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)...
Most installations involve some form of lightning protection system which is connected to an earth electrode. The function of the earth electrode is to...
When making adding a Note to our site we have a great online WYSIWYG editor and things are pretty simple. However, if you prefer you can write, manage...
This post is quick introduction and overview to different railway electrification voltages used in answer to a question sent in via email. While there...
The windings of many medium and small sized transformers are protected by restricted earth fault (REF) systems. The illustration shows the principal of...
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...
One of the fundamental requirements of an alternating current distribution systems it to have the ability to change the magnitude of voltages. It is more...
GE have put together a time-lapse video shown flight take-off and landings at some airports. An interesting view:
Resistors are electronic components that oppose the flow of current. Manufactured in various types and ranges they have a wide application to electronics...
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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