A frequent problem in fault calculations is the obtaining of equipment parameters.  While it is always preferable to use the actual parameters of the equipment...

The other day I came across an article in Technology Review on the development of a smart transformer. A professor at North Carolina State University is...

Collection of links to various places with useful motor information. I’ll try and return to the page every now and again to update it with any motor notes...

IEEE TV has a part series of videos on wind power and it's implication. For a really good overview to the technologies and issues around wind power, these...

Electrical notes are a collaborative collection of electrical engineering information and educational material. Any registered user can add content. ...

The image (reproduced from IEC 60909) shows a typical fault in an ac system.  From the illustration it can seen that there is an initial dc component ...

For the past few years I have reading eBooks on my HTC touch phone. On and off I have debated buying an eReader and recently purchased a Sony PRS-300 ...

A UPS is an uninterruptible power supply.  It is a device which maintains a continuous supply of electrical power, even in the event of failure of the...

One of the requirements to ensuring that everything works is to have equipment selected, manufactured and verified [tested] to IEC standards. Not all equipment...

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