An insulated conductor

Details An insulated conductor An insulated conductor

H - Electricity

02

K

H02K 3/40 (2006.01) H01B 9/02 (2006.01)

Patent

CA 2309284

An insulated conductor for high voltage (10 kV to 800 kV) machine windings comprises one or more strands, an inner, first semiconducting layer surrounding the strands, a first insulating layer surrounding the inner, first semiconducting layer, an outer, second semiconducting layer (18) surrounding the first insulating layer, a continuous conductive means such as a copper strip (11) overlying a part only of the outer, second semiconducting layer (18) and a second insulating layer (15) surrounding the second semiconducting layer and the continuous conductive means (11). In a method of connecting the conductive means (11) to an equalising potential, a portion of the second insulating layer (15) is removed and the conductive means (11) is connected to the equalising potential through the opening (20) left by the removed portion.

L'invention concerne un conducteur électrique pour enroulements de machines haute tension (10 kV à 800 kV). Ce conducteur comprend: un ou plusieurs brins; une première couche semiconductrice intérieure entourant ces brins; une première couche isolante recouvrant cette première couche semiconductrice intérieure; une seconde couche semiconductrice extérieure (18) entourant la première couche isolante; un organe conducteur continu tel qu'un ruban de cuivre (11), déposé sur une partie seulement de la seconde couche semiconductrice extérieure (18); et une seconde couche isolante (15), recouvrant la seconde couche semiconductrice ainsi que ledit organe conducteur continu (11). L'invention concerne également un procédé de raccordement de cet organe conducteur continu (11) à un potentiel d'égalisation, une partie de la seconde couche isolante (15) étant retirée et ledit organe conducteur (11) raccordé au potentiel d'égalisation par l'intermédiaire de l'orifice (20) laissé par la partie retirée.

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