/ Real-time detection and recovery system and its construction method in case of power line failure in distribution system

摘要

The present invention starts a real-time detection/recovery system in case of a power line failure in the distribution system that immediately alerts, cuts off, restores, and controls when disconnection, resistance increase, phase loss, connection failure, half disconnection, or leakage occurs on the power supply side of a three-phase or single-phase distribution system. do. The disclosed real-time detection/recovery system in case of a power line failure in the distribution system includes: a power-side detection/recovery unit having a neutral point and grounding the neutral point to the earth to step down the potential difference with the earth than the existing potential difference; a load-side detection/recovery unit having a neutral point and grounding the neutral point to the earth, or connecting the neutral point of the power-side detection/recovery device to recover a power-side electrical failure in real time; a fault detector for detecting input and output currents of the power line or neutral point of the load-side detection/recovery device, detecting the voltage between the neutral point and the ground, and alarming, blocking, and restoring, or transmitting the detected fault detection value to a controller; a controller that compares the detection value provided by the failure detector with a set value and sends an alarm to the communication module to issue an alarm, cut off the power, or notify via wired/wireless if it is determined as a failure, and release the alarm when an alarm cancellation signal is received; an alarm generator for generating an alarm according to an alarm signal provided by the failure detector or controller; an alarm cancellation input unit for canceling the alarm generation of the alarm generator; A breaker is provided to cut off the faulty power according to the blocking signal of the fault detector or the controller.