ACB(Set Type, Attract out Variety) This can be a next-technology kind ACB with dynamic attribute reliability greatly improved by adopting digital overcurrent relay inbuilt with higher-precision A/D conversion circuit useful 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?ch t? ??ng, giám s