Title :
Modeling and analysis of URD cable systems
Author :
MelioPoulos, A. P Sakis ; Masson, Jean-Francois
Author_Institution :
Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
4/1/1990 12:00:00 AM
Abstract :
A method for modeling URD cables with explicit grounding representation is presented. The model accurately represents the skin effect in the cable conductor and shield, as well as in the soil and multiple grounds connected to the cable shield. The method is capable of representing insulated cables, semiconducting jackets, or bare concentric neutral cables. The accuracy of the model is validated by comparison with closed-form solutions of simple cable arrangements. The URD cable model has been integrated into EPRI´s SMECC program, a program designed to analyze the ground potential rise of grounding structures. The overall model is also useful for analysis of effects due to loss of cable neutral. Typical results illustrate the effectiveness of URD cables in reducing ground potential rise and effects of loss of neutral
Keywords :
digital simulation; earthing; power cables; power engineering computing; underground cables; underground residential distribution systems; URD; concentric neutral; digital simulation; earthing; ground potential rise; grounding; modeling; power cables; power engineering computing; skin effect; soil; underground residential distribution systems; Cable insulation; Cable shielding; Conductors; Earth; Grounding; Power cable insulation; Power cables; Power system modeling; Soil; Surface impedance;
Journal_Title :
Power Delivery, IEEE Transactions on
