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如何選擇合適的密集型母線槽及電源配線系統

發布時間:2017-12-27

     如何選擇母線槽?

  一 、根據電流選擇:

  母線槽種類的選擇應遵循小電流(2000A以下)選用空氣式,大電流(2000A及以上)選用密集型。那么母線槽的電流該如何選擇呢?若電流等級太小,母線槽容易過載而發生故障,若電流等級太大,會造成造價提升。

  一般情況下,我們按照下面的公式計算母線槽的電流等級:

  Ie≥I= Ie——母線槽額定電流(A) I——用電設備組的工作電流(A) P——用電設備組的容量(W) U——用電設備組的額定電壓(V) COSΦ——功率因數(一般取0.85) 在實際工作中,我們也可利用經驗來選擇封閉式母線槽的規格,一般情況下“封閉式母線槽載流量”的數值為計算負荷數值的 2 倍。例如 P=500KW,可選擇1000A的封閉式母線槽。

  二、根據使用環境選擇:

  母線槽的選型通常從以下幾方面加以綜合考慮:消防要求,絕緣材料要阻燃、耐熱性能要好,在高溫下不釋放有毒氣體,結構上防止煙囪效應,應優先選擇密集絕緣母線槽,如選用空氣絕緣型,則需在線槽殼體內每單元設置阻火隔斷;對特別重要場所,為保證應急電源火情下維持工作,應選用耐火型槽。

  如何選擇合適的密集型母線槽電源配線系統

  集型母線槽的常見的應用是在多電機起動器控制面板。一個多電機控制面板可以利用一系列KTA7或KTC7電機控制器,無論是單獨或與接觸,使A型E / F起動器( CL7/CK7 ) 。緊湊型母線允許多個單位,而無需運行單獨的線連接到每個控制器電源接線。該KTA7或KTC7將被用來保護電動機負載,而KTU7將被用來保護非電動機負載(變壓器或加熱器) 。

上一篇:封閉母線槽的電力使用及適用范圍

下一篇:密集型母線槽生產過程的注意事項

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