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.
Paralleling current transformers (CTs) is a common practice in differential or line protection applications where the number of CTs exceeds the number of relay current inputs. This is especially true of line current differential applications applied to breaker-and-a-half and ring-bus configurations. This paper discusses complications that can arise from this practice and highlights relay design improvements...
Although shield wires are typically grounded through a finite tower footing resistance, positive- and zero-sequence line impedances are calculated assuming no tower footing resistance. Since impedance-based fault location algorithms require sequence line impedances to compute the distance to fault, this paper evaluates the impact of the grounded shield wire assumption on the accuracy of fault locating...
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.