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[1]王伟峰,张方智,刘强,等.碳电极直径与负载特性对故障电弧断路器响应时间影响研究*[J].中国安全生产科学技术,2022,18(8):228-234.[doi:10.11731/j.issn.1673-193x.2022.08.034]
　WANG Weifeng,ZHANG Fangzhi,LIU Qiang,et al.Research on influence of carbon electrode diameter and load characteristics on response time of arc fault circuit breaker[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(8):228-234.[doi:10.11731/j.issn.1673-193x.2022.08.034]
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碳电极直径与负载特性对故障电弧断路器响应时间影响研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年8期
页码:
228-234
栏目:
职业安全卫生管理与技术
出版日期:
2022-08-31

文章信息/Info

Title:
Research on influence of carbon electrode diameter and load characteristics on response time of arc fault circuit breaker
文章编号:
1673-193X(2022)-08-0228-07
作者:
王伟峰; 张方智; 刘强; 纪晓涵; 路翠珍; 杨博
（1.西安科技大学 安全科学与工程学院，陕西 西安 710054；
2.陕西省工业过程安全与应急救援工程技术研究中心，陕西 西安 710054；
3.西安科技大学 城市公共安全研究所，陕西 西安 710054）
Author(s):
WANG Weifeng;  ZHANG Fangzhi;  LIU Qiang;  JI Xiaohan;  LU Cuizhen;  YANG Bo
(1.School of Safety Science and Engineering,Xi’an University of Science and Technology,Xi’an Shaanxi 710054,China;
2.Shaanxi Province Industrial Process Safety and Emergency Rescue Engineering Technology Research Center,Xi’an Shaanxi 710054,China;
3.Institute of Urban Public Safety,Xi’an University of Science and Technology,Xi’an Shaanxi 710054,China)
关键词:
负载功率; 功率因数; 故障电弧; 断路器; 保护区间
Keywords:
load power;  power factor;  arc fault;  circuit breaker;  protection interval
分类号:
X934
DOI:
10.11731/j.issn.1673-193x.2022.08.034
文献标志码:
A
摘要:
为解决故障电弧断路器动作响应滞后、效率低等问题，基于电气火灾多发原因与防控实验装置、功率因素可调式负载柜，搭建故障电弧模拟实验台，研究故障电弧断路器响应时间影响因素，利用功率分析仪统计断路器响应时间。研究结果表明：纯电阻电路中，断路器响应时间随碳电极直径增大而缩短；在负载功率P=800,2 000 W条件下，碳电极直径D≥2 mm时,断路器瞬时保护率达100%;负载功率P=3 200 W时,断路器瞬时保护率小于50%；碳电极直径D为1,2 mm时，断路器最佳负载功率保护区间分别为［1 200,1 600］ W,［800,2 400］ W，碳电极直径为2 mm的保护区间范围较宽，安全可靠性更高；感性电路中，断路器响应时间随功率因数减小而延迟，功率因数对断路器动作响应时间的影响随负载功率增加而降低。研究结果可为故障电弧断路器响应时间的设定提供参考。
Abstract:
Aiming at the problems of lagging action response and low efficiency of arc fault circuit breakers,based on the experiment device for the frequent causes and prevention and control of electrical fires and the power factor adjustable load cabinet,an experiment platform of arc fault simulation was established.The influence factors of response time of the arc fault circuit breaker were studied,and the statistics on the response time of circuit breaker was conducted by using the power analyzer.The results showed that in the pure resistance circuit,the response time of the circuit breaker decreased with the increase of carbon electrode diameter.Under the conditions of load power P=800 W and 2 000 W,the instantaneous protection rate of circuit breaker reached 100% when the carbon electrode diameter D≥2 mm,and when the load power P=3 200 W,the instantaneous protection rate of circuit breaker was less than 50%.When the carbon electrode diameter D=1 mm and 2 mm,the best load power protection interval of circuit breaker was ［1 200,1 600］ W,［800,2 400］ W,respectively,and when the carbon electrode diameter was 2 mm,the protection range was wider,the safety and reliability were higher.In the inductive circuit,the response time of circuit breaker was delayed as the power factor decreased,and the influence of power factor on the action response time of the circuit breaker decreased as the load power increased.The research results can provide technical support for the setting of the response time of arc fault circuit breakers.

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备注/Memo

备注/Memo:
收稿日期： 2021-06-05
* 基金项目： 国家自然科学基金项目（52074213）；陕西省重点研发计划项目（2021SF-472）；榆林市科技计划项目（CXY-2020-036）
作者简介： 王伟峰，博士，教授，主要研究方向为安全物联网、城市公共安全。
通信作者： 张方智，硕士研究生，主要研究方向为电气火灾物证鉴定。
更新日期/Last Update: 2022-09-19