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

American inventor Thomas Alva Edison was born in Milan, Ohio on February 11, 1847. He was the youngest of seven children and received little formal schooling...

Capacitors have numerous applications in electrical and electronic applications.  This note examines the use of capacitors to store electrical energy....

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...

The International System of Units (abbreviated SI) is the world's most widely used system of units.  The system consists of a set of units and prefixes...

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

Motor starting and its associated problems are well-known to many people who have worked on large industrial processes. However, these things are, of course...

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

"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...

Our IEE cable sizing was wrote a few years ago and had become rough around the edges. I thought it was time to give the tool a service. Unfortunately when...