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.
This paper considers the features extraction of Gas Insulated metal-enclosed switchgear(GIS) which suffer from partial discharge (PD) by floating electrode defect. The 220kV GIS bus bar cavity is taken as an object to design physical model of floating electrode defect. The experiment PD data are obtained from a 220 kV GIS equipment using Ultra-high frequency(UHF) partial discharge measurement. The...
In this paper, a 220kV GIS bus bar model is established to study partial discharge characteristics of floating electrode defect in Gas Insulated Switchgear (GIS), which is one of the common sources of PD. The 220kV GIS bus bar cavity is taken as an object to design physical model of floating electrode defect. The PD development process is researched by applying gradually increased voltage. The UHF...
This paper presents an experiment to study the partial discharge (PD) characteristics and development process of the physical models of general insulation defects in gas-insulated switchgear (GIS). Four types of typical artificial insulation defects are designed to imitate the insulation faults in an actual GIS. The experiment PD data are obtained from a 220-kV GIS equipment using ultrahigh-frequency...
This paper investigates the propagation characteristics of partial discharge in Gas Insulated Substation (GIS). It is simulated based on the method of Finite Difference Time Domain (FDTD). Firstly the model for detecting PD signals in T-branch GIS is built according the real 220kV GIS experimental setup, and then we study the influence factors respectively. Also this paper makes experimental investigations...
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.