**IEEE Winds of Change**
IEEE TV has a part series of videos on wind power and it's implication. For a really good overview to the technologies and issues around wind power, these...

**Alternating Current Circuits**
Alternating current (a.c.) is the backbone of modern electrical power distribution. In this article I’ll be pulling some of the more important concepts...

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

**What is a rectifier transformer?**
I've recently come across this question a couple times browsing the internet. Decided to give a quick answer here. A rectifier transformer is a transformer...

**Motor Starting - Introduction**
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...

**Photovoltaic (PV) Panel - Performance Modelling**
In an earlier note on the site [Photovoltaic (PV) - Electrical Calculations], the theory of solar (PV) cell calculations was introduced. In particular...

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

**Why a Sine Wave?**
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...

**The dc resistance of conductors**
This is the first of two posts on the resistance of conductors. In the next post I will look at the ac resistance, including skin effect and we deal with...

**Low Voltage Fault Tables**
The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.