Hot spot monitoring in switchgear helps prevent accidents and electricity shutdowns.
Some of the major issues in switchgears appear where busbars interfacing with other busbars or cables form poor connections. When that happens, junctions heat up causing further degradation of the connection, which may eventually fail. To correct this the busbar has to be replaced and recommissioned which means the compartment has to be taken out of service.
How it works
Wireless battery-free sensors are deployed in switchgear hot spots. By installing a fixed reader at a safe distance, RFID sensors will transfer hot spot temperature data in real time.
Being RFID sensors, each temperature sensor has its own ID so the user at the other end knows which specific sensor is sending critical data, which allows the user to address the issue in the specific hot spot. Adding extra sensors is always possible just by giving them unique IDs so the complete system can identify all RFID sensors individually.
The system is then completed with specific software based on critical factors such as high and low temperature thresholds, automation of actions based on sensor data or even integration of the hot spot monitoring system into the company’s maintenance system.