One of the most misunderstood and confused concept is difference between Grounding and Earthing. There is no major difference between earthing and Grounding, both means “Connecting an electrical circuit or device to the Earth”. This serves various purposes like to drain away unwanted currents, to provide a reference voltage for circuits needing one, to lead lightning away from delicate equipment. Even though there is a micro difference between grounding & earthing.
Video source By_ Learning Engineering
Electrical Earthing means connecting the dead part (the one which does not carry current under normal condition) to the earth. For example electrical equipment frames etc.
Electrical Grounding means connecting the live part (the one which carry current under normal condition) to the ground. For example neutral of transformer, 3- ph star connection etc.
