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zhgjxccbt
學(xué)習是永恒的主題,奮斗是終生的信念!
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樓主  發(fā)表于: 2012-07-21 20:31
國產(chǎn)低壓電器哪一款比較好   ( 正泰電氣  人民電氣   天正電氣   德力西電氣  )  
hexiangjiang
xiangjiang
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1樓  發(fā)表于: 2012-07-22 01:26
正泰電氣較好,空氣開(kāi)關(guān)質(zhì)量比abb西門(mén)子等等要好,關(guān)鍵是選則電流,電流選電機額定電流的1.5-1.6左右,一般abb西門(mén)子施耐德過(guò)流后就燒壞了。而切無(wú)法恢復。但國產(chǎn)的一般不會(huì )壞,大該是施合中國國情吧,

(但電機在接觸器合上時(shí)不能合空氣開(kāi)關(guān)。機械故障未排除也不能空氣開(kāi)關(guān)。)操作不當外星人做的開(kāi)關(guān)也會(huì )壞。

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