Electrical insulation properties of the perfluoronitrile C4F7N

被引：94

作者：

Chachereau, A. ^{[1
]}

Hoesl, A. ^{[1
]}

Franck, C. M. ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Power Syst & High Voltage Labs, Phys Str 3, CH-8092 Zurich, Switzerland

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2018年 / 51卷 / 49期

关键词：

perfluoronitrile; C4F7N; electron attachment; electrical insulation; SF6; replacement; COEFFICIENTS; REPLACEMENT;

D O I：

10.1088/1361-6463/aae458

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electrical insulation properties of pure C4F7N and of C4F7N/N-2 and CC4F7N/CO2 mixtures are investigated in a pulsed Townsend setup. The electron rate and transport coefficients and the density-reduced critical electric field of these mixtures are obtained, and a synergy effect is observed in C4F7N/N-2 and C4F7N/CO2 mixtures. The total electron attachment cross section of C4F7N is estimated based on the attachment rate to C4F7N in diluted C4F7N/N-2, C4F7N/CO2 and C4F7N/O-2/CO2 mixtures. Measurements in pure C4F7N at pressures of a few hundred pascal show that ion kinetics play a major role in C4F7N discharges and that further modelling is required to assess the electric strength of C4F7N at high pressures.

引用

页数：10

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