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...

I was having a conversation the other day about voltage levels.  While everyone was in agreement that low voltage was 1000 V and less, there was more confusion...

How often installations are inspected is up to the owner of the installation, provided such durations do not exceed any regulatory maximums in force. ...

The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.

IEC 60228 is the International Electrotechnical Commission's international standard on conductors of insulated cables. Among other things, it defines a...

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...

Depending where in the world you work, you are likely following one of two standards International Electrotechnical Commission (IEC) National...

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

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...

Often us engineers get so bogged down in equations, using software, producing drawings and writing specifications that this becomes the sole focus.   ...