Design on non-contact electroscope with multiple voltage levels

被引：0

作者：

Wang N. ^{[1
]}

Song J.-M. ^{[1
]}

Yan Z.-H. ^{[2
]}

Kang Y.-X. ^{[1
]}

Liu W. ^{[1
]}

Zhang L. ^{[1
]}

机构：

[1] School of Electrical Engineering, Dalian University of Technology, Dalian

[2] State Grid Liaoning Electric Power Research Institute, Shenyang

来源：

Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2023年 / 27卷 / 02期

关键词：

alarm threshold; APP; electric field simulation; electroscope; multiple voltage levels; non-contact;

D O I：

10.15938/j.emc.2023.02.010

中图分类号：

学科分类号：

摘要：

In order to solve the problems of the traditional electroscope, such as single voltage level, high insulation requirement and blind zone of power inspection, a multi-voltage level non-contact electroscope is designed based on the charge induction principle of the flat capacitor sensor. The measuring principle of the sensor was analyzed and the structure was improved. Through modeling and simulation of transmission lines with different voltage levels, different circuit numbers and different arrangement modes, the induced voltage of the sensor was obtained. And then through analyzing the anti-interference performance of the sensor under the condition of line erection on the same pole and line lack of phase, the alarm threshold range of each voltage level was determined. The software and hardware functions of the electroscope and the design of the APP electrical inspection monitoring platform were completed, which can realize circuit self-check, voltage grade selection, data acquisition and processing, sound and light alarm, Blue-tooth wireless transmission and other functions. At last, the linearity test and the performance experiment under high voltage conditions were carried out. The test results show that the linear correlation coefficient between the induced voltage and the electric field intensity of the sensor is greater than 0. 99, and the linearity is good. The accuracy rate is 100%, and the results are stable and reliable. © 2023 Editorial Department of Electric Machines and Control. All rights reserved.

引用

页码：89 / 97

页数：8

共 22 条

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