ACB(Fastened Style, Draw out Kind) It is a upcoming-technology style ACB with dynamic attribute reliability significantly improved by adopting digital overcurrent relay built in with large-precision A/D conversion circuit utilized for measuring instruments.– ?i?u ch?nh th?i gian chuy?n m?ch tr?c ti?p trên m?t c?a b? ?i?u khi?nBy Tr?n Hoài Th??n