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Research on Test Conditions of Electric Strength of Arc-extinguishing Nozzle Materials for High Voltage Switch Circuit Breaker
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Qiqi ZHU, Rui CHEN, Liucheng HAO, Duanpeng YUAN, Kai LI, Yaxiang WANG, Xiaochuang SI, Pei ZHANG
Insulating Materials | 2022, 55(7) : 99 - 103
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Insulating Materials | 2022, 55(7): 99-103
• Test and Analysis •
Research on Test Conditions of Electric Strength of Arc-extinguishing Nozzle Materials for High Voltage Switch Circuit Breaker
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Qiqi ZHU, Rui CHEN, Liucheng HAO, Duanpeng YUAN, Kai LI, Yaxiang WANG, Xiaochuang SI, Pei ZHANG
Affiliations
  • Pinggao Group Co., Ltd., Pingdingshan 467001, China
Published: 2022-07-20 doi: 10.16790/j.cnki.1009-9239.im.2022.07.015
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In order to clarify the electric strength test conditions of arc-extinguishing nozzle materials, an electric strength test model of nozzle materials was established by using COMSOL finite element analysis software, and the electrostatic field distribution of the test model were calculated under different electrode shapes, environmental media, and sample thicknesses. The results show that the spherical electrodes and equal-diameter electrodes are better than non-equal-diameter electrodes, the best environmental media is transformer oil, and the sample thickness of 1 mm is better. By comparing the electric strength test results of the nozzle material samples with 1 mm of thickness in transformer oil measured with spherical electrodes and equal-diameter electrodes, it is found that the electric strength of the samples measured with spherical electrodes is higher, and the dispersion is smaller, the standard deviation is only 1.172 kV/mm. The research results provide a theoretical basis for the selection of electric strength test conditions for nozzle materials.

arc-extinguishing nozzle  /  electric strength  /  electrode  /  environment medium  /  sample thickness
Qiqi ZHU, Rui CHEN, Liucheng HAO, Duanpeng YUAN, Kai LI, Yaxiang WANG, Xiaochuang SI, Pei ZHANG. Research on Test Conditions of Electric Strength of Arc-extinguishing Nozzle Materials for High Voltage Switch Circuit Breaker[J]. Insulating Materials, 2022 , 55 (7) : 99 -103 . DOI: 10.16790/j.cnki.1009-9239.im.2022.07.015
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.07.015
  • Receive Date：2022-02-22
  • Online Date：2025-12-23
  • Published：2022-07-20
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  • Received：2022-02-22
  • Revised：2022-03-28
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    Pinggao Group Co., Ltd., Pingdingshan 467001, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.07.015
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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