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Electrical Isolation of Two Earthing Systems under Lightning Conditions with TiO2 Nano Fluid Barrier

Electric equipment protection; Electrodes; Lightning; Lightning protection; Oxides; Soils; Titanium dioxide; Transients; Earthing electrodes; Electrical continuity; Electrical isolation; Laboratory experiments; Potential barriers; Potential gradients; Titanium dioxides (TiO2); Two-electrode systems;...

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Main Authors: Gomes C., Izadi M.
Other Authors: 57201335285
Format: Conference Paper
Published: Institute of Electrical and Electronics Engineers Inc. 2023
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spelling my.uniten.dspace-244632023-05-29T15:23:43Z Electrical Isolation of Two Earthing Systems under Lightning Conditions with TiO2 Nano Fluid Barrier Gomes C. Izadi M. 57201335285 56406980700 Electric equipment protection; Electrodes; Lightning; Lightning protection; Oxides; Soils; Titanium dioxide; Transients; Earthing electrodes; Electrical continuity; Electrical isolation; Laboratory experiments; Potential barriers; Potential gradients; Titanium dioxides (TiO2); Two-electrode systems; Electric grounding A Titanium dioxide (TiO2) nano fluid based potential barrier is proposed to separate two earthing systems which are in the proximity with each other, yet, should not have a transfer of potential between them. Such systems are often required in MV/LV transformers that have delta-star configuration. The TiO2 in the nano-fluidic form extruded into the cavity in the ground, get mixed with surrounding soil to form an extremely high resistive medium that prevents the electrical continuity between the two electrode systems via soil. Laboratory experiments show that depending on the resistivity and nature of the surrounding soil the resistivity of the TiO2-soil mixture could have resistivity that vary from about 105 ?m to 1012 ?m. By extruding to ground a 5 cm thick, semi cylindrical TiO2 nano-fluid mix of resistivity 107 ?m, having a radius of 2 m and depth of 1 m below the electrode length, the potential at a boundary point of the barrier could be reduced from 75 kV to 1.8S kV when 100 kV impulse is injected to the earthing electrode. � 2019 IEEE. Final 2023-05-29T07:23:43Z 2023-05-29T07:23:43Z 2019 Conference Paper 10.1109/SIPDA47030.2019.8951640 2-s2.0-85079041555 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85079041555&doi=10.1109%2fSIPDA47030.2019.8951640&partnerID=40&md5=c086931014762f94664392f8ff29b535 https://irepository.uniten.edu.my/handle/123456789/24463 8951640 Institute of Electrical and Electronics Engineers Inc. Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Electric equipment protection; Electrodes; Lightning; Lightning protection; Oxides; Soils; Titanium dioxide; Transients; Earthing electrodes; Electrical continuity; Electrical isolation; Laboratory experiments; Potential barriers; Potential gradients; Titanium dioxides (TiO2); Two-electrode systems; Electric grounding
author2 57201335285
author_facet 57201335285
Gomes C.
Izadi M.
format Conference Paper
author Gomes C.
Izadi M.
spellingShingle Gomes C.
Izadi M.
Electrical Isolation of Two Earthing Systems under Lightning Conditions with TiO2 Nano Fluid Barrier
author_sort Gomes C.
title Electrical Isolation of Two Earthing Systems under Lightning Conditions with TiO2 Nano Fluid Barrier
title_short Electrical Isolation of Two Earthing Systems under Lightning Conditions with TiO2 Nano Fluid Barrier
title_full Electrical Isolation of Two Earthing Systems under Lightning Conditions with TiO2 Nano Fluid Barrier
title_fullStr Electrical Isolation of Two Earthing Systems under Lightning Conditions with TiO2 Nano Fluid Barrier
title_full_unstemmed Electrical Isolation of Two Earthing Systems under Lightning Conditions with TiO2 Nano Fluid Barrier
title_sort electrical isolation of two earthing systems under lightning conditions with tio2 nano fluid barrier
publisher Institute of Electrical and Electronics Engineers Inc.
publishDate 2023
_version_ 1806423227327578112
score 13.222552

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