Details
| Original language | English |
|---|---|
| Title of host publication | Conference Proceedings 34th Electrical Insulation Conference, EIC 2016 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 170-173 |
| Number of pages | 4 |
| ISBN (electronic) | 978-1-4673-8706-4, 978-1-5090-2698-2 |
| ISBN (print) | 978-1-4673-8707-1 |
| Publication status | Published - 22 Aug 2016 |
Abstract
Keywords
- composite insulators, flashover, hybrid voltage
ASJC Scopus subject areas
- Materials Science(all)
- Polymers and Plastics
- Materials Science(all)
- Ceramics and Composites
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
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Conference Proceedings 34th Electrical Insulation Conference, EIC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 170-173 7548687.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Flashover Performance of Polluted Composite Insulators Under AC and Hybrid AC/DC Field Stress
AU - Saadati, Hassan
AU - Seifert, J. M.
AU - Werle, Peter
AU - Gockenbach, Ernst
AU - Borsi, H.
PY - 2016/8/22
Y1 - 2016/8/22
N2 - Integration of a DC transmission system into the existing AC system is proposed in order to transmit more power from north to the south of Germany. Effects of such hybrid AC/DC fields on the dielectric characteristics of insulators, bushings and other power system components are unknown. The outdoor insulators of transmission lines and substations suffer from different pollution such as industrial contaminants, fog, drizzle and natural dust. These contaminations may affect the electrical performance of insulators or even lead to flashover of the insulators. There is a lot of researches about ac flashover of outdoor insulators. But in case of hybrid AC/DC voltage stress more detailed investigations are needed. In this paper the hybrid AC/DC flashover performance of insulators with various pollution layers are investigated. In order to have a comparative investigation between AC and hybrid AC/DC flashovers, four types of pollutions have been applied to the composite insulators and the flashover voltage have been measured under AC and hybrid AC/DC voltages with two different ratios of AC and DC voltages. The results show that the contribution of pollutant layer on the surface of insulator has a major effect on the flashover voltage unlike the conductivity of pollutant layer.
AB - Integration of a DC transmission system into the existing AC system is proposed in order to transmit more power from north to the south of Germany. Effects of such hybrid AC/DC fields on the dielectric characteristics of insulators, bushings and other power system components are unknown. The outdoor insulators of transmission lines and substations suffer from different pollution such as industrial contaminants, fog, drizzle and natural dust. These contaminations may affect the electrical performance of insulators or even lead to flashover of the insulators. There is a lot of researches about ac flashover of outdoor insulators. But in case of hybrid AC/DC voltage stress more detailed investigations are needed. In this paper the hybrid AC/DC flashover performance of insulators with various pollution layers are investigated. In order to have a comparative investigation between AC and hybrid AC/DC flashovers, four types of pollutions have been applied to the composite insulators and the flashover voltage have been measured under AC and hybrid AC/DC voltages with two different ratios of AC and DC voltages. The results show that the contribution of pollutant layer on the surface of insulator has a major effect on the flashover voltage unlike the conductivity of pollutant layer.
KW - composite insulators
KW - flashover
KW - hybrid voltage
UR - http://www.scopus.com/inward/record.url?scp=84988395795&partnerID=8YFLogxK
U2 - 10.1109/EIC.2016.7548687
DO - 10.1109/EIC.2016.7548687
M3 - Conference contribution
SN - 978-1-4673-8707-1
SP - 170
EP - 173
BT - Conference Proceedings 34th Electrical Insulation Conference, EIC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
ER -