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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
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Electrical Software
ELEK Software Grounding Earthing cables on copper bar 1 1170x585 - Articles - Low Voltage Design
6 mins read

Protective Earth Cable Sizing

This article explains how to properly size earth conductors for earth faults and includes the method, equations, constants you can use and worked examples to follow.
Circuit breakers 1 1170x585 - Articles - Low Voltage Design
9 mins read

Protection Coordination Requirements from Standards

There are several international Standards (AS/NZS, BS and IEC) which cover requirements for protection coordination of low voltage electrical systems and this article provides a summary of those as a reference.
Voltage Rise Calculation Report Template 1170x585 - Articles - Low Voltage Design
1 min read

Voltage Rise Report Template

Download the attached PDF report template and use it for your solar connection applications.
Cable Pulling on Rollers 1 1170x585 - Articles - Low Voltage Design
5 mins read

Cable Pulling Tension Calculations

This article explains how to perform cable pulling tension and sidewall pressure calculations and also includes an example.
Vehicle charging 1 1170x585 - Articles - Low Voltage Design
3 mins read

Automatic Maximum Demand Calculations

The new maximum demand module provides fast and accurate calculations for loads in accordance with rules from the Standards and for custom loads. An ingenious automatic phase balancing algorithm ensures maximum demand and phase imbalance are both minimised.
HV Cables Single Cores in the Ground 1170x585 - Articles - Low Voltage Design
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.
Solar panels on Sydney building 1 1170x585 - Articles - Low Voltage Design
5 mins read

Voltage Rise Calculations

Voltage rise can occur in solar PV systems on the AC side between the power inverters and network connection point. Voltage rise calculations are no different to those for voltage drop.
LV Power Cables on Drums small ELEK Software 1170x585 - Articles - Low Voltage Design
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.
A diagram illustrating the cellular process of a cell cycle.
5 mins read

Understanding Earth Fault Loop Impedance

The purpose of this document is to provide a better understanding of Fault Loop Impedance, also referred to as Earth Fault Loop Impedance so that the requirements of AS/NZS 3000 Wiring Rules for safety, design, installation and testing of electrical installation may be met.
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