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.
Temporary protective grounding serves a critical safety function when working on electrical power systems. Although many field service personnel are well-familiar with the requirements of using temporary protective grounds, many others have only a partial understanding of important aspects of it. This paper reviews the more important aspects of the application of temporary protective grounds, including...
We clarified the influence of grounding resistance on the effectiveness of lightning protection for power distribution lines with a ground wire (GW) and surge arresters (SAs) by EMTP analysis and experiments. The results indicated that power distribution lines with both a GW and SAs can increase the lightning protection level against direct hits without lowering the grounding resistance compared with...
Modeling NEV issues requires the most detailed circuit models for distribution system analysis except for, perhaps, lightning surge protection analysis. A proposed line model benchmark is solved and results reported. Modeling NEV will become an increasingly important problem. Based on the proliferation of harmonic producing loads in residential environments, the amount of triplen harmonics will tend...
To benefit the fault detection and identification of conductor corrosion fault, a hierarchical simplified model of grounding grids is put forward. Minimum unit dividing is the key process of hierarchical simplification, which can be realized by the proposed algorithm. Branches are classified into clear branch and uncertain branch. A Monte-Carlo based testability evaluation approach is suggested. The...
The scope of this recommended practice is to characterize the surge environment at locations on AC power circuits described in IEEE Std C62.41.1/sup TM/2002 by means of standardized waveforms and other stress parameters. The surges considered in this recommended practice do not exceed one half-cycle of the normal mains waveform (fundamental frequency) in duration. They can be periodic or random events...
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.