Over the past year or so I've been involved in on going discussions related to referring fault levels from the secondary of a transformer to the primary...

HTML supports a variety of entity symbols which can be entered using either numbers or an entity name.  The number or name is preceded by the ‘&’ sign...

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

If you at all familiar with programs like office and outlook, then adding and editing posts is pretty straightforward and intuitive.  However, there are...

Anyone specifying or using electric motors should have a basic understanding how the insulation is related to temperature. Three classes of insulation...

The (relatively new) switchgear and control gear standard, IEC 61439 'Low-voltage switchgear and controlgear assemblies' has three methods which can be...

Traditionally substations have used circuit breakers, current transformers (CT), voltage transformers (VT) and protection relays all wired together using...

We have had the Wiki with us for a long time now, but at last I have decided to say bye bye – more details on why below.

I was reminded of Occam's Razor while reading a book. It's quite a simple principal of logic which has stood the test of time and is accepted as central...

When selecting a cable, the performance of the cable under fault conditions is an important consideration. It is important that calculations be carried...