Various techniques exist to enable the correct selection of batteries for UPS applications.  The procedure described below is one of the more common. ...

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...

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

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

Ever wondered what kind of power an aircraft uses when parked at the airport stand. Normally the aircraft generates it own power, but when parked with...

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...

Problems on achieving maximum voltage drop within an installation come up often. Depending where you live, local regulations will have different limits...

Here’s list of some famous scientists. Deliberately short, with the aim to provide a quick memory jog or overview. If your looking for more detailed information...

‘Kept looking at a card, y’see? Kept looking at it. Welcome back Bottle. Gods below welcome home. The Crippled God A Tale of the Malazan Book of the...

Within Europe the European Committee for Electrotechnical Standardization (CENELEC) has standardised the both the designation and colour of cables.   ...