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.
Partial discharge (PD) ultra-high frequency (UHF) sensors are widely used for condition monitoring and defect location in gas insulated substation (GIS). There are many designs of UHF sensors which can detect electromagnetic waves that radiate from PD sources. The general types of UHF sensors are disc, monopole, probe, spiral, and conical types with each type of sensor having different characteristics...
In this paper, the influence of metal particle position at insulating spacer on partial discharge (PD) characteristics is studied by using the ultra high frequency (UHF) detection method in a 252kV GIS PD experimental platform. The PD inception voltage (PDIV), phase resolved partial discharge (PRPD), phase resolved pulse sequence (PRPS) and UHF signal waveform and its frequency spectrum are investigated...
This paper investigates the partial discharge characteristics of void defect in SF6 gas insulation under stepped alternating current voltage. Two kinds of partial discharge detection techniques are used, e.g. phase-resolved partial discharge pattern and current pulse waveform analysis. The partial discharge patterns and current pulse waveform are obtained by using a commercial partial discharge measurement...
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.