Fundamental electrical engineering concepts and theory
Lead acid batteries are cost effect and reliable, making them suitable for many applications.This note examines topics of interest associated with the...
This post is quick introduction and overview to different railway electrification voltages used in answer to a question sent in via email. While there...
Alternating current (a.c.) is the backbone of modern electrical power distribution. In this article I’ll be pulling some of the more important concepts...
Capacitors have numerous applications in electrical and electronic applications. This note examines the use of capacitors to store electrical energy....
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...
Control theory looks at how systems work and are controlled from a mathematical view. This note gives a brief introduction to some of the concepts – more...
The term 'N+1' relates to redundancy and simply means that if you required 'N' items of equipment for something to work, you would have one additional...
A frequent problem in fault calculations is the obtaining of equipment parameters. While it is always preferable to use the actual parameters of the equipment...
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...
ABB has produced a range of technical guides that offer concise explanations of the major technologies and technical issues in low voltage AC drives. ...
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