Simple Geomagnetic Induced Current Detection and Monitoring in Power Transformers
| Autor: | José Ramírez, Joaquín H Rodríguez–Rodríguez, Rito Mijarez |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Measurement + Control, Vol 49 (2016) |
| Druh dokumentu: | article |
| ISSN: | 0020-2940 00202940 |
| DOI: | 10.1177/0020294016663973 |
| Popis: | This paper presents a detection system of geomagnetic induced currents based on the measurement of the magnetic field outside the magnetic core; it is possible to evaluate the core operating conditions of power transformers under the effect of geomagnetic induced currents. The nonlinear behavior of the core due to asymmetric saturation produces a distortion in the external magnetic field which can be evaluated by the measurement of the magnitude of even harmonics; we describe the experimental setup and the instrumentation required for real-time detection of asymmetric saturation caused by quasi-DC magnetic fields. The experimental results obtained by simulating the presence of geomagnetic induced currents are presented. |
| Databáze: | Directory of Open Access Journals |
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