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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.

Sign up for my email newsletter and I will send you the latest technical articles as they are released – Jayson Patrick

Photo of Jayson Patrick for Technical Articles page about electrical power systems Design

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Low Voltage Design
Earthing Design
High Voltage Cable Design
Arc Flash Studies
Software Comparisons
Electrical Software
Offshore wind farm with several turbines above water and underwater cables visible, set against a calm sea and a partly cloudy sky.
4 mins read

Thermal Analysis for HVDC Submarine Cables: Meeting the 2 K Criterion

Learn about thermal analysis for HVDC submarine cables, focusing on the 2 K Criterion to minimize environmental impacts.
Cable laying vessel lays cable at sea for an offshore wind farm 1170x585 - Articles
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.
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.
Infographic on power systems earthing standards, featuring diagrams and guidelines for substation earthing, touch/step voltage limits, and testing. Includes industry logos and software ad.
4 mins read

Standards for Power Systems Earthing Design

Experienced electrical engineers created this reference list of standards for power systems earthing/grounding for substations, renewable energy, etc.
Close-up of a high-voltage power cable, showing layers of insulation, copper conductors, and outer black sheath.
5 mins read

Summary of Electric Power Cable History

This article provides a timeline of the key milestones from early 19th century insulated wires through to modern innovations in high-voltage cables.
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.
Close-up of orange industrial cables coiled together, with one frayed open end visible in the foreground.
10 mins read

AS/NZS 3008 Cable Sizing Calculations: Step-by-Step Guide

Size active, neutral, and earth cables using AS/NZS 3008. The guide covers current capacity, voltage drop, and short-circuit calculations with examples.
Diagram showing electric field (E), gravitational field (G), weight (W), and electrostatic force (Fe) acting on a charged oil drop.
10 mins read

Modelling a Fall of Potential Earth Grid Impedance Test

Understand how software simulations enhance grid impedance tests, improving accuracy and efficiency in earthing system design and performance evaluation.
Four thermal maps display varying heat distributions in a target area, with colors ranging from blue (cool) to red (hot).
7 mins read

Advanced Soil Drying for Accurate Ampacity Calculations

New methods address IEC 60287 limitations for soil drying calculations. Considers multiple circuits, load factor, and backfill installations for accurate power cable ampacity.
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