GDZG-300 fa'asologa o le DC su'ega maualuga voltage o lo'o fa'ata'ita'iina DC maualuga mo le fa'amalama fa'amalama o le zinc oxide, fa'amalo fa'amaneta, uaea eletise, generators, transformers, ki, ma isi meafaigaluega, lea e talafeagai mo le lala eletise, matagaluega mana o fale gaosi oloa, iunite su'esu'e fa'asaienisi, nofoaafi, alamanuia vaila'au, fale eletise.