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A new type of insulating paper with aramid nanofiber as the basic structural unit was prepared, and its ageing characteristics in natural ester insulating oil and mineral insulating oil were systematically investigated and compared with the commercial Nomex T410 insulating paper. The results show that the aramid nanofiber-based insulating paper has better thermal stability and ageing resistance, and the mechanical and electrical properties of the aramid nanofiber-based insulating paper are better than those of Nomex T410 insulating paper after accelerated thermal ageing test under the same condition. In addition, the new oil-paper insulation system composed by natural ester insulating oil and aramid nanofiber-based insulating paper can effectively extend the life of the transformer, which provides a reference for the insulation design and development of green low-carbon electrical energy equipment.
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| 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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