Section insulator for a rigid catenary

B - Operations – Transporting – 60 – M

Patent

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Details

B60M 1/18 (2006.01)

Patent

CA 2625194

The invention relates to a dual-function section insulator for a rigid catenary, which can perform the functions of both a standard section insulator and a neutral section insulator. The inventive insulator is configured to maintain mechanical continuity such as to enable the smooth passage of the pantograph, thereby minimising the need for regulation and maintenance. The insulator essentially comprises: a pair of conductive rail segments (2) having a single central shoe (1) disposed therebetween obliquely to the direction of the catenary, a pair of arc-extinguishing wires (9) in which the electric field is broken, and a series of bars (8) which are disposed on the central shoe (1) and which, next to a jumper cable that extends from same to the conductive rail segment (2), can be used to bridge the conducting wire of the insulator (3) when the electric power supply to the pantograph is to be maintained.

L'invention concerne un isolateur de section pour une caténaire rigide qui possède une double fonctionnalité : il peut remplir les fonctions d'isolateur de section classique et d'isolateur de section neutre. L'isolateur selon l'invention est configuré de façon qu'il maintienne une continuité mécanique permettant le passage en douceur du pantographe, ce qui minimise le besoin de régulation et de maintien. L'isolateur comprend fondamentalement une paire de segments de voie conductrice (2) entre lesquels un patin central unique (1) est disposé obliquement par rapport à la direction de la caténaire, une paire de fils pare-étincelles (9) dans lesquels se produit la rupture du champ électrique et une série de bras (8) disposés sur le patin central (1), qui, conjointement avec un câble de pontage s'étendant des bras au segment de voie conductrice (2), permettent de mettre en dérivation le fil conducteur de l'isolateur (3) quand on souhaite maintenir l'alimentation électrique du pantographe.

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