H - Electricity – 01 – F
Patent
H - Electricity
01
F
H01F 27/08 (2006.01) H01F 27/32 (2006.01)
Patent
CA 2276620
A power transformer (1) comprising a transformer core wound with a high- voltage cable, which is composed of a core having a plurality of strand parts (112), an inner semiconducting layer (113) surrounding the core, an insulating layer (114) surrounding the inner semiconducting layer (113), and an outer semiconducting layer (115) surrounding the insulating layer (114) wherein the winding is provided with spacers (4, 12) arranged to separate each cable turn in radial direction in the winding in order to create axial cylindrical cooling ducts (3).
L'invention concerne un transformateur d'alimentation (1) comprenant un noyau sur lequel est enroulé un câble haute tension. Ce câble comprend un noyau doté d'une pluralité de parties brins (112), une couche semi-conductrice interne (113) enveloppant le noyau, une couche isolante (114) revêtant la couche semi-conductrice interne (113), et une couche semi-conductrice externe (115) recouvrant la couche isolante (114). L'enroulement est doté d'écarteurs (4, 12) destinés à séparer chaque tour de câble dans le sens radial de l'enroulement pour ainsi créer des canaux de refroidissement cylindriques et axiaux (3).
Kylander Gunnar
Leijon Mats
Asea Brown Boveri Ab
Gowling Lafleur Henderson Llp
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