The IEC publishes a series of documents and rules governing the preparation of documents, drawings and the referencing of equipment.   Depending on country...

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

Gauss's Electrical law defines the relation between charge ("Positive" & "Negative") and electric field.  The law was initially formulated by Carl Friedrich...

A single phase system is perhaps the most common type of system most people are familiar with. This is what people have in their homes and what appliances...

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...

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

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...

This is the first of two posts on the resistance of conductors. In the next post I will look at the ac resistance, including skin effect and we deal with...

A couple of months ago I came Microsoft's OneNote and downloaded the 60 day free trail. Since then I have been using it regularly and now have a full license...

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