One of the fundamental requirements of an alternating current distribution systems it to have the ability to change the magnitude of voltages.  It is more...

Modelica is an open source (free) software language for modelling complex systems. Having never used it before, I thought I would download a development...

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...

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

There are a lot of interesting two page type notes on various medium voltage topics – switchgear, circuit breakers, bus systems etc. It is on the Siemens...

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...

A single phase system is perhaps the most common type of system most people are familiar with. This is what people have in their homes and what appliances...

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...

The standard aims to consolidate AC and traction voltages within the industry and defines the following bands: band 1 - A.C. systems 100 V to 1...

ABB has produced a range of technical guides that offer concise explanations of the major technologies and technical issues in low voltage AC drives. ...