H - Electricity – 01 – B
Patent
H - Electricity
01
B
H01B 17/26 (2006.01)
Patent
CA 2382730
A high-voltage bushing for insulating a conductor going through a metallic wall is described herein. To allow a conventional current transformer to be used to monitor the current flowing through the conductor, an external shield is embedded in the tubular body of the bushing and electrically connected to the metallic wall. An internal shield, also embedded in the tubular body of the bushing and electrically connected to the conductor, is provided to prevent the electric field to generate high levels of partial discharge in the air surrounding the conductor in the tubular body.
L'invention concerne une traversée haute tension, destinée à isoler un conducteur traversant une paroi métallique. Afin de permettre l'utilisation d'un transformateur classique de courant, pour surveiller le courant circulant à travers le conducteur, on a encastré un écran extérieur dans le corps tubulaire de la traversée et on l'a connecté électriquement à la paroi métallique. Un écran intérieur, également encastré dans le corps tubulaire de la traversée et connecté électriquement au conducteur, sert à empêcher le champ électrique de créer des niveaux élevés de décharge partielle dans l'air entourant le conducteur, dans le corps tubulaire.
Guillemette Robert
Legrand Bertrand
Electro Composites (2008) Ulc
Electro Composites Inc.
Goudreau Gage Dubuc
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