散文轉截自“空油壓(ya)機網(wang)”騰訊微信新聞媒體號，假如侵犯商標權請連接移除！

16㎡米通信高壓(ya)電(dian)纜(lan)還還能帶80A前后(hou)的感應電(dian)流大小，18.5KW無刷(shua)電(dian)機馬達(da)的額定感應電(dian)流大小只要有37A，咋(za)樣看16㎡米通信高壓(ya)電(dian)纜(lan)可還還能帶動(dong)18.5KW空油壓(ya)機的無刷(shua)電(dian)機馬達(da)了!

有時候誰也并沒有明白了(le)，空壓力機(ji)發調速(su)三相(xiang)異步(bu)電(dian)機(ji)相(xiang)繼的(de)燒掉，在(zai)最后檢驗后才看(kan)見，發調速(su)三相(xiang)異步(bu)電(dian)機(ji)的(de)相(xiang)輸(shu)出(chu)功(gong)率(lv)只能(neng)是340V，伴隨數據線厚度千米，數據線范(fan)圍越(yue)來越(yue)遠(yuan)以至(zhi)于的(de)相(xiang)輸(shu)出(chu)功(gong)率(lv)拉低，為了(le)把發調速(su)三相(xiang)異步(bu)電(dian)機(ji)燒壞。

馬達(da)的(de)電(dian)壓值減輕的(de)緣故

電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)降：是猶(you)豫高壓電(dian)(dian)(dian)(dian)(dian)(dian)線的(de)(de)距離較長(chang)，線徑過于小，高壓電(dian)(dian)(dian)(dian)(dian)(dian)線的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)阻功率(lv)減(jian)少，可以會造(zao)成的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)調低，馬(ma)達(da)的(de)(de)常(chang)見值(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)時間(jian)(jian)比(bi)率(lv)380V，能接受電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)浮(fu)動時間(jian)(jian)比(bi)率(lv)是不超出(chu)常(chang)見值(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)的(de)(de)5%，超出(chu)常(chang)見值(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)的(de)(de)10%，都要常(chang)見值(zhi)(zhi)(zhi)時間(jian)(jian)比(bi)率(lv)，380×5%=19V

工作電(dian)壓值(zhi)最低(di)普(pu)通(tong) 工作電(dian)壓值(zhi)，雖(sui)然(ran)不低(di)于19V就(jiu)(jiu)就(jiu)(jiu)能夠普(pu)通(tong) 配電(dian)，若是 低(di)于19V會對交流(liu)電(dian)動(dong)機容易造成受損還毀壞。

電阻值太(tai)低對伺服電機(ji)的(de)引響

交流(liu)(liu)(liu)(liu)電(dian)壓電(dian)流(liu)(liu)(liu)(liu)拉(la)低(di)直流(liu)(liu)(liu)(liu)無(wu)(wu)刷調(diao)速(su)三相異步電(dian)機的交流(liu)(liu)(liu)(liu)電(dian)會(hui)增(zeng)長，直流(liu)(liu)(liu)(liu)無(wu)(wu)刷調(diao)速(su)三相異步電(dian)機的線圈會(hui)產生熱量，當(dang)交流(liu)(liu)(liu)(liu)電(dian)壓電(dian)流(liu)(liu)(liu)(liu)拉(la)低(di)超過了10%，線圈長期(qi)(qi)限溫過高，會(hui)印象直流(liu)(liu)(liu)(liu)無(wu)(wu)刷調(diao)速(su)三相異步電(dian)機的選用(yong)生存期(qi)(qi)，嚴重(zhong)性語錄有有可能(neng)會(hui)燒毀電(dian)動(dong)四輪機。

電阻(zu)值降(jiang)咋(za)求算?

瞬時電流降(jiang)=電纜線利用的瞬時電流×電纜線的電阻器

電(dian)(dian)纜(lan)線(xian)(xian)經由的(de)電(dian)(dian)壓(ya)(ya)(ya)瞬(shun)時(shi)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)壓(ya)(ya)(ya)，只是 推(tui)動的(de)裝載(zai)都要(yao)的(de)電(dian)(dian)壓(ya)(ya)(ya)瞬(shun)時(shi)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)壓(ya)(ya)(ya)18.5KW電(dian)(dian)機(ji)馬達的(de)載(zai)荷(he)系數電(dian)(dian)壓(ya)(ya)(ya)瞬(shun)時(shi)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)壓(ya)(ya)(ya)是37A，那(nei)麼電(dian)(dian)纜(lan)線(xian)(xian)就都要(yao)經由37A的(de)電(dian)(dian)壓(ya)(ya)(ya)瞬(shun)時(shi)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)壓(ya)(ya)(ya)

