System for transferring load between sources

Details System for transferring load between sources System for transferring load between sources

H - Electricity

02

J

H02J 1/00 (2006.01)

Patent

CA 2518122

A method and system for transferring a load (20) from a first AC voltage source (R) to a second AC voltage source (S). A temporary voltage source (T) is connected to the load and the first voltage source via a resistor. The first voltage source is disconnected from the load. The second voltage source is connected to the load. Finally, the temporary voltage source is disconnected from the load. The temporary voltage source may be independent of the first and second voltage sources, or may obtain voltage from the first or second voltage sources. The connecting and disconnecting is done by mechanical switches, by thyristors, or by mechanical switches and thyristors in parallel or in series.

La présente invention a trait à un procédé et un système permettant le transfert d'une charge d'une première source de tension alternative à une deuxième source de tension alternative. Une source de tension temporaire est reliée à la charge et à la première source de tension via une résistance. La première source de tension est déconnectée de la charge. La deuxième source de tension est connectée à la charge. Enfin, la source de tension temporaire est déconnectée de la charge. La source de tension temporaire peut être indépendante des première et deuxième sources de tension, ou peut obtenir la tension à partir des première et deuxième sources de tension. La connexion et déconnexion est effectuée au moyen de contacteurs mécaniques, de thyristors, ou de contacteurs mécaniques et thyristors en parallèle ou en série.

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