內容男模博客(ke)自“空油(you)壓(ya)機網(wang)”電腦微信群(qun)眾號，以免(mian)侵(qin)權商標請聯(lian)系起來(lai)刪了！

16mm2電(dian)力(li)拖鏈(lian)電(dian)纜能帶80A前后的(de)(de)直(zhi)(zhi)流電(dian)，18.5KW電(dian)動(dong)機的(de)(de)載荷系數直(zhi)(zhi)流電(dian)也只(zhi)有37A，都看16mm2電(dian)力(li)拖鏈(lian)電(dian)纜足能帶動(dong)18.5KW空液壓機的(de)(de)電(dian)動(dong)機了!

而(er)且誰也沒(mei)能會想(xiang)到(dao)，空油壓(ya)機伺(si)(si)服同步(bu)(bu)交流(liu)電(dian)(dian)動(dong)機早晚(wan)都會的(de)損(sun)壞(huai)，在最后撿查后才發(fa)覺(jue)，伺(si)(si)服同步(bu)(bu)交流(liu)電(dian)(dian)動(dong)機的(de)相直流(liu)電(dian)(dian)壓(ya)就只有(you)340V，由電(dian)(dian)覽間(jian)距(ju)一千米，電(dian)(dian)覽相距(ju)越來越遠誘發(fa)的(de)相直流(liu)電(dian)(dian)壓(ya)影(ying)響(xiang)，所(suo)以把(ba)伺(si)(si)服同步(bu)(bu)交流(liu)電(dian)(dian)動(dong)機損(sun)壞(huai)。

高(gao)壓電(dian)(dian)機的工作電(dian)(dian)壓大幅度降低的原由

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)降：是仍然電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)覽距離感內容過(guo)(guo)長，線徑小了(le)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)覽的(de)(de)內阻增多，然后形成的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)下(xia)降，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機馬達的(de)(de)一(yi)(yi)般電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)標準380V，合法(fa)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)浮動標準是底于(yu)一(yi)(yi)般電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)5%，如果超過(guo)(guo)一(yi)(yi)般電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)10%，有(you)的(de)(de)是一(yi)(yi)般標準，380×5%=19V

電流值少于很正確電流值，因(yin)為不增(zeng)加(jia)19V就就可以很正確配電，假若(ruo)增(zeng)加(jia)19V還會對變頻電動機構成搞壞有的損毀。

的電壓(ya)太(tai)低對(dui)主軸電機的影晌

輸出功(gong)率降(jiang)減(jian)速機(ji)的(de)電(dian)流值(zhi)會(hui)提高，減(jian)速機(ji)的(de)減(jian)速機(ji)定子會(hui)發熱(re)的(de)原因，當輸出功(gong)率降(jiang)少(shao)于10%，減(jian)速機(ji)定子長時刻溫濕度過高，會(hui)后果減(jian)速機(ji)的(de)食用期，較為嚴重話有能夠會(hui)短路直流電(dian)思想(xiang)。

輸出功率降怎末計算公式?

線(xian)(xian)電(dian)(dian)壓降=絕緣線(xian)(xian)能(neng)夠的瞬時電(dian)(dian)流×絕緣線(xian)(xian)的電(dian)(dian)容

電纜(lan)線采用的(de)工(gong)(gong)作功(gong)(gong)率(lv)大小(xiao)值(zhi)，也是驅動的(de)阻抗是須(xu)要的(de)工(gong)(gong)作功(gong)(gong)率(lv)大小(xiao)值(zhi)18.5KW直流無刷電機的(de)功(gong)(gong)率(lv)工(gong)(gong)作功(gong)(gong)率(lv)大小(xiao)值(zhi)是37A，這(zhe)么電纜(lan)線就(jiu)是須(xu)要采用37A的(de)工(gong)(gong)作功(gong)(gong)率(lv)大小(xiao)值(zhi)

電(dian)(dian)纜的(de)電(dian)(dian)容=電(dian)(dian)纜的(de)的(de)長度×電(dian)(dian)纜的(de)電(dian)(dian)容率÷電(dian)(dian)纜的(de)線徑

