Circuitry for reduction of the magnetic field in the...

Details Circuitry for reduction of the magnetic field in the... Circuitry for reduction of the magnetic field in the...

H - Electricity

02

G

H02G 7/20 (2006.01)

Patent

CA 2192174

A circuitry (1) for reducing the magnetic field from multiphase power lines for high voltage alternating current is disclosed. One phase (R) is split into two branches (R1, R2) forming a closed loop along a line portion (L). The self-reactance of the loop is adjusted for minimal magnetic field generation in the vicinity of the power line by a coupling to a compensation device, in the form of a capacitor (12), in a separate circuit (11), via a transformer (2).

L'invention porte sur un ensemble de circuits (1) destinés à la réduction du champ magnétique émis par les lignes électriques polyphasées servant au transport du courant alternatif à haute tension. On sépare une phase (R) en deux branches (R1, R2) formant un circuit fermé le long d'une partie de ligne (L). On ajuste la réactance propre au circuit afin de minimiser la création de champ magnétique à proximité de la ligne électrique au moyen d'un couplage à un dispositif de compensation se présentant, sous la forme d'un condensateur (12), dans un circuit séparé (11), par l'intermédiaire d'un transformateur (2).

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