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A New method for Windage yaw Detection of Composite Insulator Based on Video Analysis

In recent years, windage yaw flashover accidents on transmission lines occurred frequently, which posed a serious threat to safety and reliability of a power grid. Existing methods for windage yaw detection of transmission lines generally use sensors to collect swing angle of insulator strings, but the reliability is not high enough. This paper proposes a windage yaw detection technology of composite insulator based on video analysis. Tracker software was used to analyze the video of windage yaw of composite insulators. And the amplitude, frequency and swing angle of windage yaw of composite insulators can be obtained through analysis. The results showed that the proposed method can detect the windage yaw of composite insulators in millimeter scale, which has practical significance on power grid disaster prevention and mitigation caused by windage yaw.