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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
HV Cables Single Cores in the Ground 1170x585 - Popular
2 mins read

Neutral Conductor Sizing

The neutral conductor is required for each primary circuit, and there are rules in the Standards for its sizing.
ELEK Software Vehicle Charging Station 1170x585 - Popular
3 mins read

Touch Voltage Calculations for LV Electrical Systems

The definition of “touch voltage” is the voltage between accessible exposed and extraneous conductive parts that may lead to the risk of electric shock in the event of an electrical fault. This article covers AS/NZS 3000, BS 7671, and NFPA 70E rules concerning touch voltages and provides the equations for calculations.
Cable laying vessel lays cable at sea for an offshore wind farm 1170x585 - Popular
10 mins read

Submarine Power Cable Current Ratings (2025 update)

The calculation of submarine cable current ratings is different from land cables due to their complex construction and installation conditions.
Screenshot of cable sizing calculator software named Cable Pro Web
4 mins read

JCalc vs Cable Pro Web: A Complete Comparison

Cable Pro Web is cheaper with more features than JCalc (which is not free). Choose cable sizing software that scales with your business. This article honestly compares prices, features and ease of use.
A trench with several large orange pipes protruding through a rectangular board. Workers and construction materials are in the background.
5 mins read

Soil Temperature Calculations for Power Engineering

Soil temperature affects high voltage cable and earthing systems. Equations for soil temperature calculations based on air temperature are provided.
figure 4 1170x585 - Popular
10 mins read

Magnetic Fields from High Voltage Power Cables

This article analyses the magnetic fields produced by electrical power cables installed in various configurations under varying conditions in the context of a health and safety-related issue. A software program has been used for calculating the results based on the Biot-Savart law. Techniques for the mitigation of magnetic fields are also presented.
Electricity pylon with insulators against a cloudy sky.
10 mins read

Fault Current Distribution for Cable Transmission Lines

This report explains how to perform accurate earth fault current analysis for substations connected by cable transmission lines. Earth fault currents for simple cable and overhead transmission lines are explained first. Next, two case studies involving hybrid cable transmission lines are presented.
Wind turbine foundation 1170x585 - Popular
13 mins read

Wind Farm Earthing Design and Modelling Guide

The technical guide explains the electrical systems, local WTG and combined earthing system design, touch and step voltage hazards, soil electrical resistivity measurements, earth fault currents, earthing system software modelling, and validation testing of earthing for wind farms.
Attention power cables in the ground ELEK Software 1170x585 - Popular
2 mins read

The 4 Main Causes of HV Cable Failures

A report investigated 6214 cable failures over a 14 year period. The main causes were insulation breakdown, excavation, joints or switchgear failure. The results may surprise you.
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