Araştırma Makalesi
Analysis of the Effects of Capacitances on Transformers in Transient Regimes by Finite Element Method
Öz
High currents occurring in transformers in transient state may cause the insulation materials to deteriorate. In this paper, the effects of the capacitance values between the winding and the core and between the windings on the transition of the lightning strike applied to the secondary side to the primary side of power transformers were analyzed. Transformer models were created in ANSYS@Maxwell-2D environment, which realizes a solution based on Finite Element Method (FEM). In simulation studies, a lightning impulse voltage of 1/100 µs was applied to the secondary side of the transformer with a special method. It has been observed that the change of the values of the capacitances between the windings in power transformers affects the amplitude of the primary lightning impulse voltage. With this study, the weak points of the insulation materials of transformers windings were determined and the electric field distribution was analyzed.
Anahtar Kelimeler
Kaynakça
- Akdağ, M., Mamiş, M.S, Investigation the Effect of Capacitances on Lightning Impulse in Transformers, Güç Sistemleri Konferansi, 15-16 November, Ankara, 2018.
- Morched, A., Marti, L., Ottevangers, J., a high frequency transformer model for the EMTP, IEEE transactions on power delivery, 8(3), 1615-1626, 1993.
- Özüpak, Y., Mamiş, M.S, Teke, İ.H., Electromagnetic field and total loss analysis of transformers by finite element method, International Journal of Engineering And Computer Science, 8(1), 24451-24460, 2019.
- Özüpak, Y., Mamiş, M.S, Realization of electromagnetic flux and thermal analyses of transformers by finite element method, IEEJ Transactions on Electrical and Electronic Engineering, 14(10), 1478-1484, 2019.
- Subedi, D., Lightning induced over-voltages in power transformer and voltage spikes in connected load, Master Thesis, Aalto University, Helsinki, Finland, 2017.
- Shirvani, A., Malekian, K., Schmidt, U., Schufft, W., A new power transformer model over wide frequency range for EMTP, 45th International Universities Power Engineering Conference (UPEC2010), 1-6, 2010.
- Sabiha, N.A., Lightning-induced overvoltages in mediumvoltage distribution systems and customer experienced voltage spikes, PhD Thesis, Aalto University, Helsinki, Finland, 2010.
- Shareghi, M., Phung, B.T., Naderi, M.S., Blackburn, T.R., Ambikairajah, E., Effects of current and voltage harmonics on distribution transformer losses, International Conference on Condition Monitoring and Diagnosis (CMD), 633-636, 2012
- Soh, T.L.G., Said, D.M., Ahmad, N., Nor, K.M., Salim, F., Experimental study on the impact of harmonics on transformer, IEEE 7th International Power Engineering and Optimization Conference (PEOCO 2013), 686-690, 2013
Yıl 2021,
Cilt: 13 Sayı: 1, 1 - 9, 29.05.2021
Öz
Kaynakça
- Akdağ, M., Mamiş, M.S, Investigation the Effect of Capacitances on Lightning Impulse in Transformers, Güç Sistemleri Konferansi, 15-16 November, Ankara, 2018.
- Morched, A., Marti, L., Ottevangers, J., a high frequency transformer model for the EMTP, IEEE transactions on power delivery, 8(3), 1615-1626, 1993.
- Özüpak, Y., Mamiş, M.S, Teke, İ.H., Electromagnetic field and total loss analysis of transformers by finite element method, International Journal of Engineering And Computer Science, 8(1), 24451-24460, 2019.
- Özüpak, Y., Mamiş, M.S, Realization of electromagnetic flux and thermal analyses of transformers by finite element method, IEEJ Transactions on Electrical and Electronic Engineering, 14(10), 1478-1484, 2019.
- Subedi, D., Lightning induced over-voltages in power transformer and voltage spikes in connected load, Master Thesis, Aalto University, Helsinki, Finland, 2017.
- Shirvani, A., Malekian, K., Schmidt, U., Schufft, W., A new power transformer model over wide frequency range for EMTP, 45th International Universities Power Engineering Conference (UPEC2010), 1-6, 2010.
- Sabiha, N.A., Lightning-induced overvoltages in mediumvoltage distribution systems and customer experienced voltage spikes, PhD Thesis, Aalto University, Helsinki, Finland, 2010.
- Shareghi, M., Phung, B.T., Naderi, M.S., Blackburn, T.R., Ambikairajah, E., Effects of current and voltage harmonics on distribution transformer losses, International Conference on Condition Monitoring and Diagnosis (CMD), 633-636, 2012
- Soh, T.L.G., Said, D.M., Ahmad, N., Nor, K.M., Salim, F., Experimental study on the impact of harmonics on transformer, IEEE 7th International Power Engineering and Optimization Conference (PEOCO 2013), 686-690, 2013
Toplam 9 adet kaynakça vardır.
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Konular | Mühendislik |
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 29 Mayıs 2021 |
| Kabul Tarihi | 29 Ocak 2021 |
| Yayımlandığı Sayı | Yıl 2021 Cilt: 13 Sayı: 1 |
