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TRANSMISSION LINE PROTECTION USING TRAVELING WAVES IN OPTICAL GROUND WIRE FIBER
TRANSMISSION LINE PROTECTION USING TRAVELING WAVES IN OPTICAL GROUND WIRE FIBER
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机译：光学接地线光纤中使用行波的传输线保护
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摘要
Disclosed herein are systems for detecting a location of a fault on an electric power transmission line using a state-of-polarization traveling wave in an optical ground wire Various embodiments may also detect a traveling wave on a conductor of the transmission system. The arrival times of the state-of-polarization traveling wave and the electrical traveling wave may be compared. Using the difference in times and the known propagation velocities of the traveling waves, a distance to the fault may be calculated. Arrival time of the state-of-polarization traveling wave may be calculated using electrical signals from photodetectors in an optical channel with polarizing filters at different orientations or reference frames.
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