EVALUATION OF GROUNDING RESISTANCE AND ITS EFFECT ON UNDERGROUND CABLE SYSTEMS

A. I. Chrysochos, L. A. Rozik, I. Dolianitis,D. Chatzipetros,T. A. Papadopoulos, G. Georgallis

The 12th Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion (MEDPOWER 2020)（2020）

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摘要

This paper presents a complete methodology for the calculation of the grounding resistance and its effect on the induced sheath voltages and earth potential rise that a cable system may encounter under fault conditions. First, the derivation of the two-layer soil model is performed by using a dataset of measured apparent resistivity. Then, the resistance of the grounding system in cable applicatio...

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关键词

soil,earthing,power cables,underground cables,cable sheathing,finite element analysis,power engineering computing,fault diagnosis

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