PDF
Full
Outline
In the development of gas insulated switchgear (GIS) and gas insulated transmission lines (GIL) towards higher voltage and larger capacity, the insulation performance at the internal insulator's gas-solid interface is recognized as a critical factor affecting the operational safety of GIS/GIL equipment. To ensure the insulation safety of GIS/GIL equipment in engineering applications, it is imperative to elucidate the insulation failure mechanisms at the gas-solid interface and explore methods to enhance its insulation performance. In this paper, first, the research progress in the field of gas-solid interface insulation was reviewed, the mechanisms of dynamic charge behavior at the gas-solid interface and its influencing factors were analyzed, and methods for charge regulation at the gas-solid interface were introduced. Subsequently, the mechanism of insulation failure influenced by metal particles at the interface was discussed, and the motion characteristics of metal particles and their mitigation measures were summarized. Following this, the insulation characteristics at the gas-solid interface in environmental-friendly insulating gases were described, and the methods for electric field regulation and flashover voltage enhancement at the interface were summarized. Finally, the research directions for gas-solid interface insulation of insulator in GIS/GIL were outlined.
PDF
347
168
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
