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...

I was having a conversation the other day about voltage levels.  While everyone was in agreement that low voltage was 1000 V and less, there was more confusion...

Visitors who like to type web address rather then click menus may be interested in how our URL structure works.

Using software in our  work is essential for most of us and we are becoming even more dependant on it's use.  While software is a great asset, many times...

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...

Electric motors are one of the most widely used items of electrical equipment. Improving motor efficiency benefits include, reduced power demand, lower...

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

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

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