Partial discharge detection test link, partial discharge...

G - Physics – 01 – R

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G01R 31/02 (2006.01)

Patent

CA 2397973

A partial discharge detection test link (20) and system detect partial discharge of a power cable at a power cable accessory (6). The partial discharge detection test link (20) is a permanent or temporary substitute for a conventional service link, connects directly across the power cable accessory and includes a conductor member (22) and a partial discharge sensor (24). The conductor member (22) has an electrically conductive element (26) and an insulation (28) surrounding and extending along the electrically conductive element. The electrically conductive element (26) is electrically connected directly between the first and second accessory components. The partial discharge sensor (24) is disposed about the conductor member (22) and has the electrically conductive element as a primary winding and a secondary winding with the insulation positioned between the primary and secondary windings.

Selon l'invention, une liaison d'essai de détection de décharge partielle (20) et un système associé détectent une décharge partielle d'un câble d'énergie au niveau d'un accessoire de câble d'énergie (6). La liaison d'essai de détection de décharge partielle (20) remplace de manière permanente ou temporaire une liaison de service classique. Elle se connecte directement sur l'accessoire de câble d'énergie et comprend un élément conducteur (22) ainsi qu'un capteur de décharge partielle (24). Ledit élément conducteur (22) comprend un élément électro-conducteur (26) et un isolant (28) disposé le long de l'élément électro-conducteur et autour de celui-ci. Cet élément électro-conducteur (26) est électriquement connecté directement entre un premier et un second composant d'accessoire. Le capteur de décharge partielle (24) est disposé autour de l'élément conducteur (22) et utilise l'élément électro-conducteur comme enroulement primaire et comme enroulement secondaire, l'isolant étant placé entre lesdits enroulements principal et secondaire.

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