Advanced modeling techniques for dynamic feeder rating systems

This paper describes the technical details of an advanced model for use in real-time cable rating systems. Real-time cable rating systems perform calculations of steady-state and emergency cable ratings in real time; several such systems have been installed to maximize asset utilization without compromising cable system reliability. An example of a complex tunnel installation, featuring four self-contained fluid-filled and cross-linked polyethylene cable circuits, is described in detail, highlighting key issues of relevance to real-time systems.