山東魯杯電阻器ZX15-200順著陶瓷管上旋狀牙溝纏繞

在電力設(shè)施中的應(yīng)用：

    1、陶瓷管型啟動式線繞電阻器將固定圈數(shù)成形于陶瓷管上，選擇適當(dāng)電阻合金線材，順著陶瓷管上旋狀牙溝纏繞，該啟動電阻器功率大且堅固，耐高溫、散熱性優(yōu)，電阻溫度系數(shù)小、呈直線變化，適合大電流做短時間過負載時使用，適用于電動機啟動、負載測試、產(chǎn)業(yè)機械、電力分配、儀器設(shè)備及自動控制裝置等

    2、電力鋁殼電阻器是彈簧合金電阻體與成形鋁殼的組合，將其經(jīng)高溫陽極處理后，再以特殊不燃性耐熱水泥充填固定，所以不怕外來的機械力量與塵埃環(huán)境。這種電阻器不但功率大而且堅固，耐振，散熱良好，電阻溫度系數(shù)小，呈直線變化，適用于產(chǎn)業(yè)機械、負載測試、電力分配、儀器設(shè)備及自動控制裝置等。

電阻器的選型

   1.在高增益放大電路中.應(yīng)選用噪聲電動勢小的電阻器，如金屬膜也阻器、碳膜電阻器和線繞電阻器。

   2.針對電路的工作頻率選用不同類堪的電阻器。線繞電阻器的分布參數(shù)較大，即使采用無感繞制的線繞電阻器，其分布參數(shù)也比非線繞電阻器大得多，因而線繞電阻不適合在高頻電路中工作。在低于50kHz 的電路中，由于電阻器的分布參數(shù)對電路工作影響不大，可選用線繞電阻器。

3.在高頻電路中的電阻器，要求其分布參數(shù)越小越好。所以，在高達數(shù)百兆赫的高頻電路中應(yīng)選用碳膜電阻器、金屬膜電阻器和金屬氧化膜電阻器。在超高頻電路中，應(yīng)選用超高頻碳膜電阻器。

電阻器的型號

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