Overhead communicating device

H - Electricity – 02 – J

Patent

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Details

H02J 13/00 (2006.01) G01R 1/28 (2006.01) H02G 7/00 (2006.01) H02G 15/00 (2006.01) H02H 3/00 (2006.01)

Patent

CA 2739096

A power line monitoring device is mounted to a power line. The device includes circuitry for monitoring the power line and communicating information regarding the power line. A ground reference point of the circuitry is electrically coupled to the power line. Therefore, the monitoring device, including its circuitry, has substantially the same voltage potential as the power line. Accordingly, there is a substantially equalized or uniform electric field around the device The substantially equal voltage potential and electric field allow communications with the monitoring device to have reduced noise and interference, as compared to other devices that have different voltage potentials than their corresponding power lines. A pad of semi-conductive material may be disposed between the power line and the electrical conductors to slow a rate of change of the voltage potential of the device circuitry when mounting the device to the power line, minimizing risk of corona discharge.

Dispositif de surveillance de ligne de transport dénergie monté sur une ligne électrique, le dispositif comprenant un montage de circuits destiné à surveiller la ligne de transport dénergie et à communiquer des informations la concernant. Un point de référence à la masse du montage de circuits est relié électriquement à la ligne de transport dénergie. Le dispositif de surveillance, y compris son montage de circuits, est donc sensiblement au même potentiel que la ligne de transport dénergie, si bien quun champ électrique sensiblement égalisé ou uniforme enveloppe le dispositif. Le potentiel et le champ électrique sensiblement égaux permettent de réduire le bruit et les interférences affectant les communications avec le dispositif de surveillance par rapport à dautres dispositifs aux potentiels différents de ceux de leurs lignes de transport dénergie associées. Un coussinet de matériau semiconducteur peut être placé entre la ligne de transport dénergie et les conducteurs électriques dans le but de ralentir le taux de variation du potentiel du montage de circuits du dispositif lorsque celui-ci est monté sur la ligne de transport dénergie et de minimiser ainsi le risque de décharge par effet couronne.

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