An Investigation into Wooden Pole Fire Inception Threshold in a Single Wire Earth Return System under Drought Conditions

Catriz, Roderick L.; Ahfock, Tony; Worden, John

doi:10.1109/aupec48547.2019.211914

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…The isolation transformer is very important because it is often used to prevent the SWER ground currents from causing earth current faults on the main medium voltage (MV) network. There have been cases of burning of earthing electrodes and wooden poles due to poor earthing (Catriz et al, 2019;Nobbs, 2012), and this is expensive as this hardware has to be replaced after every burning. To avoid such dangers and costs, the installation site must possess low or medium earth resistivity ( ), because this allows cheap cost of grounding the earthing electrodes and protection of equipment (Iliceto et al, 1989).…”

Section: Ground Resistancementioning

confidence: 99%

Potential for Increased Rural Electrification Rate in Sub-Saharan Africa using SWER Power Distribution Networks

Irechukwu¹,

Mushi²

2021

Preprint

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Rural electrification rate (RER) in Africa is still low to date. Several countries in Sub-Saharan Africa have tried to address this problem using conventional single-phase two-wire or three-phase three-wire systems, however at large costs due to the nature of dispersed rural load centers, low load demand, and low population density. Another solution of off-grid generation creates associated health problems. Therefore, this paper undertakes a review of a single wire earth return (SWER) network as a RER improvement solution. The paper undertakes intensive literature review to elucidate challenges and solutions to the implementation of SWER technology. Advantages of SWER technology discussed make it the choice for RER improvement in Sub-Saharan African countries. After that, a case study is selected in rural Tanzania, and a preliminary SWER network design is undertaken.

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Section: Ground Resistancementioning

confidence: 99%

Potential for Increased Rural Electrification Rate in Sub-Saharan Africa using SWER Power Distribution Networks

Irechukwu¹,

Mushi²

2021

Preprint

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Section: Ground Resistancementioning

confidence: 99%

Potential for Increased Rural Electrification Rate in Sub-Saharan Africa using SWER Power Distribution Networks

Irechukwu

Mushi

2020

TJET

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Rural electrification rate (RER) in Africa is still low to date. Several countries in Sub-Saharan Africa have tried to address this problem using conventional single- phase two-wire or three-phase three-wire systems, however at large costs due to the nature of dispersed rural load centres, low load demand, and low population density. Another solution of off-grid generation creates associated health problems. Therefore, this paper undertakes a review of a single wire earth return (SWER) network as a RER improvement solution. The paper undertakes intensive literature review to elucidate challenges and solutions to the implementation of SWER technology. Advantages of SWER technology discussed make it the choice for RER improvement in Sub-Saharan African countries. After that, a case study is selected in rural Tanzania, and a preliminary SWER network design is undertaken.

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“…In a SWER system, earthen electrodes play a vital role, and its failure could cause a cascading effect that may lead to severe damage or poles catching fire. Thus some measures were proposed to prevent the wooden pole from catching fire, especially during drought season in [14]. Besides, the SWER system needs characterization of high-frequency earth path, this is worth noting that the use of analytical terminologies in estimating earth paths' high-frequency characteristics may lead to erroneous outcomes [11], and hence the use of a hybrid method of empirical-analytical characterization provides better results.…”

Section: Introductionmentioning

confidence: 99%

Feasibility analysis of single wire earth return system for potential application in rural electrification in Nigeria

Mohammed

Tahir

Bature

et al. 2022

IJAAS

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<span>Traditionally, three-phase networks are used to transmit electric power to consumers. However, due to its high initial cost, many isolated rural communities are yet to have access to electricity. Thus, the single wire earth return (SWER) architecture, which uses the earth as the return path, attracts significant cost savings. In this paper, the potential application of the SWER system for rural electrification in Nigeria was presented. The cost-effectiveness of the SWER system which is about 70% less than the three-phase configuration, is due to the need for fewer cables, pole-top fittings, switching, and protection devices. Initially, the dynamic modeling of the equivalent SWER system was derived for the MATLAB simulation analysis. The pertinent parameters of the realized system, namely, micro-former leakage reactance, the resistive and inductive value of the single-phase network, were determined and employed for the SIMULINK and the repetitive power flow analyses. The results obtained from the power flow analysis and the simulation models for different loading conditions were found to agree with an error margin of +5%. This demonstrates that the proposed prototype can be adopted to reduce the prevalent energy poverty and thereby improved the quality of life of rural dwellers in Nigeria.</span>

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An Investigation into Wooden Pole Fire Inception Threshold in a Single Wire Earth Return System under Drought Conditions

Cited by 3 publications

References 11 publications

Potential for Increased Rural Electrification Rate in Sub-Saharan Africa using SWER Power Distribution Networks

Potential for Increased Rural Electrification Rate in Sub-Saharan Africa using SWER Power Distribution Networks

Potential for Increased Rural Electrification Rate in Sub-Saharan Africa using SWER Power Distribution Networks

Feasibility analysis of single wire earth return system for potential application in rural electrification in Nigeria

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