Sensitive ground fault detection system for use in...

H - Electricity – 02 – H

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H02H 3/40 (2006.01) H02H 3/08 (2006.01) H02H 9/08 (2006.01)

Patent

CA 2409145

A system for detecting ground faults in a compensated electric power distribution network includes the determination of zero sequence voltage (V0) and zero sequence current (I0) on a power line and calculating the zero sequence conductance (G0) therefrom. The oepration of the conductance calculation circuit occurs only under selected power line conditions involving minimum values of zero sequence voltage, zero sequence current and positive sequence voltage, to ensure the accuracy of a fault direction determination. The conductance values are processed on an adaptive basis in which the difference between the most recent conductance value and a conductance value from a selected previous point in time is determined and then compared against threshold values to make forward and reverse fault declarations.

L'invention porte sur un détecteur de défaut de terre pour réseau électrique de distribution compensé consistant à déterminer la tension de séquence 0 (V¿0?) et l'intensité de séquence 0 (I¿0?) de la ligne puis, à partir d'elles, la conductance de séquence 0 (G¿0?). Le circuit de calcul de la conductance n'intervient que dans des états sélectionnés de la ligne soit des valeurs minimales de la tension de séquence 0, de l'intensité de séquence 0, et de la tension de séquence positive, de manière à assurer la précision de détermination de la détection du défaut de terre. Les valeurs de la conductance sont traitées d'une manière adaptative selon laquelle la différence entre la valeur actuelle de la conductance et une valeur antérieure de la conductance est comparée à un seuil pour pouvoir constater un défaut postérieur ou antérieur.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Sensitive ground fault detection system for use in... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sensitive ground fault detection system for use in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensitive ground fault detection system for use in... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2021961

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.