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    September 18

    POWER ELECTRONICS AND DRIVES

    矽钢片
    降低磁滯效應的作法是目前廣為採用的約含
    3%矽的材料的矽鋼片鐵心,且另一方面,高導磁的材料通常其磁通飽和密度較低,但可藉由添加矽元來素提高磁通飽和密度。

    损耗
    漂游損主要是由於磁漏所致,所有的感應磁力線不可能都被侷限在鐵心中,因此磁漏會在繞組導體中產生渦流,形成損耗,降低漂游損的方式為加裝屏蔽遮罩

    降噪
    改善鐵心接縫與組裝 除了減少接縫之外,將鐵心的堆疊方式改以階梯搭接,也可以改善變壓器噪音。此外在鐵心組裝過程中,要注意勿使鐵心產生局部的應力存在,應使各部份的束縛力均勻化

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    佳运wrote:
    变压器专家~好orz
    Sept. 19

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