Widger, Phillip  ORCID: https://orcid.org/0000-0002-0662-8590, Griffith, H. and Haddad, Abderrahmane ORCID: https://orcid.org/0000-0003-4153-6146
2018.
Insulation strength of CF3I-CO2 gas mixtures as an alternative to SF6 in MV switch disconnectors.
IEEE Transactions on Dielectrics and Electrical Insulation
25
(1)
, pp. 330-338.
10.1109/TDEI.2018.006932
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Abstract
This paper evaluates the insulation performance of gas mixtures of trifluoroiodomethane and carbon dioxide (CF3I-CO2) in a medium voltage switch disconnector. Practical testing compares the results of CF3I-CO2 against SF6 to examine whether CF3I-CO2 could be a viable alternative when directly substituted into manufactured switch disconnectors in a purely insulating role. Positive standard lightning impulses were applied to the MV switchgear to determine whether CF3I-CO2 can maintain the withstand voltage for which the switch disconnector is rated when filled with SF6. The results show that certain gas mixtures of CF3I-CO2, with a higher concentration of CF3I, could be used to insulate switch disconnectors against standard lightning impulses at the rated pressure.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Engineering |
| Publisher: | IEEE |
| ISSN: | 1070-9878 |
| Date of First Compliant Deposit: | 20 March 2018 |
| Date of Acceptance: | 21 November 2017 |
| Last Modified: | 03 Dec 2024 23:45 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/110055 |
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