In three phase systems, the use of transformers with three windings (or legs) per side is common.  These three windings are often connected in delta or...

We have had the Wiki with us for a long time now, but at last I have decided to say bye bye – more details on why below.

In electrical engineering, Network Theory is the study of how to solve circuit problems. By analyzing circuits, the engineer looks to determine the various...

When selecting a cable, the performance of the cable under fault conditions is an important consideration. It is important that calculations be carried...

It's been a busy few months on different projects or busy couple of decades depending on how I look at it. I can say that on the odd (frequent) occasion...

IEEE TV has a part series of videos on wind power and it's implication. For a really good overview to the technologies and issues around wind power, these...

Carrying out a protection system discrimination study is critical to ensure the correct functioning of  the electrical system in the event of faults. ...

MIT OpenCourseWare, makes the materials used in teaching all MIT subjects available on the Web, free of charge, to any user in the world.

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

Fire resistant and fire retardant cable sheaths are design to resist combustion and limit the propagation of flames. Low smokes cables have a sheath designed...