Often document control is dictated by project requirements, for example a particular organisation may have an existing numbering system. Existing company...

Multimeters are undoubtedly the most common item of electrical test equipment in use.  Often it is the first piece of equipment people will turn to when...

Here’s list of some famous scientists. Deliberately short, with the aim to provide a quick memory jog or overview. If your looking for more detailed information...

There are a lot of interesting two page type notes on various medium voltage topics – switchgear, circuit breakers, bus systems etc. It is on the Siemens...

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

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

I've been considering a blog on the 110 or 230 Volt issue for a while.  While browsing the Internet I came across a great summary by Borat over at  engineering...

Modelica is an open source (free) software language for modelling complex systems. Having never used it before, I thought I would download a development...

Cable insulation is used to provide electrical separation between conductors of  a cable.  During the historical development of cables, numerous types...

Variable frequency drives are widely used to control the speed of ac motors.  This note looks at the mechanisms which enable drive units to control the...