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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
Cross-section of a cable duct in soil showing airflow patterns: warm air rises in the center, cool air descends by the wall, and heat is conducted into the soil.
9 mins read

Ampacity of Multiple Cable Circuits in a Duct

Accurate ampacity for multiple cable circuits in a duct using FEM: Learn how mutual heating and duct arrangement impact safe, efficient cable design in solar PV systems.
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.
A software interface screen displaying a pop-up for creating a new electrical calculation. Various calculation options such as "Voltage Drop" and "Maximum Demand" are listed.
7 mins read

Top 3 Electrical Engineering Design Software for Australia

We've reviewed the top 3 electrical engineering design software packages in 2024 that are designed for Australian conditions and electrical standards. We've compared the features, capabilities, pricing, and technical support.
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.
A graph displays time-current curves with a blue and red shaded areas, showing time (s) on the y-axis and current (A) on the x-axis, both on logarithmic scales.
2 mins read

A Step-by-Step Protection Coordination Study Example

Learn how to set and coordinate circuit breakers to meet AS/NZS 3000:2018, ensuring faults are isolated quickly and safely in electrical systems.
Screenshot of high voltage cable rating software
7 mins read

CYMCAP vs. ELEK Cable HV Software

The features of ELEK Cable HV software and CYMCAP software are compared in detail.
Four electrical cables cross underground, emitting a glowing red light at the intersection point, indicating heat or energy transfer, with soil visible around the cables.
9 mins read

Cable Crossings and Ampacity

How cable crossings affect ampacity and current rating. Covers thermal hotspots, crossing angle, separation, and a practical HV case study.
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.
Flowchart showing a series of squares, some filled red, on a path moving upward toward a "Higher Priority" label with an arrow on the right side.
4 mins read

Practical Guide to Selective Protection Coordination

Learn how to set priorities and adjust protective devices for selective coordination to isolate faults and minimise outages in electrical systems.
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