One of the requirements to ensuring that everything works is to have equipment selected, manufactured and verified [tested] to IEC standards. Not all equipment...

The calculation of current in a three phase system has been brought up on our site feedback and is a discussion I seem to get involved in every now and...

Electrical notes are a collaborative collection of electrical engineering information and educational material. Any registered user can add content. ...

Using laser optical pulses the random number generator utilizes the time between arrival of random photos to generate the numbers, ensuring true accuracy...

Many questions sent in to the site are in connection with motor starting and in particular star-delta.  For all but the simplest application, there is...

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...

The image (reproduced from IEC 60909) shows a typical fault in an ac system.  From the illustration it can seen that there is an initial dc component ...

Often document control is dictated by project requirements, for example a particular organisation may have an existing numbering system. Existing company...

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...

GE's latest thinking on product manufacturing is he Shingijutsu philosophy or Lean production system. They have started applying this at the Louisville...