Umitha wamandla ombane ophezulu ufakwe kwibhokisi, ngaphandle kwemitha ye-watt-yure, ebizwa ngokuba yi-transformer edibeneyo, kunye nohlobo lwangaphandle lwe-oyile ye-AC (ekwafanelekile ngaphakathi kwindlu).Sisixhobo sokulinganisa ukulinganisa ngokuthe ngqo amandla asebenzayo kunye asebenzayo kwimigca yombane ophezulu.Isebenza kwisigaba sesithathu se-AC kunye ne-frequency rated 50, 60Hz;10KV, 6KV, 3KV inkqubo yenethiwekhi.Ineenzuzo zokuchaneka okuphezulu, ukusetwa kwakhona kokukhanya, ukufakwa ngokulula kunye nokuchasana nokubiwa kombane.Ngobuninzi bamasebe obonelelo ngombane amkelekile. Ibhokisi yemitha yocingo enezigaba ezintathu iqulunqwe ngamandla ombane amabini anesigaba esinye kunye neziguquli zangoku, kwaye ibhokisi yemitha yocingo enesigaba sesithathu iqulunqwe ngamanqanaba amathathu ombane kunye neziguquli zangoku.I-casing ifakwe kwipaneli, kwaye umphezulu wangaphandle uxhotyiswe nge-watt-hour meter yokulinganisa.