Distribution Grid Protection

Abstract

the protection devices constantly monitor the electrical state of the elements of a network and cause them to be de-energized (for example the opening of a circuit-breaker), when these elements are the seat of an undesirable disturbance: short-circuit, lack of insulation, surge, etc. The choice of a protective device is not the result of isolated reflection, but one of the most important steps in the design of an electrical network.From the analysis of the behavior of the electrical equipment’s (motors, transformers, cables, etc.) On defects and the phenomena which result from it, one chooses the most adapted protection devices that are what one goes present in this article.