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The windings of many medium and small sized transformers are protected by restricted earth fault (REF) systems. The illustration shows the principal of...

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...

Gauss's Electrical law defines the relation between charge ("Positive" & "Negative") and electric field.  The law was initially formulated by Carl Friedrich...

Depending where in the world you work, you are likely following one of two standards International Electrotechnical Commission (IEC) National...

In an earlier note on the site [Photovoltaic (PV) - Electrical Calculations], the theory of solar (PV) cell calculations was introduced.  In particular...

Everything physical in electrical engineering from insulations to conductors revolves around materials. Here we are listing common materials along with...

Straight forward list of some common motor faults.  If I have missed any other common faults, please take a bit of time to add them in as a comment below...

Electrical engineering is a field that covers a wide variety of sub-fields, including electricity and electronics. It is a field that goes back to the...

This is the second post in a series of two on periodic electrical inspections. In the first post, I discussed how often inspections should be carried out...