I-YVF uchungechunge oluguquguqukayo lwesivinini sokulawulwa kwesivinini samandla kagesi aphezulu ezigaba ezintathu zama-asynchronous motors (usayizi wohlaka 315~630) (okuzobizwa ngawo manje ngokuthi amamotho) ayimikhiqizo emisha eyakhiwe yinkampani yethu ngokwesidingo semakethe. Uma isetshenziswa nge-frequency converter, ingafinyelela ukulawulwa kwesivinini esingenasinyathelo esibushelelezi ebangeni elibanzi, lapho ibanga lemvamisa lika-5-50Hz liwukulawulwa njalo kwejubane le-torque, futhi ububanzi bemvamisa ye-50-100Hz ingumthethonqubo wejubane lamandla njalo. Kungumkhiqizo wokushayela ofanele ukuhlangabezana nezidingo zemishini yokulawula isivinini.
Lolu chungechunge lwama-motor lwenziwa ngezinto ezikhethwe ngokucophelela futhi zenziwe kahle. Banezici zebanga elibanzi lokulawula isivinini, ukusebenza kahle okuphezulu, umsindo ophansi, ukudlidliza okuphansi, ukusebenza okuphephile nokuthembekile, ukusetshenziswa okulula nokugcinwa, ukonga amandla nokuvikelwa kwemvelo.