Moqapi o bonoloke sesebelisoa sa ho laola motlakase se kopanyang motlakase o bonolo, ho emisa ha bonolo, ho boloka matla a bobebe le mesebetsi e mengata ea tšireletso.Sebopeho sa eona se ka sehloohong se entsoe ke li-thyristors tse fapaneng tsa mekhahlelo e meraro le potoloho ea taolo ea elektroniki e kopantsoeng ka letoto lipakeng tsa phepelo ea motlakase le enjene e laoloang.Sebelisa mekhoa e fapaneng ea ho laola angle conduction ea thyristors ea mekhahlelo e meraro e tšoanang e le hore motlakase oa motlakase o laoloang o fetohe ho latela litlhoko tse fapaneng, 'me mesebetsi e fapaneng e ka phethahala.

Ka ts'ebeliso e ntseng e eketseha ea li-motor tse kholo (5000kW～60000kW)likhoebo tse kholo le lisebelisoa, mokhoa oa ho qala oa li-motor tse kholo o na lee khahliloe haholo.Ka lebaka la ts'ebetso e tlase ea sesebelisoa sa ho qala sa mokelikeli ha e khone ho fihlela litlhoko tsa ho qala tsa li-motor tse nang le matla a maholo, ts'ebeliso ea lisebelisoa tsa mofuta oa thyristor (boemo bo tiileng) bo qalile ho eketseha.'Me joale lisebelisoa tsa ho qalisa tse bonolo tsa mofuta oa transformer le li-reactors tsa magnetic saturation (tse laoloang ke makenete) lisebelisoa tse qalang le lisebelisoa tsa ho fetola maqhubu li sebelisoa le ho feta bakeng sa ho qala ha likoloi tse bonolo.Hajoale, lisebelisoa tse qalang tsa metsi li sebelisoa haholo ho li-motors tse nyane (tlasa 5000kW).Le letoto la thyristormothehi o bonololi sebelisoa haholo ho enjene ea matla a phahameng (ho feta 5000KW).