GE have put together a time-lapse video shown flight take-off and landings at some airports. An interesting view:

Coils of wire on the rotor carry a d.c. current which generates a magnetic field. A stator magnetic field is created using either permanent magnets or...

The 27 km, Euro 6 billion  Collider lies on the border between France and Switzerland, took nearly 30 years to complete.  Some of the lofty goals for the...

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

The correct sizing of current transformers is required to ensure satisfactory operation of measuring instruments and protection relays. Several methods...

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...

Most installations involve some form of lightning protection system which is connected to an earth electrode.  The function of the earth electrode is to...

Power cables can basically be classified into earthed and unearthed cables, where earthed and unearthed refer to the application for which the cable is...

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

Three phase systems are derived from three separate windings, either connected in delta or star (wye). Each winding can be treated separately, leading...