電線的(de)電容率(lv)，鋁線為(wei)0.0175 鋁線為(wei)0.0283

比(bi)如說：18.5KW高壓電(dian)(dian)機配16纜線(xian)，纜線(xian)相距1500米，電(dian)(dian)流(liu)電(dian)(dian)壓會消減高低

高壓(ya)電纜線(xian)(xian)的熱敏內(nei)阻(zu)=高壓(ya)電纜線(xian)(xian)的厚度千米×高壓(ya)電纜線(xian)(xian)的熱敏內(nei)阻(zu)率銅芯(xin)0.0175÷高壓(ya)電纜線(xian)(xian)的線(xian)(xian)徑16=1000×0.0175÷16=1.1Ω

絕緣線上的直流(liu)(liu)電壓=18.5×2=37A(折(zhe)算(suan)公式(shi)直流(liu)(liu)電直流(liu)(liu)電壓都按(an)照1KW輸出為(wei)2A怏速折(zhe)算(suan)公式(shi))

電(dian)(dian)(dian)容值降(jiang)=電(dian)(dian)(dian)線上的交流電(dian)(dian)(dian)37A×電(dian)(dian)(dian)線的電(dian)(dian)(dian)容1.1Ω=37×1.1=40.7V

也就算(suan)18.5KW三(san)相(xiang)電(dian)機的(de)配16纜線，纜線遠距離一千米，電(dian)阻(zu)(zu)會縮減(jian)41V，沒問題電(dian)阻(zu)(zu)380V-41V=339V，也許大于(yu)了沒問題電(dian)阻(zu)(zu)的(de)時間范(fan)圍故此(ci)三(san)相(xiang)電(dian)機的(de)會燒(shao)掉，故此(ci)硬(ying)件配置纜線時要要多線徑，來減(jian)小或(huo)增大電(dian)阻(zu)(zu)降。

要(yao)考慮(lv)到電壓電流(liu)降要(yao)怎么硬(ying)件配置電纜(lan)電線?

銅(tong)絲的(de)受(shou)力積=(接地(di)(di)線上的(de)直流電(dian)阻(zu)值×接地(di)(di)線的(de)段長度)÷(54.4×充許的(de)電(dian)阻(zu)值價(jia)格波動規(gui)模19V)

鋁(lv)線的剖(pou)的面積=(絞線上(shang)的交流(liu)電壓電流(liu)×絞線的高(gao)度)÷(34×限制的交流(liu)電壓下(xia)跌(die)使用(yong)范圍19V)

舉例說明：18.5KW電機的，電纜(lan)(lan)線電線長千(qian)米，配(pei)置單大電纜(lan)(lan)線電線?

銅芯(xin)受力積=(接(jie)地線上(shang)的交流電37A×接(jie)地線的長(chang)短一千米)÷(54.4×19V)=(37×1000)÷(54.4×19)=35.8線纜，也可以說是我們都要選取不少于35.8的銅芯(xin)電覽。

鋁(lv)線(xian)受力(li)積(ji)=(電(dian)線(xian)線(xian)上的(de)交流(liu)電(dian)37A×電(dian)線(xian)線(xian)的(de)長寬一(yi)千米)÷(34×19V)=(37×1000)÷(34×19)=57.3導電(dian)連接，也是(shi)小(xiao)編要抉擇不小(xiao)于等于57.3的(de)鋁(lv)線(xian)電(dian)線(xian)。

 之所以干電(dian)(dian)氣(qi)設備(bei)一段話(hua)，已知(zhi)a載(zai)(zai)荷電(dian)(dian)機功率，如何系統配(pei)置通信電(dian)(dian)纜，不單要(yao)注(zhu)意的到載(zai)(zai)荷的交流電(dian)(dian)，更注(zhu)意的到載(zai)(zai)荷間距越(yue)來越(yue)遠，而面臨(lin)的線電(dian)(dian)壓降的印象!