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Comparative Study on Properties of Domestic and Imported Meta-aramid Paper for Traction Motor
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Panliang QIN1, 2, Yonghong JI1, 2, Yan LIU1, 2, Weiqian SONG1, 2, Jingyi REN1, 2, Guanfang LIU1, 2
Insulating Materials | 2022, 55(2) : 23 - 27
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Insulating Materials | 2022, 55(2): 23-27
• Material Research •
Comparative Study on Properties of Domestic and Imported Meta-aramid Paper for Traction Motor
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Panliang QIN1, 2, Yonghong JI1, 2, Yan LIU1, 2, Weiqian SONG1, 2, Jingyi REN1, 2, Guanfang LIU1, 2
Affiliations
  • 1CRRC Yongji Electric Co., Ltd., Yongji 044502, China
  • 2Shanxi Key Laboratory of Traction Motor for Rail Transit, Yongji 044502, China
Published: 2022-02-20 doi: 10.16790/j.cnki.1009-9239.im.2022.02.003
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In order to compare the properties of domestic and imported meta-aramid paper for traction motor, we tested and analyzed the structure, mechanical properties, and dielectric properties of domestic paper A and B and imported paper. The electrical properties of stator models using the three kinds of paper were tested. The results show that the structure of paper A is relatively loose, and its tensile strength is slightly lower than that of paper B and imported paper; The elongation at break of the three meta-aramid papers is stably maintained at 17%‒19%. The edge tear strength of paper A and B is generally higher than that of imported paper. The breakdown voltage of paper A is slightly lower than that of paper B and imported paper, but the breakdown voltage of paper A is higher than that of paper B and imported paper after impregnation. This is due to the loose structure of paper A, which is conducive to the entry of insulating paint into the paper to fill the gap. The dielectric loss factor, resistance, capacitance, and withstand voltage performance of the stator models are normal, which shows that the two kinds of domestic meta-aramid paper can replace the imported one as slot insulation and filler strip.

meta-aramid paper  /  tensile strength  /  edge tear resistance  /  breakdown voltage
Panliang QIN, Yonghong JI, Yan LIU, Weiqian SONG, Jingyi REN, Guanfang LIU. Comparative Study on Properties of Domestic and Imported Meta-aramid Paper for Traction Motor[J]. Insulating Materials, 2022 , 55 (2) : 23 -27 . DOI: 10.16790/j.cnki.1009-9239.im.2022.02.003
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.02.003
  • Receive Date：2021-04-12
  • Online Date：2025-12-22
  • Published：2022-02-20
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History
  • Received：2021-04-12
  • Revised：2021-05-11
Funding
Affiliations
    1CRRC Yongji Electric Co., Ltd., Yongji 044502, China
    2Shanxi Key Laboratory of Traction Motor for Rail Transit, Yongji 044502, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.02.003
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Citations
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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