Technical Recommendations for Implementation of Dynamic Cable Rating System – Cable Modelling

Abstract

Dynamic Cable Rating (DCR) systems are an attractive solution to adopt by network operators to determine the real-time thermal ratings of underground cables and potentially operate them at a higher loading level. This paper provides an overview of existing DCR calculation methodologies with particular reference made to thermal electrical equivalent models which is the most established method for dynamic cable rating computation. Within this overview includes practical considerations and limitations of DCR methodologies and models with recommendations provided on how to implement and install Distributed Temperature Sensing (DTS) technology alongside DCR systems.