数值模拟是分析和设计焊接变压器的有效手段，可作为进一步焊机优化设计的基础。
It shows that the numerical simulation is an effective method to analyze and design welding transformer. It is the base of optimization design of welding machine.
变压器：采用单相200kva真空环氧封装水冷式焊接变压器，占载率50%以上。
Transformers: it is used by water-cooled welding transformer with single-phase 200kva vacuum epoxy encapsulation. It accounts for more than 50% load.
此无效功率产生的磁场对诸如运行的焊接变压器和电机的感应电器设备来说是重要的。
This reactive power generates the magnetic fields which are essential for inductive electrical equipment such as the welding transformer and electric motors to operate.
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