Non-contact electricity verification device based on vertical field intensity difference distribution curve matching

Abstract

A non-contact electricity verification device based on vertical field intensity difference distribution curve matching comprises a signal collecting unit, a data analysis unit and a signal transmission unit used for signal transmission between the signal collection unit and the data analysis unit. The signal collection unit comprises a sensing module, a filter module, a collection module and a collection control module, wherein the sensing module is used for measuring voltage signals of measured points on a measured path, and the voltage signals are filtered by the filter module in a low-pass mode, then transmitted to the collection module for analog-digital conversion and transmitted out through the collection control module. The data analysis unit comprises a display module, a man-machine interaction module, a data storage module and a control module. The data analysis unit stores a standard map and generates a measurement curve by calculation according to actual measurement data, matching recognition is carried out on the measurement curve and the standard map, and the electrification situation is judged. Whether an object to be tested is powered on or not can be judged by detecting the electric field intensity of the measured path, the operation process is simplified, and detection accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of electrical inspection of live equipment in electric power systems, and in particular relates to a non-contact electrical inspection device that performs graphic matching based on a vertical electric field intensity difference distribution curve to realize electrification experience. Background technique [0002] An electroscope is an instrument used to detect whether an object is charged. According to national regulations, high-voltage electroscopes must be tested on live lines or equipment with corresponding conditions before use. After confirming that the high-voltage electroscopes are working well, they must be tested for high-voltage lines. Classified according to the electroscope mode, electroscopes can be divided into contact electroscopes and non-contact electroscopes. Among them, the non-contact electroscope has gradually become a research hotspot because it can operate without direct contact wit...

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Problems solved by technology

[0005] Aiming at the problem that the reference value and alarm threshold in the non-contact electroscope in the prior art are easily disturbed by the outside world, the accuracy is not high, and the operation process is relatively complicated due to the need to perform multiple measurements on the same line, the purpose of the present invention The purpose is to provide a non-contact electrical inspection device for pattern matching based on the distribution curve of the vertical electric field intensity difference

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