抽头式CO_2焊机主变压器输出电压和匝数的计算  

Calculation and application of rectified output voltage and tap loop numbers on the main transformer of the tap CO _2 gas shielded welder

作　　者：汤小红[1] 

机构地区：[1]中南林学院工业学院,湖南株洲412006

出　　处：《电焊机》2001年第7期20-22,共3页Electric Welding Machine

摘　　要：:通过对抽头式CO2 气保焊机焊接主变压器三相桥式整流输出电压的微积分计算 ,推导出了从三相平衡到三相不平衡转换时 ,三相桥式整流输出空载电压ΔUd0 变化量与二次侧电压幅值改变量ΔEm 之间的关系式 ,并由此计算一次侧线圈的抽头匝数变化量Δn1,为抽头式CO2 气保焊机焊接主变压器的设计及制造提供了一定的参考作用。By calculus calculation of 3 phases bridge rectified output voltage on the welding transformer of the tap CO 2 gas shielded welder,the relation formula between Δ U d0 and Δ E m is concluded from 3 phases balance to 3 phases unbalance.Here Δ U d0 is the variation of 3 phases bridge rectified output no load voltage,and Δ E m is the variation of the secondary voltage value. So the Δ n 1,which is the variation of the tap loop numbers of the primary coil, is calculated. It might be valuable for the designing and manufacturing of the welding main transformer of the tap CO 2 gas shielded welder .

关 键 词：抽头式 焊接主变压器 抽头线圈匝数 二氧化碳气体保护焊机 整流输出电压 

分 类 号：TG434.5[金属学及工艺—焊接]