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.
In GIS substations, operations of disconnectors may cause very fast transient overvoltage (VFTO) with high amplitude and steep wave front. Considering the narrower insulation margin of UHV GIS equipments and larger absolute magnitude of VFTO in UHV GIS systems, VFTO in UHV GIS systems could cause larger damage than those in EHV and lower ones. Therefore study on VFTO in UHV GIS systems is of great...
Lightning stroke is the key problem for safe operation of UHV transmission line. Because of the large scale of the tower and the high operation AC voltage, the shielding design of tower became one of the most important aspects of the UHV transmission line design. This paper was based on the typical towers of China 1000 kV AC transmission line: waist-type single-circuit tower, cup-shape single-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.