myElectrical does not support or promote the use of copyrighted material without the copyright owner's consent. If you believe that material for which...

I was reminded of Occam's Razor while reading a book. It's quite a simple principal of logic which has stood the test of time and is accepted as central...

These lifts were first built in 1884 by J. E. Hall and called a paternoster ("Our Father", the first two words of the Lord's Prayer in Latin) due to its...

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...

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  While over recent years these have been replaced by microprocessor...

If you have a great idea or invent something the last thing you want is someone to steal the idea. One of the things you can do is protect the intellectual...

Exposure to time varying magnetic fields, from power frequencies to the gigahertz range can have harmful consequences.  A lot of research has been conducted...

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...

Problems on achieving maximum voltage drop within an installation come up often. Depending where you live, local regulations will have different limits...

A load flow study is the analysis of an electrical network carried out by an electrical engineer. The purpose is to understand how power flows around...