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Power Systems Technical Articles

Our experts continuously work on power systems problems, and we share solutions with Practical Reference Articles.

The main topics are earthing system modeling, power cable ratings, HV/LV electrical design, protective device coordination, and arc flash studies. We cover IEC and IEEE standards.

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Low Voltage Design
Earthing Design
High Voltage Cable Design
Arc Flash Studies
ELEK vs Competitors
Electrical Software
A man wearing a safety vest works at a desk with two computer monitors displaying engineering software and technical diagrams.
5 mins read

AI Modelling of Cables for IEC 60287 Ampacity Studies

A technical study on AI cable modelling for IEC 60287 ampacity calculations, comparing ELEK AI with ChatGPT and Claude using a 330 kV case study.
1653971060513 1170x585 - Popular
3 mins read

Soil Frequency Dependency During Lightning Strikes

The effects of lightning strikes on earthing or protection systems designed to IEC 62305 can be modelled using an equivalent single frequency from 25kHz up to 1MHz which gives similar results to a time-domain approach. This article provides the frequency and current values to be used for modelling lightning.
2 mins read

How to model earthing surrounded with bentonite

How to model the influence of an additional substances like bentonite surrounding the conductors of a buried earthing system on grid resistance, touch and step voltages.
LV Power Cables on Drums small ELEK Software 1170x585 - Popular
1 min read

Accurate voltage drop calculations

Accurately calculating voltage drop results in lower voltage drops which leads to smaller cable sizes and saves money.
Lightning strike on substation and transmission tower
4 mins read

Transmission Line Tower Earthing Analysis

The purpose of transmission line grounding is to provide adequate lightning performance of the line; and effectively dissipate fault current avoiding the build-up of unsafe step and touch potentials around the tower base.
2 mins read

Telecomm Mobile Repeater Station

The following tutorial is designed to help users of SafeGrid Earthing Software to learn about and practice the application of powerful operating tools and principles.
Voltage Rise Calculation Report Template 1170x585 - Popular
1 min read

Voltage Rise Report Template

Download the attached PDF report template and use it for your solar connection applications.
Lightning mast on a building Close up 1170x585 - Popular
6 mins read

Modelling Lightning Effects with an Equivalent Frequency

The effects of lightning strikes on earthing or protection systems designed to IEC 62305 can be modelled using an equivalent single frequency from 25kHz up to 1MHz which gives similar results to a time-domain approach. This article provides the frequency and current values to be used for modelling lightning.
1646194947271 1 e1646714632396 1170x585 - Popular
3 mins read

Current Rating for Groups of Circuits Installed in Air

The calculation of current ratings for groups of (multiple) cable circuits require the quantification of the mutual heating component between the groups of circuits. This example is for multiple groups of circuits in air on the same cable ladder. This article will discuss the IEC 60287 approach.
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