Defence of dissertation in the field of Power Systems and High Voltage Engineering, M.Sc. (Tech.) Frank Zoko Ble
The title of thesis is “Novel Methods for Arcing Fault Detection and Location in Power Distribution Systems”
Conventional power system protection functions deal with currents and voltages associated with faults. However, in many arc fault conditions, the current is under the setting of relays, and the arc continues to burn undetected. Power arcs gener-ate electromagnetic signals for instance due to tree leaning on energized conduc-tors, downed conductor or broken insulators. This thesis first investigates the characteristics of these electromagnetic signals and then examines algorithms for arc fault location using laboratory produced arcs. Using strategically placed an-tennas the electric arc can be detected at remote distance and, to some extent, the arc source location can be determined. The results show that it is feasible, using the radiated signals from arcing fault, to detect and locate the arcing source with a reasonable accuracy.
Opponent: Dr. Seppo Hänninen, VTT Technology Research Center of Finland.
Custos: Professor Matti Lehtonen, Aalto University School of Electrical Engineering, Department of Electrical Engineering and Automation.