接(jie)地線(xian)的電阻(zu)(zu)功率(lv)(lv)功率(lv)(lv)=接(jie)地線(xian)的間(jian)距×接(jie)地線(xian)的電阻(zu)(zu)功率(lv)(lv)功率(lv)(lv)率(lv)(lv)÷接(jie)地線(xian)的線(xian)徑

絕緣(yuan)線(xian)(xian)的電容率(lv)，電線(xian)(xian)為0.0175 鋁線(xian)(xian)為0.0283

假如(ru)：18.5KW三相異步電(dian)(dian)機配16電(dian)(dian)線(xian)拖鏈電(dian)(dian)纜(lan)，電(dian)(dian)線(xian)拖鏈電(dian)(dian)纜(lan)相距一千米，電(dian)(dian)壓降會(hui)大(da)大(da)減少有多少

高(gao)壓(ya)絕(jue)緣線的(de)內阻器(qi)=高(gao)壓(ya)絕(jue)緣線的(de)厚(hou)度1500米(mi)×高(gao)壓(ya)絕(jue)緣線的(de)內阻器(qi)率銅芯0.0175÷高(gao)壓(ya)絕(jue)緣線的(de)線徑16=1000×0.0175÷16=1.1Ω

絕(jue)緣(yuan)線(xian)上的直(zhi)流電壓=18.5×2=37A(來(lai)計算負(fu)載(zai)電阻直(zhi)流電壓假設按照(zhao)1KW功效為2A快(kuai)來(lai)計算)

相(xiang)電(dian)(dian)壓降=絞線上的電(dian)(dian)流值37A×絞線的電(dian)(dian)阻值1.1Ω=37×1.1=40.7V

也是18.5KW三相異(yi)步三相異(yi)步電(dian)(dian)(dian)機配16電(dian)(dian)(dian)力(li)通(tong)(tong)信電(dian)(dian)(dian)纜線，電(dian)(dian)(dian)力(li)通(tong)(tong)信電(dian)(dian)(dian)纜線距里(li)一千米，電(dian)(dian)(dian)阻(zu)(zu)值(zhi)會拉低41V，常見(jian)電(dian)(dian)(dian)阻(zu)(zu)值(zhi)380V-41V=339V，大(da)大(da)的(de)高出(chu)了(le)常見(jian)電(dian)(dian)(dian)阻(zu)(zu)值(zhi)的(de)空(kong)間這(zhe)些(xie)(xie)三相異(yi)步三相異(yi)步電(dian)(dian)(dian)機會損壞(huai)，這(zhe)些(xie)(xie)配值(zhi)電(dian)(dian)(dian)力(li)通(tong)(tong)信電(dian)(dian)(dian)纜線需要要加大(da)線徑(jing)，來減慢電(dian)(dian)(dian)阻(zu)(zu)值(zhi)降。

注意電(dian)壓電(dian)流降怎么樣增加電(dian)纜線?

銅絲的(de)(de)斷建筑(zhu)面積=(高(gao)壓(ya)接地線上(shang)的(de)(de)瞬(shun)時(shi)電(dian)流×高(gao)壓(ya)接地線的(de)(de)時(shi)長)÷(54.4×限制的(de)(de)電(dian)壓(ya)值振幅(fu)位置19V)

鋁線的斷大小=(絞線上的直流電×絞線的的長度)÷(34×允許的的電壓值變(bian)化範(fan)圍19V)

舉列：18.5KW無刷電機，拖鏈(lian)電纜(lan)(lan)線(xian)的長度一千米，配備什么拖鏈(lian)電纜(lan)(lan)線(xian)?

芯線載(zai)的(de)(de)(de)(de)面積=(接地線上的(de)(de)(de)(de)電壓37A×接地線的(de)(de)(de)(de)直徑一千米)÷(54.4×19V)=(37×1000)÷(54.4×19)=35.8電源線，也(ye)只是公司(si)要(yao)考慮不少于35.8的(de)(de)(de)(de)芯線高壓電纜。

鋁(lv)線受力積=(接(jie)地線上的(de)直流(liu)電(dian)(dian)壓37A×接(jie)地線的(de)長寬一(yi)千(qian)米(mi))÷(34×19V)=(37×1000)÷(34×19)=57.3家用電(dian)(dian)線，也就(jiu)會(hui)小(xiao)編要選擇(ze)不大于(yu)57.3的(de)鋁(lv)線線纜。

那么干電(dian)(dian)力設備話，己(ji)知根(gen)據(ju)(ju)額定功率，這(zhe)樣配(pei)值線纜，不(bu)僅(jin)僅(jin)要注(zhu)重(zhong)到根(gen)據(ju)(ju)的(de)直流電(dian)(dian)流，要注(zhu)重(zhong)到根(gen)據(ju)(ju)距過遠，而引發的(de)電(dian)(dian)流降的(de)印象!