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 deals with a comparison of an optimal solution of equipping a MV distribution network when different financial equivalents of supply interruption are taken into account. The comparison elicits from the studies performed for real feeders of 22kV overhead lines and is carried out for an optimization task whose objective is allocation of telecontrolled switching elements (telecontrolled section...
The restoration of electricity supply to customers after a failure in the distribution network often represents a complex process consisting of many steps (manipulation) to be undertaken in the network. As a result of this various customers on the same feeder affected by the failure perceive a different number of differently long supply interruptions. This paper deals with the influence of the methodology...
The paper shows some results of analyses dealing with the evaluation of the successive restoration of electricity supply to customers in distribution networks. These results are based on real operational data from the overhead network of one distribution company. Data were available from the control system at the level of individual distribution transformer stations for the period of five years. Speaking...
The paper considers the problems of group and cumulative group distribution of the frequency of occurrence of residual node voltages of a specific size that occur in specific parts of the power system in the Czech Republic in case of a three-phase short circuit at the nodes. The results are shown in the corresponding bar graphs, and evaluated and compared each with other at the end of the paper. Furthermore,...
The paper presents the results of the analysis of the estimate of the cost of penalty payments for breaching the guaranteed standard of the electricity supply continuity. A real municipal MV cable distribution network was analysed. The estimate of the cost of penalty payments was obtained by simulating supply interruptions in the network by using a modified Monte Carlo method. The analysis is performed...
A PC-controlled sequential injection analysis (SIA) system equipped with a spectrophotometric diode-array detector is used for rapid monitoring and evaluation of antioxidation/radical scavenging activity of biological samples. The automated method is based on the known reaction of stable 2,2′-diphenyl-1-picrylhydrazyl radical (DPPH) with antioxidants in organic or aqueous-organic media resulting in...
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.