[1]李祥超,张静,陈良英,等.组合型电涌保护器设计方法的研究[J].电瓷避雷器,2017,140(04):16-22.[doi:10.16188/j.isa.1003-8337.2017.04.003]
 LI Xiangchao,ZHANG Jing,CHEN Liangying,et al.Research on Design Method of Combined Surge Protection Device[J].,2017,140(04):16-22.[doi:10.16188/j.isa.1003-8337.2017.04.003]
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组合型电涌保护器设计方法的研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
140卷
期数:
2017年04期
页码:
16-22
栏目:
避雷器
出版日期:
2017-09-10

文章信息/Info

Title:
Research on Design Method of Combined Surge Protection Device
作者:
李祥超张静陈良英薛奇
南京信息工程大学 中国气象局气溶胶-云-降水重点开放实验室,南京 210044
Author(s):
LI Xiangchao ZHANG Jing CHEN LiangyingXUE Qi
Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration,Nanjing University of Information Science and Technology,Nanjing 210044,China
关键词:
组合型SPDZnO压敏电阻块体模型气体放电管通流残压
Keywords:
the combined SPD ZnO varistor the block model GDT current voltage
DOI:
10.16188/j.isa.1003-8337.2017.04.003
文献标志码:
A
摘要:
针对组合型电涌保护器(SPD)利用氧化锌(ZnO)压敏电阻与气体放电管组合的设计方法的问题,理论分析了ZnO压敏电阻的块体模型和气体放电管工作原理;采用8/20μs模拟雷电流,对不同组合方式的ZnO压敏电阻与气体放电管进行了冲击测试,得出组合结构SPD主要性能体现在并联或并联的气体放电管数量的试验结果,即压敏电阻并联的气体放电管数越少,组合型SPD的残压越低;串联气体放电管数越多,压敏电阻的通流越小,可有效延长了压敏电阻的使用寿命;当气体放电管两端的电压达到直流放电电压时,气体放电管迅速导通,使整个组合器件两端电压迅速减小;随冲击电压的升高,残压增大,通流呈线性增加,平均斜率为3.21。在组合型SPD的设计中具有一定的参考价值。
Abstract:
The design of the combined surge protection device (SPD) utilizes ZnO varistors and gas discharge tubes(GDT) together, based on the theoretical analysis to the block model of the ZnO varistor and the working principle of the GDT. Through the 8/20 μs waveform simulating the lightning wave, conclude that the combined SPD mainly reflects the characters of the multipled GDT or the quantity, which means that the voltages goes down with the decrease of the quantity of multipled GDT, the currents of the ZnO varistor being lower with the increase of the tandem GDT. When reaching the DC discharger voltage, the GDT conducts promptly and the voltage decrease rapidly. Both the voltages of the SPD and the currents are increased with the impulse currents, the linear increased SPD current,the average slope being 3.21. The voltages go down with the reductive GDTs in parallel. The add to the cascade GDT follows the diminution of the current of the ZnO varistor whose service life is prolonged, which have reference to the design of the combined SPD.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-04-06 作者简介:李祥超(1969—),男,副教授,主要从事电涌保护器研发与测试。 基金项目:973国家重点基础研究计划(编号:2014CB441405)。
更新日期/Last Update: 2017-09-10