Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 21st International Symposium on High Voltage Engineering, Volume 2, ISH 2019 |
| Place of Publication | Cham |
| Publisher | Springer Nature |
| Pages | 221-230 |
| Number of pages | 10 |
| ISBN (electronic) | 978-3-030-31680-8 |
| ISBN (print) | 9783030316792 |
| Publication status | Published - 2020 |
| Event | 21st International Symposium on High Voltage Engineering, ISH 2019 - Budapest, Hungary Duration: 26 Aug 2019 → 30 Aug 2019 |
Publication series
| Name | Lecture Notes in Electrical Engineering |
|---|---|
| Volume | 599 LNEE |
| ISSN (Print) | 1876-1100 |
| ISSN (electronic) | 1876-1119 |
Abstract
The aim of this work is the investigation of the electrical properties of such layered dielectrics under high DC stress. The individual layers have different dielectric strengths, which are dependent on the electric conductivity and the temperature. For this purpose, test samples were made, which are composed of two silicone layers, one without fillers and the other made of the same base silicone, mixed with a specific amount of graphite powder. A challenge here is the determination of an appropriate amount of graphite additive, without deteriorating the dielectric strength of the layered silicone sample. It must be also ensured that by the preparation of samples a homogenous distribution of the graphite in the material prevails. Simultaneously, the samples should be bubble-free and flawless. Accordingly, the material was subjected to several degassing and vibration processes. The change in the dielectric strength is to be investigated by measuring and comparing the DC breakdown voltage on layered and non-layered test samples. In order to clarify the influence of the temperature on the properties of the silicone elastomer, each measurement series was repeated at different temperatures. In addition, the breakdown spots are analyzed with a digital microscope in order to determine the direction of the breakdown in the layered test samples.
Keywords
- HVDC-cable, Layered dielectrics, Space charge
ASJC Scopus subject areas
- Engineering(all)
- Industrial and Manufacturing Engineering
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Proceedings of the 21st International Symposium on High Voltage Engineering, Volume 2, ISH 2019. Cham: Springer Nature, 2020. p. 221-230 (Lecture Notes in Electrical Engineering; Vol. 599 LNEE).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Breakdown behaviour of silicon insulation with differently doped layers under DC stress
AU - Aganbegović, Mirnes
AU - Imani, Mohammad Taghi
AU - Werle, Peter
PY - 2020
Y1 - 2020
N2 - The aim of this work is the investigation of the electrical properties of such layered dielectrics under high DC stress. The individual layers have different dielectric strengths, which are dependent on the electric conductivity and the temperature. For this purpose, test samples were made, which are composed of two silicone layers, one without fillers and the other made of the same base silicone, mixed with a specific amount of graphite powder. A challenge here is the determination of an appropriate amount of graphite additive, without deteriorating the dielectric strength of the layered silicone sample. It must be also ensured that by the preparation of samples a homogenous distribution of the graphite in the material prevails. Simultaneously, the samples should be bubble-free and flawless. Accordingly, the material was subjected to several degassing and vibration processes. The change in the dielectric strength is to be investigated by measuring and comparing the DC breakdown voltage on layered and non-layered test samples. In order to clarify the influence of the temperature on the properties of the silicone elastomer, each measurement series was repeated at different temperatures. In addition, the breakdown spots are analyzed with a digital microscope in order to determine the direction of the breakdown in the layered test samples.
AB - The aim of this work is the investigation of the electrical properties of such layered dielectrics under high DC stress. The individual layers have different dielectric strengths, which are dependent on the electric conductivity and the temperature. For this purpose, test samples were made, which are composed of two silicone layers, one without fillers and the other made of the same base silicone, mixed with a specific amount of graphite powder. A challenge here is the determination of an appropriate amount of graphite additive, without deteriorating the dielectric strength of the layered silicone sample. It must be also ensured that by the preparation of samples a homogenous distribution of the graphite in the material prevails. Simultaneously, the samples should be bubble-free and flawless. Accordingly, the material was subjected to several degassing and vibration processes. The change in the dielectric strength is to be investigated by measuring and comparing the DC breakdown voltage on layered and non-layered test samples. In order to clarify the influence of the temperature on the properties of the silicone elastomer, each measurement series was repeated at different temperatures. In addition, the breakdown spots are analyzed with a digital microscope in order to determine the direction of the breakdown in the layered test samples.
KW - HVDC-cable
KW - Layered dielectrics
KW - Space charge
UR - http://www.scopus.com/inward/record.url?scp=85085049924&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-31680-8_23
DO - 10.1007/978-3-030-31680-8_23
M3 - Conference contribution
AN - SCOPUS:85085049924
SN - 9783030316792
T3 - Lecture Notes in Electrical Engineering
SP - 221
EP - 230
BT - Proceedings of the 21st International Symposium on High Voltage Engineering, Volume 2, ISH 2019
PB - Springer Nature
CY - Cham
T2 - 21st International Symposium on High Voltage Engineering, ISH 2019
Y2 - 26 August 2019 through 30 August 2019
ER -