Many questions sent in to the site are in connection with motor starting and in particular star-delta.  For all but the simplest application, there is...

When making adding a Note to our site we have a great online WYSIWYG editor and things are pretty simple.  However, if you prefer you can write, manage...

Insulation on a motor prevents interconnection of windings and the winding to earth.  When looking at motors, it is important to understand how the insulation...

Motor starting and its associated problems are well-known to many people who have worked on large industrial processes. However, these things are, of course...

Electrical engineering has a multitude of laws and theorems. It is fair to say the Ohm's Law is one of the more widely known; it not the most known. Developed...

This post is quick introduction and overview to different railway electrification voltages used in answer to a question sent in via email. While there...

In a previous article I looked at the dc resistance of conductors and in this article we turn our attention to ac resistance. If you have not read the...

I have been thinking recently that there appears to be less professional integrity around than when I first started my career in electrical engineering...

Years ago I was told that you should always try to write the best report you can.  Many years later I still think on this as one of the better pieces of...

Photovoltaic (PV) systems are typically more efficient when connected in parallel with a main power gird. During periods when the PV system generates energy...