电器与能效管理技术 ›› 2023, Vol. 0 ›› Issue (4): 15-20.doi: 10.16628/j.cnki.2095-8188.2023.04.003

• 电弧研究与分析 • 上一篇    下一篇

不同灭弧介质下直流燃弧特性实验研究

郭红斌1, 张涛2, 汤建方2, 马驰2, 李忠翔3   

  1. 1.中广核风电有限公司, 北京 100070
    2.苏州热工研究院有限公司, 江苏 苏州 215004
    3.西安交通大学 电气工程学院, 陕西 西安 710049
  • 收稿日期:2023-02-01 出版日期:2023-04-30 发布日期:2023-05-09
  • 作者简介:郭红斌(1981—),男,高级工程师,主要从事新能源发电数字化智慧运维技术研究。|张 涛(1987—),男,高级工程师,主要从事电站电气仪控设备检测与评估技术研究。|汤建方(1969—),男,高级工程师,主要从事新能源发电电气工程及自动化研究。

Experimental Study on DC Arcing Characteristics Under Different Arc Extinguishing Medium

GUO Hongbin1, ZHANG Tao2, TANG Jianfang2, MA Chi2, LI Zhongxiang3   

  1. 1. CGN Wind Energy Limited,Beijing 100070,China
    2. Suzhou Nuclear Power Reseach Institute Co., Ltd.,Suzhou 215004,China
    3. School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China
  • Received:2023-02-01 Online:2023-04-30 Published:2023-05-09

摘要:

为探究H2、N2和不同混合比例的H2 - N2混合介质的燃弧特性,搭建了可视化电弧实验平台。设计了“圆台-平板”碳触头结构稳定电弧,利用高速摄影仪拍摄电弧形态及电压、电流探头采集电弧电气量,测试不同介质的电弧特性,分析气体电弧的电弧电压组成及近极压降的提取,比较多组混合气体下电场强度。实验表明H2 -N2混合气体的弧压随着H2含量增加而上升,可为直流接触器气体介质的选择提供参考。

关键词: 接触器, 燃弧特性, 灭弧介质, 电弧形态, 电弧电压

Abstract:

In order to explore the arcing characteristics of H2,N2 and H2-N2 mixed media with different mixing ratios,a visual arc experiment platform was built.The "round-tablet-flat" carbon contact structure was designed to stabilize the arc.A high-speed camera was used to capture the arc shape.The voltage and current probe was used to collect the arc electricity volume and test the arc characteristics of different media.The arc voltage composition of the gas arc and the extraction of the near extreme voltage drop were analyzed.The electric field strength under multiple mixed gases was compared.It indicates that the arc voltage increases with the ratio of H2 in the H2-N2 mixed medium,which can provide a reference for the selection of the gas medium of the DC contactor.

Key words: contactor, arcing characteristic, arc extinguishing medium, arc shape, arc voltage

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