Real time monitoring system for 230 kV cables in tunnels

Real time monitoring systems for high voltage cable systems are becoming essential for ensuring asset profitability in the competitive utility environment. Real time information about the conductor temperature which a cable can experience without risking failure is extremely beneficial. This presentation describes the systems developed by Kinectrics for the Saunders GS plant on four high voltage cable circuits. The systems are customized to the specific circuits and circuit configurations and involve multiple distributed sensors strategically located along the cables. The systems provide real time display of all measured quantities in addition to computed conductor temperatures. The systems use rugged, commercial data acquisition and communication systems.