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| Content Provider | IET Digital Library |
|---|---|
| Author | Ahmadi, Mahmoud Eshagh Niasati, Mohsen Bafrooei, Mohammad Reza Barzegar |
| Abstract | Service unavailability of transmission lines, particularly in mountain areas due to the direct and indirect lightning strikes, is considered as a challenging issue within electric companies. Therefore, the efforts to mitigate the power outages caused by this phenomenon have been introduced. In this study, an attempt has been made to study the different types of externally gapped line arresters (EGLAs) considering the Pinceti model and discharge voltage curve. Based on the best selected EGLA, the installation effect of EGLA on the possibility of instance back-flashover in different phases of the transmission line is investigated in the presence of downstream shield wire. For assessment, a double-circuit 400 kV transmission line in a mountainous area is modelled in EMTP-RV software. Then, an extensive analysis is carried out to verify the effectiveness of this method. The obtained results show the acceptable transmission line direct lightning protection can be achieved by four EGLAs in upper and middle phases with downstream shield wire. Although employing the downstream shield wires in the transmission line imposes more costs, but by using them, the scale and capability of EGLAs can be reduced. |
| Starting Page | 564 |
| Ending Page | 575 |
| Page Count | 12 |
| ISSN | 17518822 |
| Volume Number | 14 |
| e-ISSN | 17518830 |
| Issue Number | Issue 5, Jul (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-smt/14/5 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2019.0074 |
| Journal | IET Science, Measurement & Technology |
| Publisher Date | 2019-12-05 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Acceptable Transmission Line Direct Lightning Protection Arresters Direct Lightning Strikes Discharge Voltage Curve Downstream Shield Wire EGLAs EMTP Externally Gapped Line Arrester Flashover Indirect Lightning Strikes Lightning Performance Lightning Protection Mountain Areas Mountainous Area Optimal EGLA Overhead Power Line Overhead Transmission Line Power Engineering Computing Power Overhead Line Power System Protection Power Transmission Line Power Transmission Protection Protection Apparatus Selected Best EGLA Voltage 400.0 KV |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering |
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