Modeling the saturation processes of a power-transformer core under simultaneous direct and alternating current passing through the winding
- Авторы: Vakhnina V.V.1, Kuznetsov V.N.1, Shapovalov V.A.1, Samolina O.V.1
- 
							Учреждения: 
							- Togliatti State University
 
- Выпуск: Том 88, № 4 (2017)
- Страницы: 223-228
- Раздел: Article
- URL: https://journals.rcsi.science/1068-3712/article/view/230373
- DOI: https://doi.org/10.3103/S1068371217040137
- ID: 230373
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Аннотация
A mathematical model of a three-phase two-winding step-up power transformer with the winding circuit Δ/Yo with simultaneous ac and dc currents passed through the grounded winding has been developed. The proposed model is represented by a system of differential equations, which are nonlinear because of the nonlinearity of the inductive resistances of the magnetization curve. The calculation results for a TDTs-400000/242/20 shell–core transformer are given. The model takes into account the effect of dc on the saturation of the power-transformer core, which is especially important under asymmetrical modes that can occur during thunderstorms, seismic activities, or space-weather disturbances.
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Об авторах
V. Vakhnina
Togliatti State University
							Автор, ответственный за переписку.
							Email: journal-elektrotechnika@mail.ru
				                					                																			                												                	Россия, 							Togliatti, Samara oblast, 445020						
V. Kuznetsov
Togliatti State University
														Email: journal-elektrotechnika@mail.ru
				                					                																			                												                	Россия, 							Togliatti, Samara oblast, 445020						
V. Shapovalov
Togliatti State University
														Email: journal-elektrotechnika@mail.ru
				                					                																			                												                	Россия, 							Togliatti, Samara oblast, 445020						
O. Samolina
Togliatti State University
														Email: journal-elektrotechnika@mail.ru
				                					                																			                												                	Россия, 							Togliatti, Samara oblast, 445020						
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