Abstract
Traditional search processes of gases or gas mixtures for replacing SF6involve time consuming measurements of partial discharges and breakdown behaviour for several voltage waveforms and different field configurations. Recently a model for prediction of this behaviour for SF6was described in literature. The model only requires basic properties of the gas such as the critical field strength and the effective ionization coefficient, which can be obtained by swarm parameter measurements, and thermodynamic properties, which can be calculated. In this paper, we show for the well-known and electronegative gas octafluoropropane (C3F8) that it is possible to transfer the model developed for SF6to this gas to describe the breakdown behaviour of C3F8. Thus the model can be beneficial in the screening process of new insulation gases.
Original language | English |
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Article number | 405203 |
Journal | Journal of Physics D: Applied Physics |
Volume | 47 |
Issue number | 40 |
DOIs | |
State | Published - 2014 |
Externally published | Yes |
Keywords
- breakdown
- octafluoropropane
- partial discharge