ACB(Preset Form, Draw out Type) This is a upcoming-era kind ACB with dynamic attribute dependability greatly enhanced by adopting electronic overcurrent relay inbuilt with high-precision A/D conversion circuit employed 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??ng • t