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      1. 高壓隔離開關(guān)檢修

        2014/1/9 8:20:28      點擊:
        高壓隔離開關(guān)  連接板的連接點過熱變色,說明接觸不良,接觸電阻大,檢修時應(yīng)打開連接點,將接觸面銼平再用砂紙打光(但開關(guān)連接板上鍍的鋅不要去除),然后將螺釘擰緊,并要用彈簧墊片防松。動觸頭存在旁擊現(xiàn)象,可旋轉(zhuǎn)固定觸頭的螺釘,或稍微移動支持絕緣子的位置,以消除旁擊;三相不同期時,則可通過調(diào)整拉桿絕緣子兩端的螺釘,借以改變其有效長度來克服。
        觸頭間的接觸壓力可通過調(diào)整夾緊彈簧來實現(xiàn),而夾緊的程度可用塞尺來檢查。
        觸頭間一般可涂凡士林以減少摩擦阻力,延長使用壽命,還可防止觸頭氧化。
        隔離開關(guān)處于斷開位置時,觸頭間拉開的角度或拉開距離不符合規(guī)定時,應(yīng)通過拉桿絕緣子來調(diào)整。
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