| dc.contributor.advisor | Niayesh, Kaveh | |
| dc.contributor.advisor | Høidalen, Hans Kristian | |
| dc.contributor.author | Hansen, Erik | |
| dc.date.accessioned | 2023-10-03T17:24:26Z | |
| dc.date.available | 2023-10-03T17:24:26Z | |
| dc.date.issued | 2023 | |
| dc.identifier | no.ntnu:inspera:146046472:33655767 | |
| dc.identifier.uri | https://hdl.handle.net/11250/3093945 | |
| dc.description | Full text not available | |
| dc.description.abstract | I denne rapporten undersøkes de transiente overspenningene som produseres fra åpningen av en vakuumbryter i et mellomspennings smelteverk. En fiktiv modell av et smelteverk med korte kabellengder ble laget i ATPDraw. De verste transiente overspenningene ble funnet både ved transformatorterminalene på kildesiden og på lastsiden til vakuumbryteren, og optimale RC-snubberparametere ble funnet ved bruk av en ny Hybrid Wavelet Transform/Fast Fourier Transform – Genetisk Algoritme-metode som ble funnet i litteraturen. | |
| dc.description.abstract | In this thesis, the transient overvoltages produced from the opening of a vacuum circuit breaker in a medium voltage arc furnace application are investigated. A fictive model of an arc furnace installation with short cable lengths was made in ATPDraw. The worst-case transient overvoltages were found at both the source side and load side transformer terminals of the vacuum circuit breaker, and optimal RC snubber parameters were found using a novel Hybrid Wavelet Transform/Fast Fourier Transform - Genetic Algorithm method found in the literature. | |
| dc.language | eng | |
| dc.publisher | NTNU | |
| dc.title | Investigating Transient Overvoltages due to Multiple Reignitions when Switching Small Inductive Loads | |
| dc.type | Master thesis | |