Abstract
In order to measure the induced voltage of the suspended conductor under the high-voltage transmission line, a portable floating potential measuring device is developed in this paper. This paper proposes a design scheme and develops a high-precision induced voltage sensing and detection module to ensure its sensitivity and accuracy. In order to improve the anti-interference performance, a high-voltage isolation and protection circuit is designed to ensure the anti-interference performance of the system in the strong electromagnetic environment. Finally, the coupling and data acquisition system of multi-physical sensors was developed, and field tests were carried out on site. The test results verify the feasibility of the proposed technical scheme, and the experimental error meets the expected goal.
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