PTAI216

PTAI216

PTAI216

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福建光沃自動化設(shè)備有限公司       
聯(lián)系人    ：歐工（銷售經(jīng)理）                                         
手機      ：18030229053
電話      ：0592-5709825
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信用=財富  誠信=財富  共贏=財富

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(xiàn)就越關(guān)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(huán)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(yīng)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(dāng)前的UL安規(guī)文檔（實際應(yīng)用指導(dǎo)手冊）中已經(jīng)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(huán)境就會產(chǎn)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(guī)認(rèn)證.

在15W到480W功率級別范圍內(nèi)，PULS普爾世可提供豐富的電源產(chǎn)品，這其中也包括經(jīng)驗證的允許直流輸入的可靠電源產(chǎn)品。這些電源無論是在電氣間隙及爬電距離的設(shè)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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