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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
Three large electrical cables and one smaller cable are placed together in an underground trench surrounded by soil and a sand bedding layer.
2 mins read

New Feature: Earth Continuity Conductor (ECC) Modelling

ELEK Cable HV V9.5 adds Earth Continuity Conductor modelling and optimisation, improved transient calculations, faster FEM studies and more.
Snow-covered electrical substation with transformers, metal structures, and power lines under a cloudy sky; mountains visible in the background.
14 mins read

Seasonal Soil Resistivity Correction for Earthing Design

Soil resistivity measured on one day does not represent the year. How to correct it for temperature and moisture, and what it does to touch voltages.
Several black cables are laid side by side in a trench filled with sand and soil, likely for underground installation or utility work.
6 mins read

Achieving Accurate Transient HV Cable Ratings

Accurate transient HV cable ratings achieved - ELEK Cable HV software matches CIGRE WG B1.72 and performs IEC 60853 compliant emergency and cyclic ratings.
Diagram showing CPW (Cable Pro Web) as a calculation engine connected to Claude and ChatGPT, indicating compatibility with both AI tools.
2 mins read

New Major Feature: ELEK Cable Pro Web AI

Run verified cable sizing calculations in ChatGPT and Claude using the Cable Pro Web engine. Refine designs conversationally and generate professional reports.
Large electrical cables in an orange conduit are laid in a trench near a solar panel installation on a sunny day.
7 mins read

Dynamic Cable Rating: Calculating Cable Ampacity Under Cyclic Loads

Dynamic cyclic rating of buried cables under daily load profiles. Worked five-feeder example, IEC 60853 basis, soil dry-out, emergency ratings, and FAQs
Earthing Design Software Screenshot
11 mins read

7 Best Earthing & Grounding Design Software Packages (2026)

Comparison of the best earthing and grounding system design software including ELEK SafeGrid, CDEGS, XGSLab, ETAP and more based on technical features and compares price.
A worker in a high-visibility jacket and helmet stands with a tablet at an outdoor electrical substation surrounded by power lines and equipment.
5 mins read

Understanding the Conversion Factor in IEC 60479-1: Body Impedance and Touch Voltage Safety Limits

The IEC 60479-1 Conversion Factor sets how body impedance translates into permissible touch voltage. See how 70%, 80% and 90% values change your design.
Power cables installed, direct buried, representing the installation cases covered by AS/NZS 3008.1.1:2025
10 mins read

New 2025 Cable Sizing Standard AS/NZS 3008.1.1 — What Engineers and Electricians Need to Know

Seven major changes in AS/NZS 3008.1.1:2025 for cable sizing — new DC tables, multi-row correction factors, 110 °C aluminium ratings, voltage rise, and short-circuit limits.
Digital illustration of an electrical substation with blue and orange energy flows, representing the transfer and distribution of electrical power in a grid network.
6 mins read

CDEGS vs. ELEK SafeGrid Software

Compare CDEGS vs ELEK SafeGrid for earthing design software. See differences in features, soil modelling, safety calculations, accuracy, and usability for substation earthing design.
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