автоматичне повторне ввімкнення

6–35 kV electrical networks operates with isolated or compensated neutrals. Such mode of a neutral is the reason of emergence of considerable overvoltage in an electrical network during single- phase ground fault (SFGF), especially during short-circuit through an arc and various ferro-resonance phenomena. These overvoltage destroy the insulation of the electrically coupled network.

The article analyzes scientific publications, who showed that for the most part, the study of switching transients in electrical networks during automatic reclosing cycles of circuit breaker, are carried out without taking into account the influence of electromechanical processes in the mechanisms of circuit breaker contacts, despite the fact that the speed of their course is commensurate with the speed of the electromagnetic processes.