PROTECTION METHOD OF AN ELECTRICAL DISTRIBUTION AND/OR TRANSMISSION NETWORK AGAINST SHORT-CIRCUITS

The invention relates to a protection method of an electrical distribution and/or transmission network comprising three lines or phases and a neutral or ground line against short-circuits with current injection by at least one electric generator selected from a wind generator or a photovoltaic generator, the method comprises the stages of: (a) detecting short-circuits for an initial classification of the short-circuit as line to ground, line to line and line-line to ground; (b) selecting the faulted phase or phases by means of a first selection criterion; (c) selecting the faulted phase or phases by means of a second selection criterion; and (d) a classification stage of the short-circuits; and wherein, in addition, the stage of selecting the faulted phase or phases are only valid for a period of time defined by a temporarily adaptive window.