Eli nqaku lithelekisa ngokunzulu itekhnoloji ephambili kunye neemeko zosetyenziso lwabaphuli beesekethe zeempawu ezintathu eziphambili zamazwe ngamazwe: Schneider, Siemens, kunye ne-ABB. Ngokuhlalutya uthotho lweeflegi ezifana ne-Masterpact MTZ, iCompact NSX (Schneider), 3WL, 3VA (Siemens), kunye ne-Emax 2, Tmax XT DC (ABB), iingenelo zohlobo ngalunye zityhilwa ukusuka kumacala amathathu: iiparamitha zobugcisa, ukwenziwa kwezinto ezintsha, kunye nezicelo eziqhelekileyo: I-Schneider ilungile kwisisombululo sedijithali kunye noyilo olusekwe kwi-Siemens. ukusebenza, kwaye i-ABB yenze impumelelo kwii-algorithms ezikrelekrele kunye nobuchwepheshe be-DC. Uphononongo lubonise ukuba iimpawu ezintathu eziphambili zikhuthaza ukuguquka kweesekethe ekudibaniseni okuphezulu, ukuguquguquka kokusingqongileyo, kunye nobukrelekrele ngokudityaniswa kwe-Intanethi yeZinto, izinto ezintsha, kunye nokuphuculwa kolawulo lwamandla, ukubonelela ngezisombululo ezilungiselelwe ukufikelela kwamandla amatsha kunye neemfuno ezintsonkothileyo zegridi yamandla.