A comparative study on icing morphology and process of glaze and light rime in suspension composite insulators on transmission lines

作者：Xue, Yiwei; Yang, Lin; Hao, Yanpeng^*; Gu, Yu; Liu, Guote; Li, Licheng

来源：Transactions of China Electrotechnical Society, 2016, 31(8): 212-219.

• Comparative studies
• Composite insulators
• Early Warning System
• Hydromechanics
• Insulator
• Insulator flashover
• Meteorological parameters
• Microphysical process

Icing morphology is one of the important factors on insulator flashover. Currently, there are no related studies on various types of icing morphologies, their differences, and their causes, and less on microphysical processes of insulator icing morphogenesis. Icing process includes water droplet impacting, capturing and freezing. In this paper, a comparative study on two types of icing such as glaze and light rime on suspension composite insulator, and their differences, based on the monitored images by China southern power grid transmission line disaster (icing) early warning systems. Water droplets collide process with insulators for two types of icing morphologies was simulated via Fluent and the number and density of water droplets colliding on the top surface, the end and the roots of the sheds on the simulated composite insulator were calculated. The freezing process of water drops was investigated through an analysis on micro-meteorological parameters, the reason of icing morphology different was discuss from the drop collide with the insulator process and the drop freezing process.

• 出版日期2016-4-25
• 单位华南理工大学