Lightning: earthing electrodes harmonic response

The grounding behavior (resistive, capacitive, inductive) to a lightning discharge is related to the electrodes' geometrical dimensions, shapes and the soil characteristics (resistivity ρ, permittivity , permeability μ). The border between the capacitive and inductive behaviors corresponds to a...

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Bibliographic Details
Main Authors: Aguado, M, Hermoso, B, Senosiain, V, Martinez-cid, P
Format: Conference Proceeding
Language:English
Subjects:
Applied sciences
Connection and protection apparatus
Disturbances. Regulation. Protection
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Power networks and lines
Power supply quality and harmonics
Protection apparatus
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Summary:The grounding behavior (resistive, capacitive, inductive) to a lightning discharge is related to the electrodes' geometrical dimensions, shapes and the soil characteristics (resistivity ρ, permittivity , permeability μ). The border between the capacitive and inductive behaviors corresponds to a frequency value (critical frequency fc), analyzed with the T line model. A practical relation (fc, ρ/1) is obtained from variable frequency tests made over different electrodes. (5 pages)
ISSN:0537-9989
DOI:10.1049/cp:19990644