老式电表可以做电焊机吗?在百度上查很多做电焊机的那老式电表,怎么我做不成功?

老式电表能做点焊机吗?
2025-03-14 04:46:25
推荐回答(4个)
回答1:

其实我不建议你把它改装为电焊机,这样安全性不够。真想做,我觉得话你还是看看视频,更可以清楚。具体如下,空载送电的电焊机,因其线圈线径粗、直流电阻极低、圈数少、矽钢片截面积大,所以可以近似理解为一个理想的纯电感,而电感的感生电势又正好与其输入电势滞后90°,这一自感电势在忽略其极小的损耗的情况下会明显的对其电网反向供电,一般称其为无功电流,在电力系统中,这种现象会大大降低电网的供电能力(在电动机很多的企业电力部门都要强制安装无功补偿设备)。现在做一假设,假使距电网变压器较远,而附近又有很多邻居在使用纯阻性负载或容性负载,那么这台空载送电的电焊机,就会优先反向为这些邻居们提供一定数量的电能,而使电度表出现反转现象,(有功电度表在过补偿的情况下就会倒转)希望能帮助你!

回答2:

没有科学依据,骗人的,我作了跟本都不通电!

回答3:

应该不可以的吧,好多都是在做秀,切不可模仿,这样会出现危险

回答4:

跟本就用不了不通电

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