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隔離開關

隔離開關的操作步驟

發布日期:2022-10-25 點擊率:461

    1)當隔離開關與斷路器、接地開關配合使用時,或隔離開關本身具有接地功能時,應有機械聯鎖或電氣聯鎖來保證正確的操作程序;

    2)合閘時,在確認斷路器等開關設備處于分閘位置上,才能合上隔離開關,合閘動作快結束時,用力不宜太大,避免發生沖擊;

    若單極隔離開關,合閘時應先合兩邊相,后合中間相;分閘時應先拉中間相,后拉兩邊相,操作時必須使用絕緣棒來操作;

    3)分閘時,在確認斷路器等開關設備處于分閘位置,應緩慢操作,待主刀開關離開靜觸點時迅速拉開。操作完畢后,應保證隔離開關處于斷開位置,并保持操作機構鎖牢;

    4)用隔離開關來切斷變壓器空載電流、架空線路和電纜的充電電流、環路電流和小負荷電流時,應迅速進行分閘操作,以達到快速有效的滅弧;

    5)送電時,應先合電源側的隔離開關,后合負荷側的隔離開關;斷電時,順序相反。

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