Earthing Design of Substation - Sharing Experiences on Points to Ponder

As the power system is growing day by day, people dealing with it have understood the importance of earthing system. Role of earthing arrangement in any power system in safety of personnel and equipment, performance of the system, and many more aspects are now appreciated by the users.

This paper describes the importance of selection of inputs which is the backbone of design and entire system and performance of that installation relies on those input parameters considered for the design. That’s why several points need to ponder while selection and interpretation of procedure/method laid down in the standards. It also describes the various techniques used for the earthing system design and when particular method is suitable to use.