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AC控制输出过压 欠压 过流 保护



现在有个产品,用继电器控制输出220V  32A左右。之前用计量芯片和PT /CT来测量电压电流,过压,欠压,过流切断继电器。但是实际使用发现计量芯片,输出数据发出太慢。达不到100MS的要求。有无更好的办法,可以起到保护负载的作用。