We are pleased to present below all posts archived in 'June 2009'. If you still can't find what you are looking for, try using the search box.
Years ago I was told that you should always try to write the best report you can. Many years later I still think on this as one of the better pieces of advice. Not only does this apply ... read more..
Often us engineers get so bogged down in equations, using software, producing drawings and writing specifications that this becomes the sole focus. Good engineering design needs to go b... read more..
The windings of many medium and small sized transformers are protected by restricted earth fault (REF) systems. The illustration shows the principal of...
A fundamental concept behind the operation of alternating current systems is that voltage and current waveforms will be sinusoidal – a Sine Wave. This...
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...
IEC 60228 is the International Electrotechnical Commission's international standard on conductors of insulated cables. Among other things, it defines a...
Just added a page to the tools, which will allow you to calculate the synchronous speed, slip and rated torque for an induction motor. Not a particularly...
Using software in our work is essential for most of us and we are becoming even more dependant on it's use. While software is a great asset, many times...
myElectrical does not support or promote the use of copyrighted material without the copyright owner's consent. If you believe that material for which...
Various techniques exist to enable the correct selection of batteries for UPS applications. The procedure described below is one of the more common. ...
IEC 60287 "Calculation of the continuous current rating of cables (100% load factor)" is the International Standard which defines the procedures and equations...
Most installations involve some form of lightning protection system which is connected to an earth electrode. The function of the earth electrode is to...
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