Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
Partial discharge (PD) measurement is one of the most important diagnostic methods to detect local faults in high voltage cable. This requires effective means of PD detection and recognition. The paper describes a method of PD recognition by image processing. Three kinds of cable-joint fault models are made for PD test with high voltage. Large amounts of test data are got for drawing scatter map or...
Partial discharge measurement is one of the most effective methods to find insulation defects and early failure of high voltage power equipments. The accuracy is significantly reduced by the interference in the partial discharge on-site detection or on-line monitoring, especially by the pulse interference. This paper studies the phase correlation of some types of typical partial discharge pulses and...
Whether the different heights of thunder cloud base will affect thunder strike on tip protrusion? In order to study the relations between heights of thunder cloud base and the space electric field around ground tip protrusion, the characteristics of atmospheric electric field under thunderstorm were analyzed by the use of atmospheric electric field data collected by atmospheric electric field monitor...
The domestic large-scale power blackouts occurs so frequently that more scholars concerned about the cascading outages of power system and the research of fragile domain. Based on the complex network theory and from the perspective of network efficiency, this paper analyzed the inherent fragile domain of power transmission network and had the risk assessment of lightning flashover of the weak field...
The continued dry weather usually caused the increasing risk of flashover of the transmission line insulators. But there is still a lack of effective means to deal with this specific risk, because the rule of pollutant accumulation is still not fairly known. This paper pointed that the global climate changes in the characteristics of abnormal in recent years. And based on that, the limitations of...
According to the statistics, the faults of power system caused by pollution flashover are the most familiar kind of transmission net faults. As a result, it's very important to avoid pollution flashover. If the amount of the dirt can be forecasted right, the just in time maintenance can be taken. As a result, the cost can be cut down greatly and the effect can be better than to clean up regularly...
This article analyses the fluctuation rule of insulation natural contaminant deposit of insulators and the shortages of the existing contaminant flashover theory. The relation of weather statistics and natural contaminant deposit and contaminant flashover are discussed.
All kinds of power grid data can be recorded into particular systems by text formatting only in traditional information system. But almost all of the data of power system have the geographic information. And these will make the staffs feel vapidity and fatigue. Base on google earth (GE) visualization platform for the power transmission line management, it can show the data, such as lines, towers,...
According to the statistics, the faults of power system caused by pollution flashover are the most familiar kind of transmission net faults. As a result, it's very important to avoid pollution flashover. If the amount of the dirt can be forecasted right, the just in time maintenance can be taken. As a result, the cost can be cut down greatly and the effect can be better than to clean up regularly...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.