I have been thinking recently that there appears to be less professional integrity around than when I first started my career in electrical engineering...

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...

One of the comments on my Motor Starting Series was asking for something on duty cycles. Here it is. As a purchaser of a motor, you have responsibility...

Nikola Tesla was born exactly at midnight on July 10, 1856 in the tiny village of Smiljan, Lika in Croatia. In his late teens, Tesla left the village to...

I've recently come across this question a couple times browsing the internet. Decided to give a quick answer here. A rectifier transformer is a transformer...

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

Our question and answer system while letting you do exactly what it says, is much more.  It is a dynamic user driven system, where our users not only ask...

Lead acid batteries are cost effect and reliable, making them suitable for many applications.This note examines topics of interest associated with the...

Electromechanical relays have been the traditional backbone of electrical protection systems.  While over recent years these have been replaced by microprocessor...

The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.