Cable insulation is used to provide electrical separation between conductors of  a cable.  During the historical development of cables, numerous types...

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

In the previous note we looked at the approach taken by the standard to the sizing of cables and illustrated this with an example.  We then looked at one...

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...

At the beginning of the year China put the world's first 1,000 kV UHV transmission system into operation. Transmitting power at over a million volts is...

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

Dielectrics (insulating materials for example) when subjected to a varying electric field, will have some energy loss.   The varying electric field causes...

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

We have a sister note to this (Robots - Interesting Video), in which I have posted some videos of interesting robots developed by commercial corporations...

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