提高电焊机功率因数的方法  

Method of Increasing Power Factor of AC Electric Welding Machine

作　　者：沈淑红[1] 甘丽[1] 

机构地区：[1]唐山学院,河北唐山063000

出　　处：《煤矿机械》2007年第4期186-188,共3页Coal Mine Machinery

摘　　要：介绍了一种解决普通手工交流电焊机功率因数偏低及耗能严重现象的方法。阐述了利用电抗绕组的电抗来克服电焊机本身绕组电抗的结构设计原理和接线工作原理,使交流弧焊机电弧稳定,克服了争嘴现象,也克服了现有动圈式交流弧焊机的重心偏高,不利于搬运的缺点。经此改进后的交流电焊机功率因数已提高到0.65以上,甚至更高,节能效果显著。A method which can increase power factor and decrease energy consumption of common manual AC electric welding machine is presented. The framework design and wire connection theories by using the reactance of reactive coil to get over the reactance of the welding machine itself are expatiated. According to this method,the stability can be improved and high barycenter can be debased of the existing welding machine. Based on this method,the powerfactorhas have been increased to 0.65 and energies are prominently saved.

关 键 词：电焊机 功率因数 电抗 节能 

分 类 号：TM714.1[电气工程—电力系统及自动化]