摘要详情

ID / 提交时间

208 / 2024-04-17 17:14:51

标题

Experiment on the thermal stability of Perfluoro-Methyl-Vinyl-Ether: Potential SF6 Alternative in Insulation Applications

关键字

C3F6O,thermal stability,SF6 alternative

主题及专题

全体主题

状态

摘要录用

作者

Dongwei Sun / Electric Power Research Institute of Guangdong Power Grid Co.

Yanze Pang / State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University

Nian Tang / Key Laboratory of Sulfur Hexafluoride of China Southern Power Grid Co.

Li Li / Key Laboratory of Sulfur Hexafluoride of China Southern Power Grid Co.

Zhi Li / Electric Power Research Institute of Guangdong Power Grid Co. Ltd

摘要

Perfluoro-methyl-vinyl-ether with chemical formula C3F6O (CF3OCF=CF2) is recently reported as a potential SF6 alternative in insulation applications. In power equipment, the insulating gas could encounter overheating faults which are caused by rising contact resistance or insulation degradation. Therefore, in this paper, the thermal stability was measured by heating in a tubular furnace. In the thermal stability experiment, the gas is stable at 570 K and it starts to break down slightly at 620 K. At 670 K, the decomposition is obvious, while some gray-white solid appears on the wall of the tube, which may be produced by polymerization. It almost completely breaks down at 770 K. The thermal stability of the gas is sufficient to meet the power equipment operation.