Measures For The Postprocessing Of Grounding
Electrodes Transient Response
Author(s)
D. Poljak, V. Dorić, V. Murko & C. A. Brebbia
Abstract
Various measures for quantifying the transient response of simple grounding
systems are proposed in this paper. In addition to the standard transient
impedance concept the suggested measures arising from the circuit theory are
instantaneous power, average power and total energy stored in the near field of a
grounding electrode. The frequency response of the grounding electrode is
obtained by using the antenna model (AM) while the associated transient
response is computed using the Inverse Fourier Transform. The
integro-differential realtionships arising from the wire antenna theory are
numerically handled via the Galerkin-Bubnov scheme of the Indirect Boundary
Element Method (GB-IBEM). A number of illustrative numerical results are
presented in the paper.
1 Introduction
Transient analysis of grounding systems, important for protection of personnel
and equipment, is of widespread interest in electromagnetic compatibility (EMC)
and high voltage (HV) engineering. Transient modeling of grounding systems
can be carried out applying either the transmission line model (TLM) [1–3] or
antenna (electromagnetic) model (AM) [4–6]. An important parameters arising
from studies of transients in grounding systems is the transient impedance.
Further to the transient impedance concept for postprocessing transient
responses, widely adopted within EMC community, this work deals with some
additional measures of a horizontal electrode transient response. These measures
arise from the circuit theory and are, as follows: instantaneous power, average
power and the total energy accumulated in the near field of the electrode.
Keywords
Related Book
Other papers in this volume
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