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1. WO1991001039 - SUPPORT INSULATOR

Publication Number WO/1991/001039
Publication Date 24.01.1991
International Application No. PCT/SE1990/000457
International Filing Date 27.06.1990
Chapter 2 Demand Filed 18.12.1990
IPC
H01B 17/14 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
17Insulators or insulating bodies characterised by their form
14Supporting insulators
H01B 17/52 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
17Insulators or insulating bodies characterised by their form
52having cleaning devices
CPC
H01B 17/14
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
17Insulators or insulating bodies characterised by their form
14Supporting insulators
H01B 17/525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
17Insulators or insulating bodies characterised by their form
52having cleaning devices
525Self-cleaning, e.g. by shape or disposition of screens
Applicants
  • ASEA BROWN BOVERI AB [SE/SE]; S-721 83 Västerås, SE (AllExceptUS)
  • HARTINGS, Ralf [SE/SE]; SE (UsOnly)
Inventors
  • HARTINGS, Ralf; SE
Agents
  • ÖHMAN, Bengt; ABB Corporate Research Patent Department S-721 78 Västerå, SE
Priority Data
8902481-410.07.1989SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SUPPORT INSULATOR
(FR) ISOLATEUR DE SUPPORT
Abstract
(EN)
The invention relates to a novel type of support insulator which, because of its better resistance to impurities and precipitation, may be made considerably shorter than a conventional support insulator for the same voltage and which is able to withstand a considerably higher voltage at the same overall height, respectively. The support insulator (1) is intended to separate a first and a second electrode at different electric potential and has been given an outer pear-like shape. The insulator comprises a continuous supporting rod (8) of insulating material. The first electrode, which lies at high-voltage potential, is divided into a first (2) and a second (6) electrically conducting part, arranged around the rod (8) spaced somewhat from each other and electrically interconnected by means of a conductor (7). The second part (6) is thereby placed nearest the second electrode. These parts (2, 6) and the conductor (7) are enclosed by insulating material so that a first solid of revolution is formed around the first part and a cup-shaped second solid of revolution (4) is formed around the second part. The second solid of revolution (4) has been given a considerably larger diameter than the first solid of revolution (3). Further, it is suitable for the space (10) around the rod (8) between the cup-shaped solid of revolution and said second electrode to be enclosed by a shell of insulating material and for the space (10) to be filled with an insulating agent, for example SF6.
(FR)
L'invention concerne un nouveau type d'isolateur de support, lequel, du fait de sa meilleure résistance aux impuretés et aux précipitations, peut être fabriqué considérablement plus court qu'un isolateur de support classique pour la même tension, et est capable de supporter une tension considérablement supérieure à la même hauteur globale, respectivement. Ledit isolateur de support (1) est destiné à séparer des première et seconde électrodes à des potentiels électriques différents, et présente une forme extérieure analogue à celle d'une poire. Ledit isolateur comprend une barre de support continue (8) en matériau isolant. Ladite première électrode, laquelle reste à un potentiel de haute tension, est divisée en une première (2) et en une seconde (6) parties électro-conductrices, agencées autour de la barre (8) légèrement espacées l'une de l'autre et interconnectées électriquement au moyen d'un conducteur (7). Ladite seconde partie (6) se trouve ainsi placée la plus proche de la seconde électrode. Ces parties (2, 6) ainsi que le conducteur (7) sont enveloppées par un matériau isolant, de sorte qu'un premier solide de révolution est formé autour de la première partie, et de sorte qu'un second solide de révolution (4) de forme évasée est formé autour de la seconde partie. On a donné audit second solide de révolution (4) un diamètre considérablement supérieur à celui dudit premier solide de révolution (3). En outre, il est adapté à l'espace (10) se trouvant autour de ladite barre (8), entre le solide de révolution de forme évasée et ladite seconde électrode, pour être renfermé par une enveloppe de matériau isolant, et à l'espace (10) à remplir d'un agent isolant, par exemple SF6.
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