Invention Grant
- Patent Title: Electric power fault protection device using single-ended traveling wave fault location estimation
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Application No.: US16358407Application Date: 2019-03-19
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Publication No.: US10585133B2Publication Date: 2020-03-10
- Inventor: Armando Guzman-Casillas , Yajian Tong , Mangapathirao Venkata Mynam , Bogdan Z. Kasztenny
- Applicant: Schweitzer Engineering Laboratories, Inc.
- Applicant Address: US WA Pullman
- Assignee: Schweitzer Engineering Laboratories, Inc.
- Current Assignee: Schweitzer Engineering Laboratories, Inc.
- Current Assignee Address: US WA Pullman
- Agent Richard M. Edge
- Main IPC: G01R31/08
- IPC: G01R31/08 ; G01R31/11

Abstract:
A single-ended traveling wave fault location estimation is calculated using this disclosure, and a confidence level is determined based on available independent fault location estimations. Hypothesis are calculated based on traveling wave times and values, wherein the values indicate a polarity that is the same as the first received traveling wave. Hypothesis are then compared against results of other fault location estimations, and confidence levels assigned accordingly. The fault location is then calculated and displayed based on the hypothesis and confidence levels.
Public/Granted literature
- US20190212382A1 ELECTRIC POWER FAULT PROTECTION DEVICE USING SINGLE-ENDED TRAVELING WAVE FAULT LOCATION ESTIMATION Public/Granted day:2019-07-11
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