鄭州變頻器使用電抗器應如何選擇?下面從額定交流電流的選擇、電壓降、電感量的選擇、對應額定電流的電感量與電纜長度等方面進行分析。

　　1、額定交(jiao)流電流的選擇

　　額定(ding)交流(liu)(liu)(liu)電(dian)流(liu)(liu)(liu)是(shi)從發熱(re)方面設計電(dian)抗(kang)器的(de)長期工作(zuo)電(dian)流(liu)(liu)(liu)，同時應該考慮足夠的(de)高(gao)次諧波分量。即輸出電(dian)抗(kang)器實(shi)際流(liu)(liu)(liu)過(guo)的(de)電(dian)流(liu)(liu)(liu)是(shi)變頻器電(dian)機(ji)負(fu)載的(de)輸出電(dian)流(liu)(liu)(liu)。

　　2、電壓降

　　電(dian)壓(ya)降(jiang)是指50HZ時(shi)，對應實際額定電(dian)流時(shi)電(dian)抗器線圈兩端(duan)的實際電(dian)壓(ya)降(jiang)。通常選(xuan)擇(ze)電(dian)壓(ya)降(jiang)在4V~8V左右。

　　3、電感量的(de)選擇

　　電(dian)(dian)(dian)(dian)抗器(qi)的(de)(de)(de)(de)額定電(dian)(dian)(dian)(dian)感量(liang)也是一個重要的(de)(de)(de)(de)參數!若電(dian)(dian)(dian)(dian)感量(liang)選(xuan)擇不合適，會直接(jie)影響(xiang)額定電(dian)(dian)(dian)(dian)流(liu)下的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)降的(de)(de)(de)(de)變化，從而引(yin)起故障。而電(dian)(dian)(dian)(dian)感量(liang)的(de)(de)(de)(de)大小取決于電(dian)(dian)(dian)(dian)抗器(qi)鐵芯的(de)(de)(de)(de)截面(mian)(mian)積和(he)線(xian)圈的(de)(de)(de)(de)匝數與氣隙的(de)(de)(de)(de)調整。輸出電(dian)(dian)(dian)(dian)抗器(qi)電(dian)(dian)(dian)(dian)感量(liang)的(de)(de)(de)(de)選(xuan)擇是根(gen)據在額定頻(pin)率范圍內的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)纜長度來(lai)確定，然后再根(gen)據電(dian)(dian)(dian)(dian)動機的(de)(de)(de)(de)實際額定電(dian)(dian)(dian)(dian)流(liu)來(lai)選(xuan)擇相應電(dian)(dian)(dian)(dian)感量(liang)要求下的(de)(de)(de)(de)鐵芯截面(mian)(mian)積和(he)導線(xian)截面(mian)(mian)積，才能確定實際電(dian)(dian)(dian)(dian)壓(ya)降。