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

Years ago I was told that you should always try to write the best report you can.  Many years later I still think on this as one of the better pieces of...

Low voltage (LV) switchrooms are common across all industries and one of the more common spatial requirements which need to be designed into a project...

Working in the vicinity of electrical equipment poses an hazard. In addition to electric shock hazard, fault currents passing through air causes Arc Flash...

Earthing of electrical systems is essential for the correct functioning and the protecting of life and equipment in the event of faults.  The earth electrode...

Installation of a UPS can help in reducing problems due to issues with the power supply.  A lot of people relate this to nine key issues.  Depending on...

When looking at the design of a lighting scheme it is useful to have an understanding on the nature of light itself and some of the basic theory associated...

Circuit breakers are switching devices whose primary function is to isolate parts of an electrical distribution system in the even of abnormal conditions...

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.

Three phase systems are derived from three separate windings, either connected in delta or star (wye). Each winding can be treated separately, leading...