0

Your Cart

0
Subtotal: USD0
No products in the cart.

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.

Join 23K+ engineers and get our latest technical articles direct to your inbox as they are released – Jayson Patrick

This field is for validation purposes and should be left unchanged.
Photo of Jayson Patrick for Technical Articles page about electrical power systems Design

Choose the article category

Latest
Popular
Low Voltage Design
Earthing Design
High Voltage Cable Design
Arc Flash Studies
ELEK vs Competitors
Electrical Software
Graph comparing the relationship between distance and resistance in electrical systems and renewable energy sources.
9 mins read

Testing of Earthing Systems

Provides test procedures based on the fall of potential method and actual touch and step voltage measurements for the purpose of validating a safe earthing design. Includes procedures for both large or small earthing systems, safety requirements (for undertaking the tests) and recommended testing equipment.
Arc Flash Draw Out Large Circuit Breaker ELEK Software small 1 1170x585 - Popular
8 mins read

Understanding Arc Flash Hazards

Electrical equipment operating at or above 50 V AC or 120 V DC which will not put into a deenergised state during work must be evaluated for arc flash and shock protection. Three types of activities of workers carry the highest risk of arc flash. Three main factors determine the severity of an arc flash injury.
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.
ELEK Software Grounding Earthing cables on copper bar 1 1170x585 - Popular
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.
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.
Lightning strike on substation 1 1 1170x585 - Popular
6 mins read

Lightning Protection Design for Substations

Direct lightning strikes to substations causes physical damage and poses hazards for people.
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 an electrical panel displaying several circuit breakers, labeled with yellow tags such as QF1, QF2, and QF6, and connected by various colored wires.
3 mins read

The Ultimate MCB Protective Device Selection Guide

Miniature Circuit Breakers (MCBs) protect against overcurrent in electrical circuits. MCBs are categorised based on their tripping characteristics, represented by different device curves such as Z, B, C, K, and D. This article offers guidance on selecting the right type for your application.
NEC cable sizing calculation example showing 4/0 AWG conductor selection with ampacity, voltage drop, and NFPA 70 electrical code reference
14 mins read

How to Size Cables Using NEC (With Calculation Examples)

Learn how to size cables using NEC (NFPA 70) with step-by-step calculation examples, including ampacity, voltage drop, OCPD, and EGC sizing.
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors