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.
During the past two decades, utilities have increased transformer's utilization by about 30% in North American power distribution systems. High utilization levels, for transformers in particular, make utility companies more financially efficient, and this is potentially beneficial to both stockholders and customers. However, reduced customer service reliability is often detected in highly-utilized...
This paper investigates the additional iron loss generated in the laminated silicon sheets of the core or the magnetic shields of large power transformers due to the leakage flux. A verification model is well established, and an efficient analysis method is implemented and validated. Both the magnetic and electric anisotropy of the oriented silicon steel sheets are taken into account in 3-D FEM eddy...
A series of transformer-based benchmark models, referred to as Problem 21 Family, are well established to model stray-field loss generated in the structural components of large power transformers. The configuration of the benchmark family, the engineering background of every member model, and the typical measured and calculated results for each model is presented. The new developments of Problem 21,...
A library of components for simulation and analysis of large vehicular electrical power systems using Modelica language is presented. Components are described using different levels of model complexity, catering for both detailed high fidelity transient switching dynamics and averaged value descriptions which, being time invariant, are a computationally efficient and useful tool for design, stability...
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.