Research on Monitoring System of Cable Joints of Ring Network Cabinet Based on Wireless Temperature Sensor

Abstract

In this paper, a state monitoring system for the cable joints of the ring main unit is constructed based on the passive wireless temperature sensor. Considering the sensor packaging structure and housing material, a temperature sensor that can meet the monitoring requirements of the T-shaped insulating sheath of the cable joint is designed. Based on the thermal circuit method, the real temperature value of the internal cable joint is calculated by using the outer surface temperature of the T-shaped insulating sheath to provide more accurate data for monitoring and early warning. The background monitoring software of the monitoring system is designed to realize the temperature of the T-shaped cable joint in the ring network cabinet. Online monitoring and abnormal early warning facilitate the operation and maintenance personnel to take timely measures, which can effectively improve the operation and maintenance efficiency of the ring cabinet of the distribution network and ensure the reliability of power supply.

Power cable monitoring method based on UHF‐RFID and deep learning in edge computing environment

“…Taking into account the characteristics of the sensor, a temperature sensor that can meet the monitoring requirements of the T‐shaped insulation sheath of cable joints was designed in ref. [10]. However, this method can generally only detect the temperature of the cable joint or the outer surface of the cable at a fixed point, and cannot reflect the true temperature of the cable conductor, and is easily affected by the surrounding environmental temperature.…”