Gridiyo ndi netiweki yomwe imalumikiza magetsi opanga magetsi ku mizere yamagetsi apamwamba omwe amanyamula magetsi pamtunda wina kupita ku malo ang'onoang'ono - "kutumiza".Malo opitako akafika, malo ocheperako amachepetsa voteji kuti "agawidwe" kupita ku mizere yapakati yamagetsi kenako kupitilira mizere yotsika.Pomaliza, thiransifoma pamtengo wafoni imayichepetsa mpaka mphamvu yanyumba ya 120 volts.Onani chithunzi pansipa.

Gululi lonse likhoza kuganiziridwa kuti lili ndi zigawo zazikulu zitatu: kupanga (zomera ndi zosintha zowonjezera), kutumiza (mizere ndi ma transformer omwe akugwira ntchito pamwamba pa 100,000 volts - 100kv) ndi kugawa (mizere ndi ma transformer pansi pa 100kv).Mizere yotumizira imagwira ntchito pamagetsi okwera kwambiri 138,000 volts (138kv) mpaka 765,000 volts (765kv).Mizere yopatsirana imatha kukhala yayitali kwambiri - kudutsa mizere ya boma ngakhalenso mayiko.

Kwa mizere yayitali, ma voltages apamwamba kwambiri amagwiritsidwa ntchito.Mwachitsanzo, ngati magetsi akuwirikiza kawiri, magetsi amadulidwa pakati pa mphamvu yofanana yomwe imaperekedwa.Kutayika kwa mzere kumayenderana ndi malo amakono, kotero kuti "kutaya" kwa mzere wautali kumadulidwa ndi gawo la zinayi ngati voteji ikuwirikiza kawiri.Mizere ya "magawidwe" imapezeka m'mizinda yonse ndi madera ozungulira ndipo imatuluka ngati mtengo wozungulira.Kapangidwe kameneka kamamera kameneka kamakula kuchokera pa siteshoni yaing'ono, koma pofuna kudalirika, nthawi zambiri imakhala ndi cholumikizira chimodzi chosagwiritsiridwa ntchito kumtunda wapafupi.Kulumikizika uku kutha kuyatsidwa mwachangu pakagwa ngozi kuti gawo la siteshoni yapang'onopang'ono lizitha kudyetsedwa ndi siteshoni ina.