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

This post is quick introduction and overview to different railway electrification voltages used in answer to a question sent in via email. While there...

Estimating maximum demand is a topic frequently discussed. Working out how much power to allow for a building can be very subjective . Allowing too much...

Traditionally substations have used circuit breakers, current transformers (CT), voltage transformers (VT) and protection relays all wired together using...

Capacitors are widely used in electrical engineering for functions such as energy storage, power factor correction, voltage compensation and many others...

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

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"I can live with doubt and uncertainty and not knowing. I think it is much more interesting to live not knowing than to have answers that might be wrong...

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...

Traditionally generation of electricity has involved rotating machines to produce alternating sinusoidal voltage and current (a.c. systems). With the development...