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配電柜

高低壓配電柜在變電站中的作用

發布日期:2022-10-16 點擊率:75

變電站是電力系統的中間環節,主要用作電能的變換和分配。變電站是由變壓器、高低壓配電柜和箱變殼體組成,安裝在一個防雨、防塵的鋼結構箱體內,機電一體化,全封閉運行。那么,高低壓配電柜在變電站中起著什么樣的作用呢?

變電站的主要作用是將高壓電變為低壓電,或者將低壓電升壓為高壓電,而與高壓相連接的位置就是高壓配電柜所在。高壓配電柜的主要作用是在高電壓、高電流、高發電弧等情況下,保障對線路的閉合和切斷。但一般情況下都會在高壓配電柜前面加裝一臺高壓隔離開關,用以保護高壓配電柜。

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低壓配電柜作為動力中心和主配電裝置,主要用作對電力線路、主要用電設備的控制、監視、測量與保護。當線路出現故障時,有利于控制故障范圍也方便快速找出故障點及時加以排除 ,無須大面積停電。

另外,配電柜內方便放置各種保護設備如防止短路的熔斷器(保險絲),防止過載的空氣開關等,可以對線路和用電設備起到保護作用。也方便維護、檢查。

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