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干式電流互感器

運行中電壓互感器的巡視檢查

發布日期:2022-04-18 點擊率:82

對運行中電壓互感器的巡視檢查的內容,通常有以下幾方面:

    (1)經常檢查一次側的熔斷器及限流電阻有無異常,各接頭有無松脫及放電現象。

    (2)經常檢查瓷套管有無污垢、裂紋及放電痕跡。一旦發現問題,應及時處理。

    (3)經常檢查電壓互感器的外殼有無滲油現象,油位是否符合要求,油色是否透明(不發黑)。

    (4)經常傾聽互感器本身工作時的聲音有無異常。

    (5)如發現互感器內部冒煙或放電時,應先進行必要的倒閘操作。移去負載,用斷路器將故障電壓互感器切除。

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