Characterization Analysis of Anti-impact Weak Current Sensor

SU Cheng-zhi; XU Yu-dong; WANG En-guo; CAO Guo-hua

doi:10.13296/j.1001-1609.hva.2013.02.004

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Characterization Analysis of Anti-impact Weak Current Sensor

更新时间：2025-04-26

- Characterization Analysis of Anti-impact Weak Current Sensor
- High VoltageApparatus Vol. 49, Issue 2, Pages: 49-54(2013)
- 作者机构：
  
  长春理工大学机电工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2013.02.004
  CLC： TM862;TP212
- Published：2013
- 稿件说明：
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[1]苏成志,徐玉东,王恩国,曹国华.抗冲击弱电流传感器特性分析[J].高压电器,2013,49(02):49-54.

SU Cheng-zhi, XU Yu-dong, WANG En-guo, et al. Characterization Analysis of Anti-impact Weak Current Sensor[J]. High voltageapparatus, 2013, 49(2): 49-54.
[1]苏成志,徐玉东,王恩国,曹国华.抗冲击弱电流传感器特性分析[J].高压电器,2013,49(02):49-54. DOI： 10.13296/j.1001-1609.hva.2013.02.004.

SU Cheng-zhi, XU Yu-dong, WANG En-guo, et al. Characterization Analysis of Anti-impact Weak Current Sensor[J]. High voltageapparatus, 2013, 49(2): 49-54. DOI： 10.13296/j.1001-1609.hva.2013.02.004.

摘要

在线监测电涌保护器漏电流

判断其失效程度

减少因雷电和电力需求增加引起的电涌造成电气设备损失。提出了一种基于互感型电流传感器的电涌保护器失效程度在线监测的方法

建立了雷电电流和电流传感器数学模型

分析了线圈匝数、负载电阻和杂散电容对电流传感器测量精度和抗冲击性影响

采用雷击和被测电流叠加后的复合信号作为激励

仿真研究了参数优化后电流传感器的时域响应特性。实验证明

在0.2～9 mA的电流测量范围内

笔者设计的互感型式电流传感器可抵抗50 kA大电流冲击

电流测量误差小于0.11 mA

满足漏电流在线监测要求。

Abstract

The electrical equipment loss caused by the lightning and power’s increasing demand is reduced by monitoring the extent of the surge protector failure using measuring its leakage current on-line.Proposed a method of monitoring the surge protector’s failure degree online based on mutual inductance current sensor

established its mathematical model

analyzed the influence of coil turns

load resistance and stray capacitance on the effect of current sensor’s measuring accuracy and impact resistance use lighting and tested current compound signal incentive after superposition.Experiments show: where the measured current range is 0.2

the mutual inductance current sensor designed can resist the impact of 50 kA high current

the current measurement error can be

less than 0.11 mA

and meet requirement of the leakage current on-line monitoring.

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