Fundamental electrical engineering concepts and theory
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...
Two driverless and solar power vans have departed from Italy on their way to China via the silk road. During the 13,000 kM trip the vans will drive themselves...
IEC 60287 "Calculation of the continuous current rating of cables (100% load factor)" is the International Standard which defines the procedures and equations...
Problems on achieving maximum voltage drop within an installation come up often. Depending where you live, local regulations will have different limits...
The other day I was reading 'Night of the New Magicians' by Mary Pope Osborn with my son. The story is about a young boy and girl who travel back in time...
When sizing cables nearly, everyone uses some form of software. This ranges from homespun spreadsheets to complex network analyses software. Each has its...
GE have put together a time-lapse video shown flight take-off and landings at some airports. An interesting view:
In 2011, with the introduction of it’s Panda search ranking algorithms, Google introduced tools for determining the original author of posts. The intention...
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...
If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...
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