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

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

The widely used United Sates standard ANSI/IEEE C37.2 'Electrical Power System Device Function Numbers, Acronyms, and Contact Designations' deals with...

If you are working on a large plan, get the real coordinates [latitude, longitude] for two or more points and add them to the drawing. That way you can...

For the past few years I have reading eBooks on my HTC touch phone. On and off I have debated buying an eReader and recently purchased a Sony PRS-300 ...

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...

Sometimes it’s useful to be able to quickly lookup a piece of technical information.  This note is a collection of information related to motors, and in...

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

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

The windings of many medium and small sized transformers are protected by restricted earth fault (REF) systems. The illustration shows the principal of...