Liwiro liri mofulumira kwambiri ndipo mphamvu zopangira ndizokwera. Poyerekeza ndi makina otsika-liwiro, zotulutsa ndi kugwiritsa ntchito mphamvu panthawi imodzimodzi zili ndi ubwino woonekeratu.
Zida zamagetsi zamtundu wamtundu monga Mitsubishi, Yaskawa, ndi zina, ndizodalirika komanso zogulitsa pambuyo pake.
DC main motor, imakhala ndi moyo wautali komanso yokhazikika komanso yodalirika. Ma motors a DC amathanso kukhazikitsidwa m'malo ena.
Malingana ndi cholinga chenichenicho, tikhoza kupereka ndondomeko yoyenera yopangira mizere.
Kusintha kokhazikika kumabwera ndi mipeni 10.