ACB(Preset Type, Draw out Sort) It is a future-generation variety ACB with dynamic attribute trustworthiness greatly improved by adopting electronic overcurrent relay built in with large-precision A/D conversion circuit utilized for measuring devices.– T? ??ng kh?i ??ng ho?c d?ng ho?t ??ng ( c?a DG ) khi ngu?n ?i?n có s? c?By Tr?n Hoài Th??ng &