ES420367A1 - Automatic systems for locating a defective portion of a feeder line of a medium voltage electrical power distribution network and for isolating the defective portion from the network - Google Patents

Abstract

Automation device for resuming service for a medium voltage electrical energy distribution network or artery comprising, between two supplies, respectively normal and emergency, arranged on both sides of a cut-off point that defines two complementary arteries, distribution stations equipped with defect detectors and connected to the aforementioned artery cut network, each of these stations being provided with at least one cutting device suitable for automatically interrupting the electrical continuity of the network, thereby delimiting artery sections successive, characterized in that it comprises, at least in some of the aforementioned distribution stations and in association with a cutting apparatus, an emission means adapted to be activated by at least one detector, and to provide a position pulse in an instant defined by a timing depending on its position along the artery, means of reception ion responsive to the aforementioned position impulses, a first and a second selector associated, respectively, to each of the two supplies, an inverting means of activating one or the other of these selectors according to the direction of transit of the energy, being provided These two-branch movable fork selectors move step by step, before an indicator band that defines the successive artery sections with reference to the affected supply, from a common initial position ("0" - "l") corresponding to the section adjacent to the supply in service to an end position ("n" - "n + 1") that defines the faulty section to be isolated, associated switching and tripping means in the mentioned first and second selectors in only one of the positions of the corresponding indicator band, and capable of sending to the associated cutting apparatus an opening command signal in the selective coincidence position between one of the branches of said movable fork and said activated selector switch means, thus eliminating said defective section from the network. (Machine-translation by Google Translate, not legally binding)