Traditionally generation of electricity has involved rotating machines to produce alternating sinusoidal voltage and current (a.c. systems). With the development...

Motor starting and its associated problems are well-known to many people who have worked on large industrial processes. However, these things are, of course...

Control theory looks at how systems work and are controlled from a mathematical view.  This note gives a brief introduction to some of the concepts – more...

Most installations involve some form of lightning protection system which is connected to an earth electrode.  The function of the earth electrode is to...

When current flows within a wire, a magnetic field is created. The potion of this magnetic field perpendicular to the wire is called the magnetic flux...

Light Emitting Diodes (LED ) are increasing gaining favour in both the domestic and commercial sectors; due to their efficiency, sustainability and durability...

Maxwell's Equations are a set of fundamental relationships, which govern how electric and magnetic fields interact. The equations explain how these fields...

Some colleagues had an issue earlier in the week on sizing conduits to be cast in concrete for some power cables . It became clear that none of us had...

Visitors who like to type web address rather then click menus may be interested in how our URL structure works.

Fault calculations are one of the most common types of calculation carried out during the design and analysis of electrical systems. These calculations...