ACB(Fastened Style, Draw out Kind) It is a upcoming-technology style ACB with dynamic attribute trustworthiness greatly improved by adopting digital overcurrent relay built in with high-precision A/D conversion circuit used 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?– ?i?u ch?nh th?i gian ch