The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Capacitances in physical distributed circuits of power transformers for simulation based frequency response interpretation have been so far calculated analytically based on internal transformer design and dielectric property data. For the practical application on in-service power transformers, the capacitances should be appropriately determined based on analysis of terminal measurements and simulation...
Inductances in physical distributed circuits of power transformers for simulation based frequency response interpretation have been so far calculated analytically based on internal transformer design and core material property data. For practical application on in-service power transformers, the inductances should be appropriately determined based on analysis of terminal measurements. This paper presents...
This paper describes the feasibility of a large high speed doubly fed induction generator. The equivalent circuit parameters are found and both steady state and short circuit conditions are analyzed. Two cases are considered as faults, the three phase rotor short circuit and the single phase rotor short circuit. Short circuit currents, induced voltages in the rotor windings and the torque characteristics...
The Frequency Response Analysis (FRA) is considered as an useful measure to detect deformation and changes of the active part of transformers. However, the corresponding interpretation is still subject of different investigation as there are many questions to be answered.
The lumped transformer equivalent circuit has been recently adapted based on duality principle and verified for the purposes of transient analysis with reasonable accuracy and frequency response analysis. However such circuit is developed and validated for balanced and unbalanced three-phase excitation. On the other hand, several diagnostic tests such as Frequency Response Analysis (FRA), ratio, short-circuit...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.