公开(公告)号：US12153079B2

公开(公告)日：2024-11-26

申请号：US18301713

申请日：2023-04-17

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Kanchanrao Gangadhar Dase ,  James Burton Colwell ,  Matchyaraju Alla ,  Shreenivas Pai

IPC: G01R31/08 ,  G01R19/165

Abstract: Disclosed herein are systems for determining a broken conductor condition in a multiple-phase electric power delivery system. It has been observed that broken conductors pose a safety concern when occurring in the presence of people or vulnerable environmental conditions. Broken conductor conditions disclosed herein may be used to detect and trip the phase with the broken conductor, thus reducing or even eliminating the safety risk. Broken conductors may be determined using detected phase series arcing differences in one phase without commensurate differences in other phases. In various embodiments the phase series arcing attributes may be phase current monitored for decrement and/or phase resistance monitored for increase.

公开(公告)号：US20230333153A1

公开(公告)日：2023-10-19

申请号：US18301713

申请日：2023-04-17

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Kanchanrao Gangadhar Dase ,  James Burton Colwell ,  Matchyaraju Alla ,  Shreenivas Pai

IPC: G01R31/08 ,  G01R19/165

CPC classification number: G01R31/085 ,  G01R19/16571

Abstract: Disclosed herein are systems for determining a broken conductor condition in a multiple-phase electric power delivery system. It has been observed that broken conductors pose a safety concern when occurring in the presence of people or vulnerable environmental conditions. Broken conductor conditions disclosed herein may be used to detect and trip the phase with the broken conductor, thus reducing or even eliminating the safety risk. Broken conductors may be determined using detected phase series arcing differences in one phase without commensurate differences in other phases. In various embodiments the phase series arcing attributes may be phase current monitored for decrement and/or phase resistance monitored for increase.