Study on Influence Factor and Influence Rule of the Discharge of Poor Contact

WANG Chengjiang; LIU Qiang; WANG Xiaojuan; ZHANG Qi; ZHOU Bo

doi:10.13296/j.1001-1609.hva.2019.07.017

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Study on Influence Factor and Influence Rule of the Discharge of Poor Contact

更新时间：2025-04-26

- Study on Influence Factor and Influence Rule of the Discharge of Poor Contact
- High VoltageApparatus Vol. 55, Issue 7, Pages: 114-118(2019)
- 作者机构：
  
  1. 三峡大学电气与新能源学院
  2. 国网荆州供电公司检修分公司
  3. 国网湖北省随州供电公司
  4. 国网湖北省孝感供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.07.017
  CLC： TM75
- Published：2019
- 稿件说明：
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[1]王成江,刘强,王晓娟,张琦,周博.接触不良放电的影响因素及影响规律研究[J].高压电器,2019,55(07):114-118.

WANG Chengjiang, LIU Qiang, WANG Xiaojuan, et al. Study on Influence Factor and Influence Rule of the Discharge of Poor Contact[J]. High VoltageApparatus, 2019, 55(7): 114-118.
[1]王成江,刘强,王晓娟,张琦,周博.接触不良放电的影响因素及影响规律研究[J].高压电器,2019,55(07):114-118. DOI： 10.13296/j.1001-1609.hva.2019.07.017.

WANG Chengjiang, LIU Qiang, WANG Xiaojuan, et al. Study on Influence Factor and Influence Rule of the Discharge of Poor Contact[J]. High VoltageApparatus, 2019, 55(7): 114-118. DOI： 10.13296/j.1001-1609.hva.2019.07.017.

摘要

低压线路接触不良放电与其影响因素之间的关系一直是重点研究问题

通过理论分析以放电量作为反映接触不良放电状态的指标

选取接触间隙和负荷电流两个主要影响因素进行试验研究和回归分析。试验研究表明

接触不良放电量随负荷电流的增大而缓慢增加

随接触间隙增大而快速增加;回归分析发现

放电量与负荷电流的线性拟合以及与3次接触间隙的拟合均具有很高的拟合优度

表明放电量与负荷电流呈线性关系

与接触间隙呈三次函数关系。研究结果为接触不良放电防范提供理论依据。

Abstract

The relationship between poor contact discharge and the influence factor is a key research issue on low volt-age wire. Discharge capacity has been chosen to reflect the discharge condition through theoretical analysis. And twomain influence factors

load current and contact gap

have been selected for experimental study and regression analy-sis. The experimental results show that discharge capacity has a low increasing with the increase of load current

andhas an obvious increasing with the increase of contact gap. The regression analysis shows that the linear fitting betweencontact gap and load current has a high goodness of fit

and the cubic polynomial fitting between contact gap and con-tact gap has a high goodness of fit

which means discharge capacity has linear relation with load current and cubic poly-nomial relation with contact gap. The results can be used as references for discharge prevention on low voltage wire.

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