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                      首頁 > 新聞中心 > 綜合新聞

                      人工模擬強風及沿海環境下架空絕緣導線破壞試驗平臺投用

                      集成鹽霧強風污穢等災害環境,研究配電線路災損機理及防治技術

                              發布時間:2019-08-05        

                      7月31日,由福建電力科學研究院自主研制的人工模擬強風及沿海環境下架空絕緣導線破壞試驗平臺投入使用。該平臺可供技術人員開展沿海配網架空線路防災防腐綜合治理試驗研究,為沿海絕緣導線自燃事故高發區域提供新的導線選型依據,有利于提高配網供電可靠性。

                      針對福建沿海地區架空絕緣導線斷線情況多發問題,福建電科院依托國網福建省電力有限公司科技項目“強風及沿海環境下配電線路災損機理及防治技術研究”,研制了該平臺。這是國內首個將人工模擬的沿海鹽霧、強風、污穢等三大災害環境統一集成的試驗研究平臺,安裝了張緊、溫升、高壓、鹽霧、振動和控制采集等子系統,電壓可達20千伏,電流可達500安。

                      “福建是臺風頻繁登陸、活動范圍廣泛、受災影響區域較大的省份,強風導致架空導線斷線情況多發。同時,福建沿海歷來也是鹽霧重災區,大氣腐蝕處于最高等級。鹽霧長期積累在導線上,會產生放電影響,腐蝕架空導線。這個平臺可以模擬沿海配電線路的真實環境,我們同時組建了柔性攻關團隊開展試驗研究,以找到有效治理方法。”福建電科院技術人員韓紀層介紹,利用平臺可研究強風及沿海環境下配電線路災損機理及防治技術,10千伏架空絕緣導線的腐蝕斷線原因及機理,探究架空絕緣導線型號、絕緣子類型及導線固定方式對導線破壞機理的影響。

                      據介紹,為精準模擬福建沿海配電線路在強風、重鹽霧環境下的運行狀態,福建電科院技術攻關團隊在該平臺上安裝了升壓裝置模擬導線的高電壓狀態,安裝擺動裝置模擬強風環境,通過密閉鹽霧箱來模擬鹽霧環境。攻關團隊已經在架空絕緣導線與絕緣子的綁扎處涂覆高嶺土,模擬長期污穢條件下絕緣導線的運行情況,實時監測導線表面的泄漏電流。

                      目前,福建電科院技術攻關團隊已經設計出10千伏架空絕緣導線模擬試驗方案,并利用平臺成功模擬出污穢絕緣導線表面放電現象,下階段將進一步研究放電對絕緣導線表面燒蝕情況的影響、絕緣導線放電產生的必要條件及防治方法等。  

                      信息來源:國家電網報

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