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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wensheng Gao Ning Su Qingduo Yin |
| Copyright Year | 2009 |
| Description | Author affiliation: Department of Electrical Engineering, Tsinghua University, Beijing 100084, China (Wensheng Gao; Ning Su; Qingduo Yin) |
| Abstract | The void defect in solid insulation can be considered as one of the important defects which will induce partial discharges (PD) and insulation degradation. In this paper, the relations between the cylindrical void size and PD characteristics are presented and summarized particularly. The PD inceptive electrical field (PDIE), the maximal PD magnitude and the impulse waveforms are especially studied with different void defects' depths and diameters. These PD characteristics, especially for PD impulse waveforms, changed dramatically with the increase of void size, which imply the various ionization states in PD process. The results show that large size voids always induce low PDIE and large maximal PD magnitude, which confirm the certain relations between insulation degradation degree and PD characteristics. Some of the results show that the PD with more residual ions may cause much serious degradation of solid insulations. The floating electrode defect test has been designed as a proving trial lastly. |
| Starting Page | 501 |
| Ending Page | 504 |
| File Size | 2941492 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424443673 |
| DOI | 10.1109/ICPADM.2009.5252380 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-07-19 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Partial discharges Solids Degradation Circuit testing Dielectrics and electrical insulation Electrons Coupling circuits Voltage Aging Dielectric materials degradation degree Partial Discharge size effect void defects residual ions |
| Content Type | Text |
| Resource Type | Article |
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