- Patent Title: Single-end traveling wave fault location using line-mounted device
-
Application No.: US16583660Application Date: 2019-09-26
-
Publication No.: US11067617B2Publication Date: 2021-07-20
- Inventor: Edmund O. Schweitzer, III , Raymond W. Rice
- 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 ; G01R19/25 ; G01R31/58
Abstract:
A line-mounted device is used to provide power system signals to a device for detecting a fault and calculating a fault location using a traveling wave launched thereby. Current at the line-mounted device is used to separate incident and reflected traveling waves at a terminal. Times and polarities of traveling waves passing the line-mounted device and the terminal are compared to determine if the fault is located between the terminal and line-mounted device or at a location beyond the terminal or line-mounted device. Voltage of the traveling wave may be calculated using currents from the line-mounted device.
Information query
