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    上海人民電氣有限公司介紹繼電器和接觸器的區(qū)別

    2020/10/28 14:00:09      點(diǎn)擊:

    繼電器和接觸器的主要區(qū)別有哪些?

    繼電器的主要作用則是起信號(hào)檢測(cè)、傳遞、變換或處理用的,它通斷的電路電流通常較小,即一般用在控制電路(與“主電路”對(duì)比)。

    接觸器主要作用是用來(lái)接通或斷開主電路的。所謂主電路是指一個(gè)電路工作與否是由該電路是否接通為標(biāo)志。主電路概念與控制電路相對(duì)應(yīng)。一般主電路通過(guò)的電流比控制電路大。因此,就如一樓的朋友說(shuō)的,容量大的接觸器一般都帶有滅弧罩(因?yàn)榇箅娏鲾嚅_會(huì)產(chǎn)生電弧,不采用滅弧罩滅弧,將燒壞觸頭)。
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