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...

Electrical engineering is a field that covers a wide variety of sub-fields, including electricity and electronics. It is a field that goes back to the...

When selecting a cable, the performance of the cable under fault conditions is an important consideration. It is important that calculations be carried...

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

The calculation of current in a three phase system has been brought up on our site feedback and is a discussion I seem to get involved in every now and...

Various arguments exist around SF6 Gas Insulated (GIS) and Air Insulated (AIS) medium voltage switchgear. Recently we had to change a GIS design to AI...

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

Coils of wire on the rotor carry a d.c. current which generates a magnetic field. A stator magnetic field is created using either permanent magnets or...

Battery powered cars are a hot topic and widely debated. The pros, cons, issues and time frames can be talked about endlessly. An article by the Telegraph...

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