Using Fall-of-Potential Measurements to Improve Deep Soil Resistivity Estimates

Southey, Robert; Siahrang, Majid; Fortin, Simon; Dawalibi, F.P.

doi:10.1109/tia.2015.2428679

Cited by 27 publications

(14 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…16 Study shows that soils with high resistivity posses negative effect on earth electrodes and gride. Soil resistivity determines the earth resistance value.…”

Section: Soil Resistivitymentioning

confidence: 98%

“…Literature reveals that it varies from soil to soil and is dependent on the physical composition of the soil, dissolved salts, moisture, grain size and distribution, current magnitude and seasonal variation. 16 Study shows that soils with high resistivity posses negative effect on earth electrodes and gride. 17 However, the roil resistivity depends on many factors; below are some factors which determine the soil resistivity to the flow of leakage current:…”

Section: Soil Resistivitymentioning

confidence: 98%

“…A small quantity of salt in water has the potential of reducing soil resistivity by 80%, with common salt being the most effective in improving soil conductivity. 16,19 iv. Climate condition: A decrease or increase of moisture content in soil determines the decrease or increase of the soil resistivity.…”

Section: Soil Resistivitymentioning

confidence: 99%

See 2 more Smart Citations

Assessment and prediction of earthing resistance in domestic installation

Nti

Appiah

Nyarko‐Boateng

2020

Engineering Reports

View full text Add to dashboard Cite

Before the introduction of the Ghana Electrical Wiring Regulations 2012 (L.I. 2008), most residential wiring within Sunyani Municipality was carried out by unlicensed artisans. This situation imposed a need to investigate the effectiveness of the earthing systems carried in the Sunyani municipality. Therefore, the current study sought to evaluate earthing resistance effectiveness within the Sunyani Municipality by measuring the earthing resistance of 1004 homes with an earthing resistance tester from January 2016 to April 2018. Again, we predict future resistance based on measured values. Out of 1004 buildings surveyed, 834 had an earthing system in place. Twenty‐eight buildings, recorded an earth electrode test within 0.0 to 10 Ω representing 3.36%. A high percentage (96.64%) had their earth electrode resistance above the acceptable value by the Energy Commission of Ghana. The results revealed that the overall effectiveness of earthing in the domestic installation in Sunyani Municipality is below average compared with Ghana Energy Commission benchmark.

show abstract

“…16 Study shows that soils with high resistivity posses negative effect on earth electrodes and gride. Soil resistivity determines the earth resistance value.…”

Section: Soil Resistivitymentioning

confidence: 98%

Section: Soil Resistivitymentioning

confidence: 98%

See 1 more Smart Citation

Assessment and prediction of earthing resistance in domestic installation

Nti

Appiah

Nyarko‐Boateng

2020

Engineering Reports

View full text Add to dashboard Cite

show abstract

“…Several laboratory studies have collected data on electrical resistivity of soils and their physical properties, see, for example, (Edlebeck & Beske, 2014;Zhou Wang et al, 2015;Southey et al, 2015;Al Rashid et al, 2018;Alipio & Visacro, 2013Mokhtari & Gharehpetian, 2018). However, only a few electrical resistivity models were used to assess the role of different physical properties.…”

Section: Introductionmentioning

confidence: 99%

Modeling of electrical resistivity of soil based on geotechnical properties

Alsharari¹,

Olenko

Abuel-Naga

2020

Expert Systems with Applications

View full text Add to dashboard Cite

Determining the relationship between the electrical resistivity of soil and its geotechnical properties is an important engineering problem. This study aims to develop methodology for finding the best model that can be used to predict the electrical resistivity of soil, based on knowing its geotechnical properties. The research develops several linear models, three non-linear models, and three artificial neural network models (ANN). These models are applied to the experimental data set comprises 864 observations and five variables. The results show that there are significant exponential negative relationships between the electrical resistivity of soil and its geotechnical properties. The most accurate prediction values are obtained using the ANN model. The cross-validation analysis confirms the high precision of the selected predictive model. This research is the first rigorous systematic analysis and comparison of difference methodologies in ground electrical resistivity studies. It provides practical guidelines and examples of design, development and testing non-linear relationships in engineering intelligent systems and applications.

show abstract

“…Reference mentions that Wenner's method or known as four-point method is required to perform soil measurement test [1]. Data from the tests are interpreted for soil resistivity based on type of soil model [2]. Uniform soil model and two-layer soil model are commonly used model in grid design.…”

Section: Introductionmentioning

confidence: 99%

Design of a Substation Grounding System for Fast Front Overvoltage

2019

IJRTE

View full text Add to dashboard Cite

Grounding studies allow an optimized design of grounding system to provide protection for electrical components and personnel at substation. The design of grounding system needs to comply with IEEE Standard 80:2013. Field work is conducted with Fall-of-Potential method and Wenner’s method to perform measurement soil test. Data from measurement test is used to develop two-layer soil model by using Sunde’s graphical method. Calculation for tolerable step voltage and touch voltage are under 50kg body weight condition. Based on the findings, calculated values for tolerable step voltage and touch voltage are higher than calculated values for mesh voltage and touch voltage. The percentage of error is 7% when computed values and calculated values for tolerable voltages are compared. Higher tolerable voltages minimise the risk of getting electrical shock to any individual presents at substation during fault or lightning strike occurs. However, there is limitation in this paper related to software licensing where full simulation with grounding software required full access.

show abstract

Using Fall-of-Potential Measurements to Improve Deep Soil Resistivity Estimates

Cited by 27 publications

References 8 publications

Assessment and prediction of earthing resistance in domestic installation

Assessment and prediction of earthing resistance in domestic installation

Modeling of electrical resistivity of soil based on geotechnical properties

Design of a Substation Grounding System for Fast Front Overvoltage

Contact Info

Product

Resources

About