Fundamental electrical engineering concepts and theory
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...
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...
GE have put together a time-lapse video shown flight take-off and landings at some airports. An interesting view:
When sizing cables nearly, everyone uses some form of software. This ranges from homespun spreadsheets to complex network analyses software. Each has its...
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...
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...
Laplace transforms and their inverse are a mathematical technique which allows us to solve differential equations, by primarily using algebraic methods...
The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.
Variable frequency drives are widely used to control the speed of ac motors. This note looks at the mechanisms which enable drive units to control the...
Collection of links to various places with useful motor information. I’ll try and return to the page every now and again to update it with any motor notes...
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