Grid iyi inetwork inobatanidza mafekitori emagetsi anogadzira magetsi kune mitsetse yemagetsi ine simba guru inotakura magetsi kure nechiteshi - "transmission". Kana nzvimbo yacho yasvika, mitsetse yacho inoderedza simba remagetsi re "distribution" kune mitsetse yemagetsi epakati uye yozowedzera simba remagetsi epasi. Pakupedzisira, transformer iri padanda refoni inoideredza kusvika pamagetsi emhuri e120 volts. Ona dhayagiramu iri pazasi.

Gridhi rese rinogona kufungwa nezvaro serinoumbwa nezvikamu zvikuru zvitatu: kugadzira (mafekitori nematransformer anokwira), transmission (mitsara nematransformer anoshanda pamusoro pe100,000 volts - 100kv) uye kugoverwa (mitsara nematransformer ari pasi pe100kv). Transmission tambo dzinoshanda pavoltage yakakwira zvikuru 138,000 volts (138kv) kusvika 765,000 volts (765kv). Transmission tambo dzinogona kureba zvikuru - kuburikidza nemiganhu yenyika uye kunyange mitsetse yenyika.

Pamitsetse mirefu, mavoltage akakwira anoshanda zvakanyanya. Semuenzaniso, kana voltage yakapetwa kaviri, magetsi anochekwa nepakati kuti simba riendeswe. Kurasikirwa kwemagetsi emagetsi kunoenderana ne "square" yemagetsi, saka "kurasikirwa" kwemitsara mirefu kunochekwa ne "factor" yechina kana voltage yakapetwa kaviri. Mitsetse ye "Distribution" inowanikwa mumaguta nenzvimbo dzakapoteredza uye inopararira nenzira yakafanana nemuti we radial. Chimiro ichi chakafanana nemuti chinokura kubva pa "substation", asi nekuda kwezvinangwa zvekuvimbika, chinowanzova ne "backup connection" imwe chete isina kushandiswa kune "substation" iri pedyo. Kubatana uku kunogona kuvhurwa nekukurumidza kana paine emergency kuitira kuti nzvimbo ye "substation" igone kupihwa simba neimwe "substation".