Selection of Neutral Grounding Reactor for Line to Ground Fault

Abstract

Single line to ground faults are the most prominent faults in the power system. This may damage the generators and transformers in the system ultimately leading to its failure. Introducing a neutral grounding reactor between the neutral and ground in the high voltage system, will reduce the fault current and hence will protect the power system components. The paper will discuss the operation, application and selection of the neutral grounding reactor for power system devices protection and secondary arc quenching.