Fundamental electrical engineering concepts and theory
How often installations are inspected is up to the owner of the installation, provided such durations do not exceed any regulatory maximums in force. ...
Most installations involve some form of lightning protection system which is connected to an earth electrode. The function of the earth electrode is to...
Electrical engineering has a multitude of laws and theorems. It is fair to say the Ohm's Law is one of the more widely known; it not the most known. Developed...
The (relatively new) switchgear and control gear standard, IEC 61439 'Low-voltage switchgear and controlgear assemblies' has three methods which can be...
Sometimes it’s useful to be able to quickly lookup a piece of technical information. This note is a collection of information related to motors, and in...
Power factor is the ratio between the real power (P in kW) and apparent power (S in kVA) drawn by an electrical load. The reactive power (Q in kVAr)...
The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.
Lead acid batteries are cost effect and reliable, making them suitable for many applications.This note examines topics of interest associated with the...
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...
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...
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