machine and AC arc welding machine compared to three-phase power grid load, you can improve the power factor. AC arc welding machine is a single-phase load, the three-phase power grid will make the power factor worse. AC arc welding machine in order to maintain the secondary current welding a certain value, the use of leakage transformer method, the welding current