The utility model discloses a disconnect -type low pressure faulted cable recognition device in the electric wire netting field of maintaining, including one hand -terminal and a plurality of acquisition terminal, the hand -terminal with acquisition terminal wireless connection, the acquisition terminal includes: gather singlechip, three split core type current transformer, with three the three phase current that split core type current transformer connects detects chip, wireless transmitting device, gathers the power and gathers the clock circuit, three phase current detects the chip, the wireless transmitting device, gather the power with it all connects to gather the clock circuit gather the singlechip, the hand -terminal is including reading singlechip, wireless receiving device, reading clock circuit, liquid crystal display, input device and read the power, the reading clock circuit input device the liquid crystal display read the power with the wireless receiving device is all connected read the singlechip. Its technological effect is: the realization is acquireed and is judged the trouble or the remote of overloaded signal of cable.