ACB(Preset Kind, Draw out Sort) That is a future-technology type ACB with dynamic characteristic trustworthiness significantly improved by adopting digital overcurrent relay built-in with higher-precision A/D conversion circuit utilized for measuring instruments.– 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 Ho