Low-Cost Monitoring Unit for MV Cable Joints Diagnostics

Cable joints reliability is crucial for a smart power system. A high rate of cable failure in underground cable power networks is due to the cable joints. The causes of cable joint failure can be identified through in-field monitoring of their electrical and environmental parameters. This paper is about modular units designed to measure current, pressure, temperature and humidity. These units have been installed in Palermo (south of Italy) at e-distribuzione MV network. First results of the measurement campaign are shown as well.