Lightning Surge Analysis in a Multi-Conductor System for Substation Insulation Design

Ozawa,; Ohsaki,; Ishii,; Kojima,; Ishihara,; Kouno,; Kawamura,

doi:10.1109/mper.1985.5526404

Cited by 6 publications

(1 citation statement)

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“…Much measured data were reported for the q ‐ u curves; however, they were obtained only under double exponential impulses . In fact, most of lightning intruding surges into substations consider the damped oscillation waveshapes rather than the double exponential ones due to refraction and reflection of the surge waves . In view of the actual situation, some efforts were undertaken for measuring the q ‐ u curves under damped oscillation impulses, and a significant difference was found between the q ‐ u curves under double‐exponential and damped oscillation impulses .…”

Section: Introductionmentioning

confidence: 99%

Measurement of corona characteristics of conductor bundles under negative damped oscillation impulses

Zhang

2019

IEEJ Transactions Elec Engng

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The corona characteristics of the single and bundle conductors are investigated experimentally under negative damped oscillation impulses. The experimental setup consisting of a modified impulse generator, corona cage and digital measurement system is built for measuring the charge–voltage (q‐u) curves. An exploratory experiment is described with special attention to the effect of the number of bundle conductors on the feature of q‐u curves. The behavior of the minor loops on the q‐u curves is examined from a single‐conductor to four‐conductor bundle. In terms of the measured corona inception voltage, the corona inception field strength is evaluated at a critical distance from the inner electrode. The capacitance increase coefficient and energy dissipated by corona are extracted from the measured q‐u curves. Then, a discussion is also presented on these characteristic indices according to the gas discharge mechanism. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Section: Introductionmentioning

confidence: 99%

Measurement of corona characteristics of conductor bundles under negative damped oscillation impulses

Zhang

2019

IEEJ Transactions Elec Engng

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Insulation Coordination in Gas Insulated Switchgear Against Lightning Overvoltages

Kawamura

Ozawa

1991

Gaseous Dielectrics VI

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Scale model experimental study on the effect of lightning stroke inclination on the overvoltages across insulator strings

Wahab

Matsubara

1995

Electric Power Systems Research

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Lightning Surge Analysis in a Multi-Conductor System for Substation Insulation Design

Cited by 6 publications

References 0 publications

Measurement of corona characteristics of conductor bundles under negative damped oscillation impulses

Measurement of corona characteristics of conductor bundles under negative damped oscillation impulses

Insulation Coordination in Gas Insulated Switchgear Against Lightning Overvoltages

Scale model experimental study on the effect of lightning stroke inclination on the overvoltages across insulator strings

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