High voltage surge arrester and method of operating the same

Details High voltage surge arrester and method of operating the same High voltage surge arrester and method of operating the same

H - Electricity

01

C

H01C 7/12 (2006.01)

Patent

CA 2711380

An arrester includes at least one elongate outer first housing (11) made of an electrically insulating material, a pair of electrical terminals (12, 13) at oppo-site ends of the first housing, an array of electrical components (14) arranged in the first housing that form a series path between the terminals, and a voltage grading ar-rangement (15) for providing a substantially uniform voltage gradient along the ar-rester, wherein the voltage grading arrangement comprises (i) an elongated outer sec-ond housing (17), and (ii) capacitor circuitry (20) arranged in the outer second housing, and wherein the outer second housing is arranged external to the outer first housing.

L'invention porte sur un limiteur de surtension qui comprend au moins un premier boîtier externe allongé (11) fait d'un matériau électriquement isolant, une paire de bornes électriques (12, 13) aux extrémités opposées du premier boîtier, un groupement de composants électriques (14) agencés dans le premier boîtier qui forment un trajet série entre les bornes, et un agencement de gradation de tension (15) pour former un gradient de tension sensiblement uniforme le long du limiteur de surtension, l'agencement de gradation de tension comprenant (i) un second boîtier externe allongé (17), et (ii) des circuits à condensateur (20) agencés dans le second boîtier externe, le second boîtier externe étant agencé à l'extérieur du premier boîtier externe.

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