Umehluko phakathi kwesithando sokufakelwa kanye ne-cupola:

1. I-cupola iyithuluzi elibalulekile lokuncibilikisa insimbi ephonswe ekukhiqizeni ukukhiqiza. I-cast iron block iyancibilika ibe yinsimbi encibilikisiwe bese ithululelwa esikhunjeni sesihlabathi ukuze ipholiswe bese iqaqa ukuze kutholwe ukubunjwa. I-cupola iyisithando somlilo esincibilikisayo esiyicylindrical esime mpo, esihlukaniswe saba yisithando somlilo esingaphambili nesithando somlilo esingemuva. Ingaphambili liphinde lihlukaniswe libe yimbobo kampompi, imbobo kampompi ye-slag, iziko langaphambili lekhava yesithando somlilo kanye nebhuloho. Isithando somlilo esingemuva sihlukaniswe izingxenye ezintathu, isithando somlilo esiphezulu, isithando somlilo okhalweni kanye neziko. Isithando somlilo okhalweni sihlukaniswa neshubhu lokuqhuma okushisayo, sivaliwe ngemva kokulungisa isithando somlilo, futhi sivalwe ngodaka. Esithandweni somlilo esiphezulu kunesishintshi sokushisa. Isetshenziselwa ikakhulukazi ukukhiqizwa kwezinsimbi zensimbi futhi isetshenziselwa ukwenza insimbi ngeziguquli. Ngenxa yokuthi isithando somlilo sivuleka phezulu, sibizwa ngokuthi i-cupola.

2. Isithando somlilo sokungeniswa siyidivayisi yokunikeza amandla eguqula imvamisa yamandla engu-50HZ ishintshana yamanje ibe ifrikhwensi ephakathi (ngaphezulu kuka-300HZ kuya ku-20K HZ). Iguqula inkathi yamanje yamandla ezigaba ezintathu eshintshashintshayo ibe eyamanje eqondile ngemva kokulungiswa, bese iphendulela imanje eqondile ibe yamanje eshintshwayo yefrikhwensi emaphakathi. Imvamisa emaphakathi yamanje eshintshashintshayo egeleza ku-capacitor kanye nekhoyili yokungeniswa ihlinzekwa ukuze kukhiqizwe imigqa yamandla kazibuthe enamandla kakhulu kukhoyili yokungeniswa, kanye nezinto zensimbi eziqukethwe kukhoyili yokungeniswa ziyasikwa, bese kukhiqizwa i-eddy yamanje enkulu impahla yensimbi.