Research on Non-contact Three-phase Voltage Measurement Technology for Low-voltage Distribution Line

LIU Yu; LIU Xizhe

doi:10.19805/j.cnki.jcspe.2026.250061

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Research on Non-contact Three-phase Voltage Measurement Technology for Low-voltage Distribution Line

更新时间：2026-10-10

- Research on Non-contact Three-phase Voltage Measurement Technology for Low-voltage Distribution Line
- Chinese Journal of Power Engineering Vol. 46, Issue 5, Pages: 146-153(2026)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2026.250061
  CLC： TM933.2
- Published：2026
- 稿件说明：
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刘宇, 刘希喆. 低压配网线路非接触式三相电压测量技术研究[J]. 动力工程学报, 2026, 46(5): 146-153.
刘宇, 刘希喆. 低压配网线路非接触式三相电压测量技术研究[J]. 动力工程学报, 2026, 46(5): 146-153. DOI： 10.19805/j.cnki.jcspe.2026.250061.

DOI： 10.19805/j.cnki.jcspe.2026.250061

摘要

针对三相导线间存在电场干扰的问题

搭建了感应电极结构优化仿真模型

提出一种顶层带屏蔽的探头结构。提出适用于双层平行板电极的非接触式电压测量方法

本文研发了一套非接触式三相电压测量装置

并在配电箱中实际测试。结果表明:在1~400 V电压范围内

该装置测量工频电压最大相对误差为0.9%

且适应多工况下三相电压测量。

Abstract

To address issues of electric field interference between three-phase conductors

an optimization simulation model of the induction electrode structure was established

and a probe structure with shielding on top layer was proposed. A non-contact voltage measurement method suitable for double-layer parallel plate electrodes was proposed

a set of non-contact three-phase voltage measurement device was developed and actual tests in the distribution box were conducted. Results show that within the voltage range of 1-400 V

the maximum relative error of the device in measuring the power frequency voltage is 0.9%

and it is suitable for measuring three-phase voltages under various working conditions.

关键词

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references

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