Small-Scale Arc Fault Testing of Medium-Voltage Metal-Enclosed Switchgear
| Autor: | Elin Fjeld, Svein Thore Hagen |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
020209 energy Nuclear engineering metal-enclosed switchgear Full scale Energy Engineering and Power Technology Arc-fault circuit interrupter 02 engineering and technology Dielectric gas internal arc Switchgear law.invention small-scale experiments law 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering single phase business.industry electrode erosion Electrical engineering thermal transfer coefficient Internal pressure Arc energy Pressure measurement Volume (thermodynamics) business pressure rise thermal hazard Voltage |
| Zdroj: | IEEE Transactions on Power Delivery. 31:37-43 |
| ISSN: | 1937-4208 0885-8977 |
| DOI: | 10.1109/tpwrd.2015.2482002 |
| Popis: | Internal arc fault tests are important for ensuring the safety of medium-voltage metal-enclosed switchgears. Since these tests are conducted at full scale, the costs of the test objects as well as the high-power laboratory are significant. This paper presents an experimental study to clarify whether such tests can be simplified by downscaling. Tests with volume and energy downscaled to 1/3 and 1/10, respectively, were performed on a single-phase arrangement with air as the insulating gas. The test results showed that the internal pressure rise caused by the arc can be reproduced well using a smaller compartment and lower current. The potential damage caused by the exhaust of the hot gas escaping through the pressure-relief openings is more challenging to predict from small-scale tests. |
| Databáze: | OpenAIRE |
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