線圈額定電壓的選擇 線圈額定電壓不一定等于主觸頭的額定電壓,當(dāng)線路簡單,使用電器少時(shí),可直接選用380V或220V的電壓,如線路復(fù)雜,使用電器超過5h,可用24V、48V或110V電壓(1964年規(guī)定為36V、110V、或127V)的線圈.
3拍合式器
拍合式器主要應(yīng)用在鋼鐵工業(yè)，如：牽引機(jī)、電解和起重設(shè)備，電流從63A 至 5000A。
產(chǎn)品概述 R 系列器在一個(gè)主框架上構(gòu)造，支持電磁特性、主極和輔助觸頭。此設(shè)計(jì)為器的制作帶來很大的靈活性，有如定制的器般靈活： 可按需求改變極數(shù) 帶 / 不帶排氣線圈的極，額定電流流過每一極 常開極 當(dāng)常閉極與常開極結(jié)合使用時(shí)，可設(shè)置 '先合后分' 或 '先分后合' 大量、定時(shí)、可調(diào)的常開和常閉輔助觸頭 帶特殊特性的電磁特性由控制供電電壓和應(yīng)用特性決定
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