選用耐電暈性能好的電磁線，以滿足電機耐高頻脈沖和局部放電的要求。一般使用聚酯亞胺/聚酰胺酰亞胺復合層漆包線，耐電暈、抗電暈電磁線。繞線、嵌線施工工藝，變頻電機在繞線、嵌線、綁扎等加工工藝必須嚴加管理，特別是在繞線、嵌線過程中防止損傷導線，嵌線過程應保證槽絕緣、相絕緣、層間絕緣放置到位。相絕緣應采用容易被絕緣漆浸透的材料，線圈端部應加強綁扎、固定，確保端部成為一個整體。在電機槽底、相間、層間及線圈首末匝等處加強絕緣，可提高電機耐電強度。主絕緣須采用無氣隙絕緣
變頻電機絕緣結構中的氣隙，是產生電暈的主要因素。為保證電機整體絕緣結構中不含空氣隙，根據國家標準GB/T21707一2008《變頻調速三相異步電動機絕緣規范》的規定，變頻調速三相異步電動機用的浸漬漆必須是不低于F級無溶劑漆，且揮發份小于10%，并采用VPI工藝。該工藝還以提高絕緣結構整體機械強度。
做好(hao)變頻器、電(dian)(dian)(dian)纜(lan)和(he)電(dian)(dian)(dian)機之(zhi)間的匹配工作，這樣做可(ke)以限制電(dian)(dian)(dian)機與(yu)電(dian)(dian)(dian)源之(zhi)間電(dian)(dian)(dian)纜(lan)的長度。由(you)于電(dian)(dian)(dian)源線(xian)阻抗的不匹配，隨(sui)著變頻器到(dao)電(dian)(dian)(dian)機之(zhi)間電(dian)(dian)(dian)纜(lan)長度增加(jia)，電(dian)(dian)(dian)機端的過(guo)電(dian)(dian)(dian)壓幅值(zhi)隨(sui)之(zhi)增加(jia)，這易于引(yin)起局部(bu)放(fang)電(dian)(dian)(dian)。為此，應根(gen)據具(ju)體的變頻電(dian)(dian)(dian)源特性和(he)實際需要，盡可(ke)能縮短其(qi)聯結電(dian)(dian)(dian)纜(lan)的長度，以減小(xiao)電(dian)(dian)(dian)機端的過(guo)電(dian)(dian)(dian)壓幅值(zhi)和(he)局部(bu)放(fang)電(dian)(dian)(dian)量，延長電(dian)(dian)(dian)機壽命(ming)。