Three phase systems are derived from three separate windings, either connected in delta or star (wye). Each winding can be treated separately, leading...

I received this question by email a few weeks. First thoughts was that it is a product of the mathematics of rotating a straight conductor in a magnetic...

We've been sending out Newsletters on a regular basis for a few weeks now. To do this we have been using Google's Feedburner service. While Feedburner...

A lot of our members work in countries where PPE (personal protective equipment) is regulated or they work for companies/organizations which take employee...

If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...

The robot folding towels post below was interesting enough at the time to post a link.  Recently I’ve come across a couple of other interesting videos...

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...

One of the comments on my Motor Starting Series was asking for something on duty cycles. Here it is. As a purchaser of a motor, you have responsibility...

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...

A recurring theme on our forums is cable sizing. Now many installations are unique and require special consideration. However, a lot of the time things...