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Electrical Earthing System Design & Soil Resistivity Testing

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Finite Element Analysis

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Understanding Electromagnetic Inference using Finite Element Analysis

Finite element analysis (FEA) is a numerical method for solving problems in engineering and applied sciences. It is used to analyze and predict the behavior of complex systems. Such as structures, machines, and electronic devices, under a wide range of conditions (i.e. forces, energies, vibration, heat, fluid flow, and other physical effects).

Finite element analysis shows how something will perform when stressed. Whether it will break, wear out, or work the way it was designed BEFORE it is created, installed or built in the ‘real’ world.

It is called analysis, but in the product development process. It is used to predict what is going to happen when the product is used.

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Wet Soil Resistivity Testing: Ninja Tricks to Spot the Enemy

Soil Resistivity Testing in the wet particularly saturated ground. Has the potential for many problems.

Here are some ninja tricks to help you spot the enemy lurking in the damp…

Soil Resistivity Testing is the absolute starting point for pretty much everything to do with design for Earthing, grounding and lightning protection. (click link to flow chart) This is chiefly because all these type of systems are connected to earth and rely on the quality of this interface.  Therefore, understanding the soil resistivity and what the representative ‘Soil Model’ will look like is without doubt the single most important foundation to all subsequent safety calculations. [Read more…] about Wet Soil Resistivity Testing: Ninja Tricks to Spot the Enemy

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Importance of Soil Resistivity Testing for Electrical Earthing Design

What is Soil Resistivity?

Soil resistivity is a measure of how much the soil resists the flow of electricity. Soil Resistivity Testing is determining that measure. Therefore, is a critical factor in the design of systems that rely on passing current through the Earth’s surface. An understanding of the soil resistivity and how it varies with depth in the soil is necessary to design the electrical earthing systems. In an electrical substation, or for lightning conductors. Also for the design of earthing electrodes for substations and high-voltage direct current transmission systems needs this measurement. Because most substations, use the earth to conduct all or, a significant portion of fault current when there are earthing faults on the system.

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Electrical Earthing System Design Separation

During a recent training event held by SES Technologies for CDEGS (Current Distribution, Electromagnetic Fields, Grounding and Soil Structure Analysis). A finite element analysis software suite for Electrical Earthing System Design, a number of issues were discussed. But one that crops up time and time again in the UK was that old chestnut in Electrical Earthing System Design Separation.

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What is Remote Finite Element Analysis Earth Test?

Earth Testing – We’re frequently asked by Critical Asset owners – “Do we really have to physically test our Electrical Earthing System?” [Read more…] about What is Remote Finite Element Analysis Earth Test?