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Gas Production Law of Dodecylbenzene Insulating Oil Under Electrical Fault
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Jianping LIAO1, Jinwei CHU1, Fan GAO1, Yufei CHEN1, Yueyao ZHENG2, Chen ZHANG2, Lisheng ZHONG2
Insulating Materials | 2021, 54(9) : 60 - 64
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Insulating Materials | 2021, 54(9): 60-64
• Material Research •
Gas Production Law of Dodecylbenzene Insulating Oil Under Electrical Fault
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Jianping LIAO1, Jinwei CHU1, Fan GAO1, Yufei CHEN1, Yueyao ZHENG2, Chen ZHANG2, Lisheng ZHONG2
Affiliations
  • 1Maintenance and Test Center of EHV Transmission Company, China Southern Power Grid Co., Ltd., Guangzhou 510405, China
  • 2State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
Published: 2021-09-20 doi: 10.16790/j.cnki.1009-9239.im.2021.09.009
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Dodecylbenzene (DDB) is a kind of weak polar dielectric material widely used in self-contained high voltage oil filling cable and its accessories. A domestic dodecylbenzene insulating oil was selected as research object, and its physical and chemical properties, and electrical properties were tested. A test system for simulating different types of electrical faults in oil was established, and the gas production characteristics of the dodecylbenzene under two electrical faults of power frequency breakdown in oil and flashover along the oil-paper surface were studied. The results show that the dodecylbenzene insulating oil has excellent physical and chemical properties, and electrical properties. H2 and C2H2 are the characteristic gases under two electrical faults. According to the dissolved gases analysis (DGA) technology of mineral oil, the three ratio method of IEC is suitable for the fault type diagnosis of dodecylbenzene insulating oil, while the Dewey triangle method is not suitable.

dodecylbenzene  /  breakdown  /  DGA  /  gas production
Jianping LIAO, Jinwei CHU, Fan GAO, Yufei CHEN, Yueyao ZHENG, Chen ZHANG, Lisheng ZHONG. Gas Production Law of Dodecylbenzene Insulating Oil Under Electrical Fault[J]. Insulating Materials, 2021 , 54 (9) : 60 -64 . DOI: 10.16790/j.cnki.1009-9239.im.2021.09.009
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2021.09.009
  • Receive Date：2020-09-19
  • Online Date：2026-03-20
  • Published：2021-09-20
Article Data
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History
  • Received：2020-09-19
  • Revised：2020-11-04
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Affiliations
    1Maintenance and Test Center of EHV Transmission Company, China Southern Power Grid Co., Ltd., Guangzhou 510405, China
    2State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2021.09.009
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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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