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Operation of a distribution system with resistance welders
Zelený, Miroslav ; Šlezingr, Jan (referee) ; Drápela, Jiří (advisor)
This Diploma thesis deals with assessment of the influence of two fundamental types of resistance welders operation on chosen power quality parameters at the point of common coupling (PCC) of the power network. The assessed parameters of power quality are the total harmonic distortion of the supply voltage, asymmetry of the supply voltage and the level of short term flicker at the point of common coupling. The assessment is based on the comparison of the results of computer simulations done in PSCad 4.2.0 with the requirements of technical standards. The outcome of this thesis is the determination of allowable limits for physical and operation parameters for the general arrangement of a power distribution network and a resistance welder that should guarantee the power quality compliance.
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Financial analysis of Stavby silnic a železnic, a.s.
Vágner, Jan ; Boukal, Petr (advisor) ; Zelený, Miroslav (referee)
Diploma work is engaged in financial analysis of Stavby silnic a železnic, a.s. company. The aim is to pass judgment on company's present financial situation and its progress from year 2001. It is focused on important facts concerning financial health. It warns of possible threats and try to define some recommendations to achieve stability and prosperity. It utilizes theoretical knowledge of financial analysis like horizontal and vertical analysis of financial statements, rules of financing, ratio indicators, pyramidal system of indicators, working capital analysis, basic economic inequality, EVA method and bankrupt models. Company is also compared with a number of transport building companies.
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