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      1. 高壓真空斷路器開關設備

        2014/1/3 8:20:18      點擊:
        高壓真空斷路器 開關設備介紹

        “開關柜”是一種電設備,外線先進入柜內(nèi)主控開關,然后進入分控開關,各分路按其需要設置。如儀表,自控,電動機磁力開關,各種交流接觸器等,有的還設高壓室與低壓室開關柜,設有高壓母線,如發(fā)電廠等,有的還設有為保主要設備的低周減載
        分類

        1、低壓抽出式開關柜
        2、交流低壓
        3、金屬鎧裝移開式開關柜
        4、低壓固定分隔式開關柜
        5、高壓電容器柜
        6、高壓開關柜
        7、中壓真空環(huán)網(wǎng)柜
        相關標準

        SJ/T 31401-1994|高壓開關柜完好要求和檢查評定方法
        DL/T 791-2001|戶內(nèi)交流充氣式開關柜選用導則
        DL 404-1991|戶內(nèi)交流高壓開關柜訂貨技術條件
        DL/T 404-1997|戶內(nèi)交流高壓開關柜訂貨技術條件
        DL/T 539-1993|戶內(nèi)交流高壓開關柜和元部件 凝露及污穢試驗技術條件
        TB/T 2010-1987|27.5kV交流電氣化鐵道開關柜技術條件
        DL/T 404-2005|戶內(nèi)交流高壓開關柜訂貨技術條件
        維護

        對真空斷路器應該每年進行一次停電檢查維護,以保證正常運行。檢查應做好如下方面的工作:
        a)對管子進行斷口工頻耐壓試驗,測試真空度并記錄在冊。
        b)對絕緣件進行工頻耐壓試驗。
        c)測試斷路器的開距、接觸行程和機械特性,并記錄在冊。
        d)對各連接件的可調整處的連接螺栓、螺母等應檢查是否有松動,特別是輔助開關拐臂處的連接小螺釘,真空管動導電桿連接的鎖緊螺母等。
        e)對各轉動關節(jié)處應檢查各種卡簧,銷子等是否松脫;并對各轉動、滑動部分加潤滑油膏。
        f)對使用在電流大于1 600 A以上的真空斷路器,應對每極作直流電阻測試并記錄在冊。
        g)如需更換管子應按產(chǎn)品說明書的要求進行,更換后應進行機械特性的測試和耐壓試驗。
        h)年檢后和投運前應連續(xù)空載操作8~10次,一切正常方可投運。[3]
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