POWER SYSTEM GROUNDING AND EARTHING VIRTUAL

High voltage systems require grounding/ earthing system which will reliably protect people from the effects of short-circuits to earth and ground faults. In Electrical Power networks, besides adhering to the requirements for disconnection; potential equalization in general and protective potential equalization in particular are fundamental protective measures against indirect contact. During operation and also in case of faults, electrical energy has an electromagnetic impact on the environment. To ensure faultless operation of equipment within and outside of the system, potential equalization through the grounding system is an important measure, even for high frequencies. Buildings and electrical equipment require lightning protection systems to minimize the risk of personnel injury and also system outages. Thus, potential equalization and grounding are important elements of a lightning protection system.