Title :
Simulation of the dynamic charge carrier injection and motion in technical XLPE insulation systems
Author :
Gottlich, S. ; Meurer, D.
Author_Institution :
Inst. fuer Allgemeine Elektrotech. & Hochspannungstech., RWTH Aachen, Germany
Abstract :
A method for the simulation of dynamic carrier injection and motion in cross-linked polyethylene (XLPE) insulation systems is presented. In a first study the influence of a cylindrical 50-μm conducting impurity on the surface of the conducting layer is investigated. For the simulation of the dynamic space charge formation and motion in the high-voltage cable under investigation the influence of a lightning impulse is considered. The simulation shows the penetration and storage of charge carriers in a region around the impurity. In the example presented the amount of injected charge around the impurity does not reduce the expected maximum field strength significantly in the phase of high-voltage stress
Keywords :
cable insulation; organic insulating materials; polymers; power cables; space charge; cylindrical conducting impurity; dynamic charge carrier injection; dynamic space charge formation; high-voltage cable; high-voltage stress; lightning impulse; simulation; space charge motion; storage of charge carriers; technical XLPE insulation systems; Cable insulation; Cables; Charge carriers; Current measurement; Dielectric materials; Finite difference methods; Geometry; Polymers; Space charge; Voltage;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1992., Proceedings of the 4th International Conference on
Conference_Location :
Sestri Levante
Print_ISBN :
0-7803-0129-3
DOI :
10.1109/ICSD.1992.224952
