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上海人民電器廠分析繼電器和中間繼電器的區別

2020/8/10 15:07:20      點擊:
繼電器和中間繼電器的區別在哪?
繼電器是繼電器類的通用名稱.
中間繼電器:用于繼電保護與自動控制系統中,以增加觸點的數量及容量。
它用于在控制電路中傳遞中間信號。
中間繼電器的結構和原理與繼電器相同,與繼電器的主要區別在于:繼電器的觸頭可以通過電流有大的也有小的,而中間繼電器的觸頭只能通過小電流。所以,它只能用于控制電路中。 它沒有主觸頭和輔助觸頭之分的,因為過載能力比較小,所以它用的全部都是輔助觸頭,觸頭數量比較多。新國標對中間繼電器的定義是K,老國標是KA。一般是直流電源供電。少數使用交流供電
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