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、額定交流電流的(de)選擇

　　額(e)定交流(liu)(liu)(liu)(liu)(liu)電(dian)流(liu)(liu)(liu)(liu)(liu)是從發熱(re)方面設計(ji)電(dian)抗(kang)器(qi)的長期工作電(dian)流(liu)(liu)(liu)(liu)(liu)，同時(shi)應該考(kao)慮(lv)足夠的高(gao)次諧波分量。即輸出電(dian)抗(kang)器(qi)實際流(liu)(liu)(liu)(liu)(liu)過(guo)的電(dian)流(liu)(liu)(liu)(liu)(liu)是變頻器(qi)電(dian)機(ji)負(fu)載的輸出電(dian)流(liu)(liu)(liu)(liu)(liu)。

　　2、電壓降

　　電壓(ya)降是指50HZ時，對應實際(ji)額(e)定電流(liu)時電抗器線圈兩端(duan)的實際(ji)電壓(ya)降。通常選擇(ze)電壓(ya)降在(zai)4V~8V左(zuo)右。

　　3、電感量的選擇

　　電(dian)(dian)(dian)(dian)抗器的(de)(de)(de)額定(ding)(ding)(ding)電(dian)(dian)(dian)(dian)感(gan)量(liang)(liang)也是一個(ge)重(zhong)要(yao)的(de)(de)(de)參數!若(ruo)電(dian)(dian)(dian)(dian)感(gan)量(liang)(liang)選擇不合適，會直接(jie)影響額定(ding)(ding)(ding)電(dian)(dian)(dian)(dian)流下(xia)的(de)(de)(de)電(dian)(dian)(dian)(dian)壓降的(de)(de)(de)變(bian)化，從而(er)(er)引起故障。而(er)(er)電(dian)(dian)(dian)(dian)感(gan)量(liang)(liang)的(de)(de)(de)大(da)小取決于電(dian)(dian)(dian)(dian)抗器鐵芯的(de)(de)(de)截(jie)面積和線圈的(de)(de)(de)匝數與(yu)氣(qi)隙的(de)(de)(de)調整。輸出電(dian)(dian)(dian)(dian)抗器電(dian)(dian)(dian)(dian)感(gan)量(liang)(liang)的(de)(de)(de)選擇是根(gen)據在額定(ding)(ding)(ding)頻率范圍內(nei)的(de)(de)(de)電(dian)(dian)(dian)(dian)纜長度(du)來確定(ding)(ding)(ding)，然后再(zai)根(gen)據電(dian)(dian)(dian)(dian)動機的(de)(de)(de)實際(ji)額定(ding)(ding)(ding)電(dian)(dian)(dian)(dian)流來選擇相應電(dian)(dian)(dian)(dian)感(gan)量(liang)(liang)要(yao)求下(xia)的(de)(de)(de)鐵芯截(jie)面積和導(dao)線截(jie)面積，才(cai)能確定(ding)(ding)(ding)實際(ji)電(dian)(dian)(dian)(dian)壓降。