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...

One of the requirements to ensuring that everything works is to have equipment selected, manufactured and verified [tested] to IEC standards. Not all equipment...

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...

Request to look at induction motor starting time have come up a few times on the site. Hopefully in this post, I give you guys some idea on how to calculate...

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

Cable insulation is used to provide electrical separation between conductors of  a cable.  During the historical development of cables, numerous types...

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

This morning I was explaining how differential protection works to a junior engineer. To give him something to read I opened up the NPAG (Network Protection...

Installation of a UPS can help in reducing problems due to issues with the power supply.  A lot of people relate this to nine key issues.  Depending on...

This article gives an introduction to IEEE 485 method for the selection and calculation of battery capacity.