PTAI216
PTAI216
PTAI216
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福建光沃自動化設備有限公司
聯系人 ：歐工（銷售經理）
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有趣的事實還在于，對于直流電壓來說，電流越大，保險絲的熔斷表現就越關鍵。普通的集成式保險絲只能用在不超過4A額定的交/直流輸入環境下。若電流更大，150VDC以上的直流運行是不允許的。輸入為230VAC時，整流后的電壓已在320VDC左右，三相應用的變頻器中間電路電壓在360至900VDC之間，具體取決于源電壓。
該問題已被重視。在當前的UL安規文檔（實際應用指導手冊）中已經精確描述了能夠使用DC電壓輸入的電源的定義。其所使用的熔斷保險絲必須能夠及時熔斷短路電流和過載電流，否則電源所處的環境就會產生危險的高溫。
PULS普爾世可靠的解決方案
一臺適用于高壓直流電輸入的電源必須滿足以下兩點：
配備合適的輸入濾波器，能夠過濾對地的高共模電壓；
安裝的熔斷保險絲必須具備UL和IEC安規認證.
在15W到480W功率級別范圍內，PULS普爾世可提供豐富的電源產品，這其中也包括經驗證的允許直流輸入的可靠電源產品。這些電源無論是在電氣間隙及爬電距離的設計方面，還是在直流操作時的輸入保險絲選擇方面，均獲得了許可。
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