Electrical Breakdown Study in CO2 and CO2-O2 Mixtures in AC, DC and Pulsed Electric Fields at 0.1-1 MPa Pressure
| Autor: | Christian Franck, A.J.M. Pemen, Siddharth Kumar, Juriy Pachin, T Tom Huiskamp, Martin Seeger |
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| Přispěvatelé: | Electrical Energy Systems, Cyber-Physical Systems Center Eindhoven, EIRES System Integration, EAISI Foundational, EIRES Chem. for Sustainable Energy Systems, Power Conversion |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
CO2
alternative gas insulation Electrical breakdown 010302 applied physics Electric engineering Materials science Field (physics) ddc:621.3 Analytical chemistry Electron Impulse (physics) 01 natural sciences law.invention Pressure measurement law Electric field 0103 physical sciences Electrode Breakdown voltage alternate gas insulation Electrical and Electronic Engineering SF6 |
| Zdroj: | IEEE Transactions on Dielectrics and Electrical Insulation, 28 (1) IEEE Transactions on Dielectrics and Electrical Insulation, 28(1):9351859, 158-166. Institute of Electrical and Electronics Engineers |
| ISSN: | 1070-9878 1558-4135 |
| DOI: | 10.3929/ethz-b-000480011 |
| Popis: | In this paper, the results of the experiments performed on electrical breakdown in CO2 and CO2-O2 mixtures in weakly and strongly non-uniform fields generated with impulse (2/160) µs, AC and DC waveforms are presented. In weakly non-uniform fields, the electrical breakdown field approximately follows 11 kV/(cm bar) when stressed with both AC and DC (positive and negative) waveforms. For positive impulse, the breakdown voltage is higher and the time lag to breakdown is scattered, indicating a lack of starting electrons from CO2 gas. Furthermore, the breakdown strength of CO2 - O2 (10-30)% mixtures is investigated. On application of negative polarity impulse, the breakdown strength is significantly higher than positive impulse in the measured pressure range of 0.3-0.7 MPa in strongly non-uniform fields, contrary to that seen during breakdown in weakly non-uniform fields. Breakdown voltage for negative impulse is further enhanced in a mixture of CO2-O2 (80-20)%. IEEE Transactions on Dielectrics and Electrical Insulation, 28 (1) ISSN:1070-9878 ISSN:1558-4135 |
| Databáze: | OpenAIRE |
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