Process for monitoring electrical wear on high-voltage...

H - Electricity – 01 – H

Patent

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Details

H01H 50/08 (2006.01) G01R 31/327 (2006.01) H01H 1/00 (2006.01)

Patent

CA 2202544

This invention comprises a monitoring process for electrical wear on switchgear (S11, S12) in a bay (T1) of a high-voltage station consisting of a set of splitter bars (B1, B2) connected to at least three electrical circuits consisting of input bays (T3) and output bays (T1, T2). When the load is moved from the bay (T1), and the corresponding bay computer (C1) detects that the switches (S11, S12) on the connections to the splitter bars (B1, B2) are closed, the computer sends a message to the other computers (C2 to C4), which determine and record the value and polarity of the current in their respective bays (T2 to T4); when the computer (C1) on the bay (T1) detects that the switch (S11) on the connection to the splitter bar (B1) from which the transfer is being made is open, the values prior to opening are memorized, and the square of the current cut by the switch (S11) is calculated.

La présente invention concerne un procédé de surveillance de l'usure électrique des sectionneurs d'aiguillage (S11, S12) d'une travée (T1) d'un poste haute tension comportant un jeu de barres de distribution (B1, B2) relié à au moins trois circuits électriques constitués de travées d'entrée (T3) et de sortie (T1, T2) et d'une travée de couplage (T4) des barres (B1, B2). Lors d'un transfert en charge de la travée (T1), lorsque le calculateur de travée (C1) correspondant détecte que les sectionneurs (S11, S12) des lignes de connexion aux barres de distribution (B1, B2) sont fermés, ce dernier envoie un message aux autres calculateurs (C2 à C4) qui déterminent et enregistrent les données que sont la valeur et la polarité du courant de leur travée (T2 à T4) et lorsque le calculateur (C1) de la travée (T1) a détecté l'ouverture du sectionneur d'aiguillage (S11) de la ligne de connexion à la barre (B1) dont la distribution est transférée, lesdites données antérieures à l'ouverture sont mémorisées et la valeur du carré du courant coupé par ledit sectionneur (S11) est calculée.

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