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.
As the population of transformers in service increases and becomes older, more attentions are focused on their availability and reliability. Through decades' progress, it is undeniable that considerable advances have been achieved on the techniques of fault diagnosis and condition assessment for oil-immersed transformer, for its great importance in the whole transmission and distribution (T&D)...
Dielectric response measurements are non-invasive and promising diagnostic methods that are being gradually used for assessing the insulation and aging condition of transformer oil-paper insulation system. It is known that moisture content in oil-impregnated insulation has significant effect on its dielectric response phenomena, and whereas at present there is few research about the characteristics...
Large power transformers play a vital role in power system. With the operation time going, there are more and more old transformers in China, which are still in service. However, based on the present time-based preventive test code for electric power equipment, it is difficult to conduct the decision-making. It is imperative to develop and carry out the condition monitoring and diagnosis (CMD) technologies...
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.