Schweitzer Engineering Laboratories, Inc.

Sajal Harmukh

Kanchanrao Gangadhar Dase

Arun Shrestha

Nishchal Sharma

Normann Fischer

Daqing Hou

Manodev J Rajasekaran

Mauricio G Silveira

Bharat Nalla

Ozan Akyildiz

Jaya R A K Yellajosula

Vinodev E Rajasekaran

Derek Lautenschlager

Jordan Bell

Arunabha Chatterjee

Karthi Sellakkannu

Systems and methods described herein monitor real-time digital data for degradation. A merging unit may measure electrical parameters in an electric power system using a sensor component and may generate a stream of digital data representing measured electrical parameters. The merging unit may transmit the stream of digital data representing measured electrical parameters and receive a plurality of data frames using an interface. A digital data degradation detection subsystem may analyze a plurality of digital metrics associated with the plurality of data frames and make a determination of whether a subset of the plurality of data frames satisfies the plurality of digital metrics, and the subset of the plurality of data frames fails at least one of the plurality of digital metrics. The merging unit may implement a response when the subset of the plurality of data frames fails at least one of the plurality of digital metrics.

Real-time digital data degradation detection

Systems and methods are disclosed to monitor real-time digital data for degradation. In one embodiment, an intelligent electronic device ('IED') in an electric power system may include an interface to receive a stream of digital data, the stream of digital data comprising a plurality of data frames. A protective action subsystem may monitor the sampled digital data and implement a protective action based on the stream of sampled digital data. A digital data degradation detection subsystem may analyze a plurality of digital metrics associated with the plurality of data frames and make a determination regarding degradation of a communication channel based on whether the plurality of digital metrics fails at least one threshold. In response to the determination, the digital data degradation detection subsystem may implement a response to the determination that the plurality of digital metrics fails at least one threshold.

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. Further, a distance to the opening may be determined.

Broken conductor detection in a multiple-phase electric power delivery system

The present disclosure relates to detecting a broken conductor in a power transmission line. In an embodiment, a processor receives a signal indicating current on the transmission line. The processor determines that a broken conductor is present on the transmission line based at least in part on a magnitude of the current being less than a line charging current of the transmission line and a phase angle of the current leading a respective phase voltage of the transmission line. The processor effects a control operation based on the determined broken conductor.

Detection and location of broken conductors for transmission lines

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Pullman, WA, United States of America

Sajal Harmukh