Introduction: Trial installation of remote indicating fault passage indicators including the development of an interface between the management software and the main NMS control system.

Objectives: Fully prove the operation of a new type of fault passage indicator that signals (via commercial GSM/GPRS cellular communications) the presence of overhead line faults to a central location. Develop an interface between the receiving software and the main NMS control system to ensure control engineers are presented with all available fault information in a coherent way.