The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.
Three phase systems are derived from three separate windings, either connected in delta or star (wye). Each winding can be treated separately, leading...
Electromagnetic compatibility (EMC) is the study of coordinating electromagnetic fields give off equipment, with the withstand (compatibility) of other...
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...
Problems on achieving maximum voltage drop within an installation come up often. Depending where you live, local regulations will have different limits...
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...
This post is quick introduction and overview to different railway electrification voltages used in answer to a question sent in via email. While there...
myElectrical does not support or promote the use of copyrighted material without the copyright owner's consent. If you believe that material for which...
Electromechanical relays have been the traditional backbone of electrical protection systems. While over recent years these have been replaced by microprocessor...
Using laser optical pulses the random number generator utilizes the time between arrival of random photos to generate the numbers, ensuring true accuracy...
If you have some expert knowledge or experience, why not consider sharing this with our community.
By writing an electrical note, you will be educating our users and at the same time promoting your expertise within the engineering community.
To get started and understand our policy, you can read our How to Write an Electrical Note.