US 11,747,387 B2
Open circuit fault management on overhead lines
Shibu Jolly, Goa (IN); Mayur Mahambrey, Goa (IN); Vengatasubramanian Muthuraman, Goa (IN); and Vivek Sharma, Goa (IN)
Assigned to SIEMENS AKTIENGESELLSCHAFT
Filed by Siemens Aktiengesellschaft, Munich (DE)
Filed on Feb. 22, 2022, as Appl. No. 17/677,110.
Claims priority of application No. 202141007740 (IN), filed on Feb. 24, 2021.
Prior Publication US 2022/0268825 A1, Aug. 25, 2022
Int. Cl. G01R 31/08 (2020.01)
CPC G01R 31/085 (2013.01) [G01R 31/088 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer implemented method for managing an open circuit fault on an overhead line in a power network, comprising:
obtaining overhead line data from a sensor mounted on the overhead line;
determining fault detection parameters associated with one or more nodes of the overhead line on occurrence of a predefined node condition at the one or more nodes, wherein the fault detection parameters associated with a respective node comprise
a total number of predecessors of the respective node, wherein a total number of predecessors of the respective node refers to a number of nodes existing along a feeder section of an overhead line between the respective node and a substation,
a total number of offline predecessors of the respective node, wherein a total number of offline predecessors of the respective node refers to a number of predecessor nodes that have not communicated,
a perimeter of the respective node, wherein a perimeter of the respective node refers to a nearest online predecessor of the respective node, and
a computation precision index of the respective node, wherein computation precision index of the respective node refers to a factor indicating an accuracy or a confidence weightage of the respective node having an open circuit in its proximity,
further wherein the predefined node condition at the respective node comprises a low voltage and a negative rate of change of a line current at the respective node;
generating an output based on the fault detection parameters, wherein the output indicates potential presence of an open circuit at the one or more nodes; and
rendering the output on a graphical user interface of a fault detection and management system managing the open circuit fault on the overhead line in the power network for enabling utility maintenance teams to localize a faulty section of the power network.