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...

Lamps are the essential part of any luminaire. These are the light generating components. Since the advent of electrical lighting in the middle of 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...

The other day I came across an article in Technology Review on the development of a smart transformer. A professor at North Carolina State University is...

It wasn't so long ago I was telling someone that I don't use rules of thumb as most things are easily calculated anyhow.   As it turns out I last week...

Electromechanical relays have been the traditional backbone of electrical protection systems.  While over recent years these have been replaced by microprocessor...

Collection of links to various places with useful motor information. I’ll try and return to the page every now and again to update it with any motor notes...

Multimeters are undoubtedly the most common item of electrical test equipment in use.  Often it is the first piece of equipment people will turn to when...

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...

Some colleagues had an issue earlier in the week on sizing conduits to be cast in concrete for some power cables . It became clear that none of us had...