目前(qian)處(chu)(chu)理的(de)方(fang)式大多在漏(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)(bao)護(hu)(hu)檢(jian)測回路并聯高(gao)壓(ya)電(dian)(dian)(dian)(dian)(dian)容(rong)，消除檢(jian)測信號中的(de)高(gao)次(ci)(ci)諧波(bo)“毛刺”；其次(ci)(ci)可(ke)以(yi)利用(yong)優化漏(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)(bao)護(hu)(hu)參(can)數的(de)方(fang)式，根據30mAS(毫(hao)安(an)秒(miao))原(yuan)則，減小(xiao)漏(lou)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流，放大漏(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)(bao)護(hu)(hu)時間，使其乘積(ji)保(bao)(bao)持不變。另外，變頻器(qi)跳(tiao)饋電(dian)(dian)(dian)(dian)(dian)漏(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)(bao)護(hu)(hu)，雖(sui)然與變頻器(qi)的(de)電(dian)(dian)(dian)(dian)(dian)源特性有(you)(you)關，但是與饋電(dian)(dian)(dian)(dian)(dian)開關也有(you)(you)關系，不同廠家饋電(dian)(dian)(dian)(dian)(dian)開關的(de)保(bao)(bao)護(hu)(hu)整定不同，要認真學習說明書。有(you)(you)時候(hou)，饋電(dian)(dian)(dian)(dian)(dian)開關的(de)保(bao)(bao)護(hu)(hu)插件出(chu)現問(wen)題，也會造成饋電(dian)(dian)(dian)(dian)(dian)跳(tiao)閘(zha)，這時候(hou)往往用(yong)戶會拿我們變頻器(qi)說事，所(suo)以(yi)一定要認真檢(jian)查，分析原(yuan)因(yin)，正確處(chu)(chu)理。

對(dui)于(yu)(yu)風機(ji)水泵類負(fu)載，按照電(dian)動(dong)機(ji)的(de)額(e)(e)定(ding)電(dian)壓/額(e)(e)定(ding)電(dian)流/額(e)(e)定(ding)功率，選(xuan)用(yong)合適的(de)變(bian)頻器(qi)(qi)。對(dui)于(yu)(yu)皮帶機(ji)等(deng)恒功率負(fu)載，要根據負(fu)載工況，選(xuan)用(yong)與其工作特性相適應(ying)的(de)變(bian)頻器(qi)(qi)，如下運皮帶機(ji)或者(zhe)提(ti)升運輸絞車，選(xuan)用(yong)四(si)象限特性的(de)變(bian)頻器(qi)(qi)，變(bian)頻器(qi)(qi)的(de)功率應(ying)參考電(dian)動(dong)機(ji)的(de)額(e)(e)定(ding)電(dian)流進行選(xuan)擇，并大于(yu)(yu)電(dian)動(dong)機(ji)一個等(deng)級(ji)，以滿足(zu)重載起動(dong)的(de)要求。

對于(yu)深井泵(潛(qian)水(shui)泵)負載(zai)，不同(tong)于(yu)一般的(de)水(shui)泵負載(zai)，由(you)于(yu)變頻器到電動(dong)機的(de)距離較(jiao)遠，需要(yao)增加(jia)輸出正弦波濾(lv)波器，改(gai)善輸出電壓和電流波形(xing)，增加(jia)驅動(dong)性能;變頻器驅動(dong)水(shui)泵負載(zai)時(shi)，由(you)于(yu)排水(shui)泵為立(li)方特性負載(zai)，即(ji)轉(zhuan)速越(yue)高(gao)阻力(li)越(yue)大，所以變頻器的(de)啟動(dong)時(shi)間不要(yao)太長，否則(ze)水(shui)泵會由(you)于(yu)不能形(xing)成(cheng)真(zhen)空而不上水(shui);調試中還要(yao)注意水(shui)泵的(de)“水(shui)錘效(xiao)應(ying)”，否則(ze)損壞管(guan)路(lu)，嚴重時(shi)釀成(cheng)事故。