ACB(Fixed Variety, Attract out Style) This can be a following-technology style ACB with dynamic attribute trustworthiness greatly improved by adopting digital overcurrent relay inbuilt with substantial-precision A/D conversion circuit employed for measuring instruments.S? d?ng cho h? th?ng ?i?n h? th? khi ngu?n c?p ph? t?i b? gián ?o?n B? chuy?n m