2018
DOI: 10.1088/1361-6463/aad174
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Electrical insulation properties of the perfluoroketone C5F10O

Abstract: The electrical insulation properties of pure C 5 F 10 O and of C 5 F 10 O/N 2 and C 5 F 10 O/CO 2 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 in C 5 F 10 O/N 2 and C 5 F 10 O/CO 2 mixtures. The total electron attachment cross section of C 5 F 10 O is estimated based on the attachment rate to C 5 F 10 O in diluted C 5 F 10 O/N 2 and C 5 F 10 O… Show more

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Cited by 44 publications
(36 citation statements)
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“…Using the integral of the measured current I exp as described in [14], the ionization and attachment rate coefficients k i and k a are obtained as…”
Section: Ionization and Attachment Ratesmentioning
confidence: 99%
See 1 more Smart Citation
“…Using the integral of the measured current I exp as described in [14], the ionization and attachment rate coefficients k i and k a are obtained as…”
Section: Ionization and Attachment Ratesmentioning
confidence: 99%
“…As mentioned in [14], this method relies on the assumption that no ionization events occur after the electron drift time T e , for instance due to electron detachment from negative ions, since this would increase the measured current and result in overestimating the values of k i and k a . In the limit of low pressures this assumption is justified because the ion-neutral collisions become negligible.…”
Section: Ionization and Attachment Ratesmentioning
confidence: 99%
“…A quartz slab coated with a double layer of Mg/Pd is placed on one of the electrodes and acts as an electron emitter by releasing around 10 7 electrons when illuminated by a 266 nm UV-laser pulse of 1.5 ns duration. The reader can refer to [8] for more detail regarding the setup. Subject to the electric field, the electron swarm drifts towards the anode and undergoes multiple collisions with neutral gas molecules present in the vessel.…”
Section: Methodsmentioning
confidence: 99%
“…On the other hand, C 4 F 7 N:CO 2 :O 2 mixtures are tested in pilot gas-insulated high voltage lines in the UK [7]. Electrical properties of C 4 F 7 N and C 5 F 10 O have already been thoroughly investigated in binary mixtures with CO 2 and N 2 in a Pulsed Townsend experiment [8,9] and breakdown voltages are also reported [10,2].…”
Section: Introductionmentioning
confidence: 99%
“…32 Chachereau et al have found that there is a signicant synergy between C 5 F 12 O and N 2 or CO 2 , and the C 5 F 12 O gas mixtures can reach the insulation strength requirement of SF 6 by increasing the gas pressure. 33 In addition, it is important to study the decomposition characteristics of the C 5 F 10 O gas mixtures. Our team calculated the decomposition mechanism of C 5 F 10 O using density functional theory (DFT).…”
Section: Introductionmentioning
confidence: 99%