Over the past year or so I've been involved in on going discussions related to referring fault levels from the secondary of a transformer to the primary...

I have been thinking recently that there appears to be less professional integrity around than when I first started my career in electrical engineering...

This article gives an introduction to IEEE 485 method for the selection and calculation of battery capacity.

The IEC publishes a series of documents and rules governing the preparation of documents, drawings and the referencing of equipment.   Depending on country...

Exposure to time varying magnetic fields, from power frequencies to the gigahertz range can have harmful consequences.  A lot of research has been conducted...

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

If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...

A couple of months ago I came Microsoft's OneNote and downloaded the 60 day free trail. Since then I have been using it regularly and now have a full license...

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...

While not as popular as it once was, frame leakage protection does still have some use in some circumstances.  In essence frame leakage is an earth fault...