Partial Discharge-Originated Deterioration of Insulating Material Investigated by Surface-Resistance and Potential Mapping
Abstract
:1. Introduction
2. Experimental Methodology
3. Specimen and Measurement Setup
3.1. Specimens
3.2. Measurement Setup
3.2.1. Accelerated Specimen Degradation
3.2.2. DC Charge Sprinkling
3.2.3. Surface-Resistance Mapping
3.2.4. Surface-Potential Mapping
4. Results
4.1. Surface-Resistance Mapping
4.2. Surface-Potential Mapping
5. Discussion
6. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Nomex 418 | PE | |
---|---|---|
Dielectric Strength, AC [kV/mm] | 30 | 40 |
Dielectric constant, dry | 2.3 | 2.2 |
Dissipation factor | 0.006 | 0.0009 |
Volume resistivity [Ω·m] | 1014 | 6 × 1015 |
Surface resistivity [Ω] | 4 × 1013 | 5 × 1013 |
Layer thickness [mm] | 0.96 = 8 × 0.12 | 1 |
Thresholds Thhigh_i [Ω] Bottom Void Wall | PE Pi [%] | Thresholds Thhigh_i [Ω] Bottom Void Wall | Nomex Pi [%] |
---|---|---|---|
1010 < R ≤ 1 × 1011 | 17.0 | 109 < R ≤ 2.5 × 1010 | 14.4 |
1 × 1011 < R ≤ 1 × 1012 | 39.3 | 2.5 × 1010 < R ≤ 5 × 1010 | 55.4 |
1 × 1012 < R ≤ 1 × 1013 | 42.6 | 5 × 1010 < R ≤ 7.5 × 1010 | 23.0 |
1 × 1013 < R ≤ 1 × 1014 | 1.1 | 7.5 × 1010 < R ≤ 1011 | 6.0 |
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Florkowski, M.; Kuniewski, M. Partial Discharge-Originated Deterioration of Insulating Material Investigated by Surface-Resistance and Potential Mapping. Energies 2023, 16, 5973. https://doi.org/10.3390/en16165973
Florkowski M, Kuniewski M. Partial Discharge-Originated Deterioration of Insulating Material Investigated by Surface-Resistance and Potential Mapping. Energies. 2023; 16(16):5973. https://doi.org/10.3390/en16165973
Chicago/Turabian StyleFlorkowski, Marek, and Maciej Kuniewski. 2023. "Partial Discharge-Originated Deterioration of Insulating Material Investigated by Surface-Resistance and Potential Mapping" Energies 16, no. 16: 5973. https://doi.org/10.3390/en16165973