| Journal: | Controle & automacao |
| Database: | PERIÓDICA |
| System number: | 000315404 |
| ISSN: | 0103-1759 |
| Authors: | Guerra, Francisco das Chagas Fernandes1 Mota, Wellington Santos |
| Institutions: | 1Universidade Federal de Campina Grande, Campina Grande, Paraiba. Brasil |
| Year: | 2005 |
| Season: | Jul-Sep |
| Volumen: | 16 |
| Number: | 3 |
| Pages: | 382-389 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico |
| English abstract | This paper presents a current transformer model that is useful on low frequency applications. To describe the iron core magnetic behaviour of the iron core, a hysteresis model is proposed, which is able to generate minor asymmetric loops and remanent flux. The effects of classic eddy current losses and anomalous losses are represented by linear and nonlinear resistors, respectively. The obtained results are compared with those calculated by Preisach's model and measured in laboratory. This model may be applied in power system protection studies, as it is the case of numeric correction of distorted secondary currents in current transformers (CT's) |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería eléctrica, Transformadores, Corriente eléctrica, Histéresis, Pérdidas, Protección |
| Keyword: | Engineering, Electrical engineering, Transformers, Electric current, Hysteresis, Losses, Protection |
| Full text: | Texto completo (Ver HTML) |
