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樓主  發(fā)表于: 2024-07-08 16:39
之前一個(gè)項目上有一臺500kw的電機,一開(kāi)始選定安川的變頻器,找供應商報價(jià)大概在20萬(wàn)左右,后來(lái)老板改用ct的,便宜很多,具體多少就不知道。

配線(xiàn)方面2*240做一相,現場(chǎng)也是配電房單獨出一組配電線(xiàn),配電房離現場(chǎng)大概280米左右,

在這種情況下,像這種大功率的電機使用那個(gè)電壓更好?690v電壓使用有什么需要注意事項?對比380v在成本方面會(huì )更低?包含配電線(xiàn)、變頻器、斷路器等設備上
tangjiezyc
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1樓  發(fā)表于: 2024-07-10 11:10
電壓高 電流小。線(xiàn)纜和接觸器開(kāi)關(guān)就小。但是要注意高電壓的產(chǎn)品,不常規也可能會(huì )貴很多...還有要考慮我們普通電工證能不能操作那么高的電壓作業(yè)...

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