碳铜电极在不同极性下的燃弧特性分析

doi:10.16628/j.cnki.2095-8188.2020.02.005

电器与能效管理技术 ›› 2020, Vol. 587 ›› Issue (2): 25-29.doi: 10.16628/j.cnki.2095-8188.2020.02.005

碳铜电极在不同极性下的燃弧特性分析

刘志伟¹, 陈少昆², 李成坤², 朱银龙¹, 高晋峰¹

1.国网山西省电力公司客户服务中心,山西太原 030000;
2.西南交通大学电气工程学院,四川成都 610000

收稿日期:2019-11-15 出版日期:2020-02-15 发布日期:2020-03-28
作者简介:刘志伟(1975—),男,工程师,主要从事电网运行与电力营销。陈少昆(1991—),男,硕士研究生,研究方向为高速铁路弓网系统电接触技术。李成坤(1994—),男,硕士研究生,研究方向为数字建模。

Analysis on Arcing Characteristics of Carbon-Copper Electrodes at Different Polarities

LIU Zhiwei¹, CHEN Shaokun², LI Chengkun², ZHU Yinlong¹, GAO Jinfeng¹

1.State Grid Shanxi Electric Power Co., Customer Service Center, Taiyuan 030000, China;
2.School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610000, China

Received:2019-11-15 Online:2020-02-15 Published:2020-03-28

摘要/Abstract

摘要： 电弧侵蚀对电接触材料寿命及触头可靠性有重要影响。基于电弧烧蚀实验平台进行碳、铜配对下不同极性的电弧侵蚀实验,分析其燃弧特性。分别研究了燃弧过程中的电压、电流波形、燃弧光谱特性、燃弧形貌以及电极烧蚀形貌。研究发现:当碳、铜配对时,主要以侵蚀阳极为主;铜为阳极时,铜电极表面被侵蚀后会形成熔融铜;碳为阳极时,表面材料转移严重,碳材料表面形成烧蚀坑。同时,材料转移会影响弧根运动,进而影响电弧烧蚀,进一步影响材料转移情况。研究成果可为优化基于碳、铜材料配对的电接触系统提供一定参考。

关键词: 电弧, 极性, 材料转移, 弧根运动

Abstract: Arc erosion significantly affects the life of electric contact material as well as its work reliability.Based on the arc ablation experimental platform,the arc ablation experiment of different polarities under carbon-copper pairing was carried out to explore the process of arc erosion.From the voltage and current waveforms during the arcing process,the arcing spectrum,and the electrode topography,the following conclusions were drawn.When carbon and copper were paired,the anode corrosion was dominant.When the copper is the anode,the surface of the copper electrode is eroded to form molten copper.When the carbon is the anode,the surface material is transferred seriously,and the surface of the carbon material forms an ablation pit.And the material transfer will affect the arc root movement,which will affect the arc ablation and change the material transfer.This research has done some basic work for the arc erosion behavior of carbon and copper materials,enriching the theory of electrical contact.

Key words: arcing, polarity, materials transfer, arcing root movement

中图分类号:

TM58

刘志伟, 陈少昆, 李成坤, 朱银龙, 高晋峰. 碳铜电极在不同极性下的燃弧特性分析[J]. 电器与能效管理技术, 2020, 587(2): 25-29.

LIU Zhiwei, CHEN Shaokun, LI Chengkun, ZHU Yinlong, GAO Jinfeng. Analysis on Arcing Characteristics of Carbon-Copper Electrodes at Different Polarities[J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 587(2): 25-29.

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碳铜电极在不同极性下的燃弧特性分析

Analysis on Arcing Characteristics of Carbon-Copper Electrodes at Different Polarities

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