Device for monitoring the leakage current of a surge arrester

Details Device for monitoring the leakage current of a surge arrester Device for monitoring the leakage current of a surge arrester

H - Electricity

01

T

H01T 15/00 (2006.01) H01C 7/12 (2006.01)

Patent

CA 2539964

The invention relates to a device for supervising a leakage current of a lighting arrester (1) and to an measuring element (7) for detecting a leakage current in a leakage current circuit (3). A filter assembly (8) filters said leakage current in order to extract a third harmonic oscillation which is evaluated by an evaluation circuit (6) with respect to the quantity thereof. Said evaluation circuit (12, 24) delivers at least one warning signal to a display device (13, 14, 15, 25). In a preferred embodiment, three display devices (13, 14, 15) operating as a signalling light are provided. A power supply for the used circuits (5, 6) is obtainable by means of a transformer (16) which extracts a necessary auxiliary zero-potential energy contained in the leakage current and with the aid of a main power supply unit (19) connected to said transformer (16).

L'invention concerne un dispositif pour surveiller le courant de fuite d'un parafoudre (1), un élément de mesure (7) détectant le courant de fuite présent dans le circuit de courant de fuite (3). Un ensemble filtre (8) filtre le courant de fuite pour extraite la troisième composante harmonique, et un circuit d'évaluation (6) évalue cette troisième composante harmonique en fonction de sa grandeur. Le circuit d'évaluation (12, 24) fournit au moins un signal d'alerte à un dispositif d'affichage (13, 14, 15, 25). De préférence, trois éléments d'affichage (13, 14, 15) fonctionnant à la manière d'un feu de signalisation sont prévus. L'alimentation en courant pour les circuits utilisés (5, 6) est obtenue au moyen d'un transformateur (16) qui extrait l'énergie auxiliaire nécessaire, sans potentiel, contenue dans le courant de fuite, et à l'aide d'un bloc d'alimentation (19) qui est relié audit transformateur (16).

Affiliated with

Also associated with

Rating

Device for monitoring the leakage current of a surge arrester does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for monitoring the leakage current of a surge arrester, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for monitoring the leakage current of a surge arrester will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1869603