| 变压器铁芯的作用 |
| 添加时间：2017/7/26 17:31:34 浏览次数： |
| 变压器是根据电磁感应的原理制成的.在在闭合的铁芯柱上面绕有两个绕组,一个原绕组,和一个副绕组.当原绕组加上交流电源电压时.原饶组流有交变电流,而建立磁势,在磁势的作用下铁芯中便产生交变主磁通,主磁通在铁芯中同时穿过,{交链]一.二次绕组而闭合由于电磁感应作用分别在一、二次绕组产生感应电动势，至于为什么它可以升压和降压呢？那就需要用楞次定律来解释了，感应电流产生的磁通，总阻碍原磁通的变化，当原磁通增加时感应电流的产生的磁通与与原磁通相反, 就是说二次绕组所产生 的感应磁通与原绕组所产生的主磁通相反，所以二次绕组就出现了低等级的交变电压所以铁芯是变压器的磁路部，绕组是变压器的电路部分. Transformer is made according to the principle of electromagnetic induction. In the above the core column of the closed around have two windings, a primary winding, and a pair of winding. When the original winding coupled with ac power supply voltage. The original rao group has alternating current flow, and establish a magnetic potential, in under the action of magnetic potential core to produce alternating magnetic flux, the main magnetic flux in core at the same time through the {chain] 1. The secondary windings and closed due to electromagnetic induction effect respectively in the primary and secondary windings produce inductive electromotive force, as to why it can step-up and step-down? That will need to be explained by lenz's law, the flux produced by the induced current, always hinder the change of the original magnetic flux, when the original magnetic flux increase flux produced by the induction current and contrary to the original magnetic flux, that is produced by the secondary winding induction magnetic flux and the original winding on the contrary, produced by the main magnetic flux are so low level in the secondary winding of alternating voltage is so iron core transformer magnetic circuit, winding is the circuit part of the transformer. |
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