Abstract: Models in high frequency range for underground power cable connections are essential for the interpretation of partial discharge (PD) signals arising e.g. diagnostic techniques. This paper focuses on modeling of power cable joints. A lumped parameter odel and a cascaded transmission line model are proposed based on scattering parameters (S -parameters) measurement on a 10 kV oil-fille...

Non Linear State Estimation of a Multi Axis Surgical Robot Srikrishnan Ramadurai Chair of the Supervisory Committee: Professor Blake Hannaford Electrical Engineering Minimally invasive surgical robots often have cable driven power transmission mechanisms. An example is the RAVEN surgical robot developed at the Biorobotics Laboratory, University of Washington for research on robotic surgery. The...

Defects inside insulation of HV XLPE cable accessories can lead to partial discharge (PD) activity. When PD activity happens, leakage current may flow through the grounded line. To acquire the PD current signal, one practicable and effective method is placing a high frequency current transformer (HFCT) winding the grounded line. In order to measure the insulation degradation, a partial discharg...

The electromagnetic losses and shielding efficiency of shields for a buried three phase high voltage cable are studied for several shielding configurations. The shields are U-shaped gutters covered with plates, and the power cables are positioned either in trefoil or in flat configuration. The shielding efficiency and the losses are compared for shields with the same geometry but several shield...

This paper presents a modified Jaya algorithm (MJaya) for optimizing the material costs and electric-thermal performance of an Underground Power Cable System (UPCS). Three power cables arranged in flat formation are considered. XLPE high voltage situated thermal backfill layer ensuring optimal cable system. The dimensions, material, conductor area selected as design variables optimization probl...

This paper presents indoor propagation measurements for a radiating cable in the UHF band, from 800 MHz to 2.5 GHz, in order to analyse the behaviour of such device for the integration of various wireless technologies. The measurements showed a different behaviour in the received power in contrast with a particular propagation model of radiating cables, which was reported in the literature. The...