What is a zero sequence reactor?

A zero sequence reactor is a type of electrical device used in power systems to manage and mitigate the effects of ground faults. It operates by providing a low impedance path for zero sequence currents, which are the unbalanced currents that occur during ground fault conditions. This helps to limit fault currents, improve system stability, and protect equipment from damage. Zero sequence reactors are typically connected in the neutral of Transformers or generators in electrical networks.