A single phase system is perhaps the most common type of system most people are familiar with. This is what people have in their homes and what appliances...

In an earlier note on the site [Photovoltaic (PV) - Electrical Calculations], the theory of solar (PV) cell calculations was introduced.  In particular...

Many medium voltage (MV) indoor switchgear rooms  exist worldwide. The complexity of these rooms varies considerably depending on location, function and...

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

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

In 2011, with the introduction of it’s Panda search ranking algorithms, Google introduced tools for determining the original author of posts.  The intention...

From the earliest times, humans have found ways to create light. Pre-historic peoples used natural materials (moss, grass, etc.) soaked in animal fat and...

We have had the Wiki with us for a long time now, but at last I have decided to say bye bye – more details on why below.

Following on from my post on railway electrification voltages, I thought an introduction to traction substations would be a good idea. Traction substations...

Request to look at induction motor starting time have come up a few times on the site. Hopefully in this post, I give you guys some idea on how to calculate...