National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
The electric drive with current peak limiting
Keller, Karel ; Vrba, Jaromír (referee) ; Koláčný, Josef (advisor)
My thesis is focused on realization of three inrush current limitors samples. This limiters will be used in ABB´s metal-clad, air-insulated switchgears for medium voltage distribution. On the basis of the results there is chosen the sample with optimal properties suitable for practice in the conclusion.
The issue of ashwaiyat in contemporary Egypt. Beginning, present situation and possibilities of solution.
Kučerová, Květa ; Ondráš, František (advisor) ; Keller, Karel (referee)
The ashwaiyat or informal areas in contemporary Egypt are vast residential areas built during the last several decades without any means of regulation or following principles of physical planning. They gradually came to existence because of the continuing migration from the countryside to cities and by natural population growth. The newcomers, who were not able to find adequate housing in accordance with their economic possibilities, started to build their houses on private agricultural land which was not intended for building purposes, or on state desert land, to which they had no legal tenure rights. Any infrastructure in such areas was constructed relying solely on self-help. Despite the fact that the ashwaiyat phenomenon has grown substantially, it has not been addressed nor treated officialy until recently. Firstly, the formation and growth of the informal settlements with a focus on Egypt's capital, Cairo, is discussed. Further analyses are made regarding the hardships and poverty endured by its inhabitants using tangible evidence to illustrate specifics and everyday reality in some of Egypt's ashwaiyat. It shows that the informal areas are not homogenous and that they represent various living conditions. The purpose of this paper, aside from summarizing the development, is to potentially...
The electric drive with current peak limiting
Keller, Karel ; Vrba, Jaromír (referee) ; Koláčný, Josef (advisor)
My thesis is focused on realization of three inrush current limitors samples. This limiters will be used in ABB´s metal-clad, air-insulated switchgears for medium voltage distribution. On the basis of the results there is chosen the sample with optimal properties suitable for practice in the conclusion.

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