Single Phase Auto-Reclosing Relay of Three-Phase Transmission Line with IoT and SCADA

In this paper, the Auto-Reclosing Relay (ARR) was designed and implemented with monitoring on the Internet of Things (IoT) and local SCADA systems. This system detects the faulty phase depending on the values of the angles of the actual impedances (postive sequence). The hardware of this system includes three PZEM-004T modules that are used to measure the electrical power parameters and the ESP8266 is employed to gather data from detectors and send it via the web to the Blynk server and to local SCADA via USB cable. The local SCADA system of the power line is used to monitor and control in HMI which is programmed by using the C# language.This paper gives a complete description of the compact system (ARR, SCADA and IoT),which works in an acurate and successful mechanism.