Makina ozizirira omiza amadzimadzi amagwiritsa ntchito madzi osagwiritsa ntchito kuziziritsa zida zamagetsi, monga mafuta amchere kapena insulating fluid.Madziwo amasungidwa mu thanki kapena makina ena osindikizidwa.Zida zamagetsi zimakonzedwa kuti zimizedwe ndi njira yomiza ndikumizidwa mumadzimadzi ndikukhazikika ndi njira yosinthira kutentha.