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| Content Provider | IET Digital Library |
|---|---|
| Author | Yang, Haisheng Liu, Ling Sun, Kai Li, Jinxian |
| Abstract | Defects in cable joints, induced in the process of manufacturing or assembling, can alter the distribution of the electrical field seriously. To investigate the impacts of different defects on electrical field distribution in cable joints, equivalent models of 110 kV cable joints with needle damage, impurity defect and scratch in insulation are established, respectively. The distribution of electrical potential and field strength in cable joints with dissimilar defects is obtained by finite element analysis (FEA). The results indicate that the needle damage, among the three different defects, generates most excessive electrical field strength distortion surrounding the defect, even exceeding the breakdown strength of air. The results show that these defects can easily result in partial discharge (PD), which leads them to pay more attention to the operation of cable joints. |
| Starting Page | 3184 |
| Ending Page | 3187 |
| Page Count | 4 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 16, Mar (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8569 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-29 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
| Subject Keyword | Breakdown Strength Cable Joint Cable Jointing Dielectric Breakdown And Discharges Dissimilar Defects Electric Potential Electrical Field Distribution Electrical Field Strength Distortion Electrical Potential Equivalent Model FEA Finite Element Analysis Impurity Defect Insulation Insulation And Insulating Coatings Needle Damage Partial Discharge Partial Discharges Power Cable Insulation Power Cables Voltage 110.0 KV |
| Content Type | Text |
| Resource Type | Article |
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