This work is focused on the measurement of partial discharges in gas insulated conductors manufactured by ABB. The theoretical part contains the definition of partial discharges, their analysis and detection methods. It also deals with the general description of gas-insulated substations and then with the concrete components manufactured at ABB in the Brno-Slatina production plant. The practical part describes the course of measurement, definition of the main problems and their explanation. The output from the practical part is a measurement library with given characteristics, which show the location and character of the problem in detecting partial discharge in a given encapsulated assembly.

The diploma thesis deals with the optimization of powder-coating process resulting in a reduction of labor intensity during finishing components in gas insulated switchgear (GIS). The thesis is divided into five main chapters that describe characteristic and function of gas insulated switchgear (GIS), the theory of powder-coating, including mechanical and chemical pretreatment of surfaces, the studies of contemporary quality of coating process in the company ABB s.r.o. with classification of components of GIS according to their function. This chapter also contains detailed analysis of section of coating process during the processing of selected parts (housing and conductor). The thesis also contains detailed studies of masking of surfaces at coating parts, specifies the most common defects and determines the main cause presented in a well-arranged chart, design, description and realization of optimization solutions with selection and evaluation of final version. An economic comparison of contemporary condition of powder-coating process with designed optimization solution is stated at the end of the thesis.

The thesis is concerned with the stability of the energy market with oil and gas in the European Union. It first characterizes the development of energy policy. The next part specifies two essential types of primary energy -- petroleum and natural gas. This chapter deals with the measurement, mining and also describes the proved world reserves that influence the delivery of these energies into the European Union. The following chapter deals with the stability of the internal market for oil and natural gas. It describes the stability of demand for this kind of energy, the stability of supply and the stability of prices. The final section outlines some of the ways, in which the European Union seeks to enhance the stability. One of the ways is maintaining and deepening relationships with external suppliers and other major energy consumers. Another way to encourage energy stability is to increase the efficiency of energy use, which leads among others to a reduction of the European dependence on supplies and it also lower resource depletion.

The thesis evaluates and quantifies the residual shape risk on the Czech nat- ural gas market. The risk stems from insufficient liquidity of forward mar- ket, when energy supplier has to hedge his short shaped sales by standard baseload products available at wholesale market. Hence, energy supplier is always left with residual position, which has to be closed at spot market. We model the residual shape risk as a difference between spot and forward prices weighted by residual position, which is derived from the shape of innogy En- ergie, s.r.o. household portfolio. In order to do so we develop model for a spot price dynamics based on the daily index OTE. We price forward contracts as expected spot price at delivery. The spot price dynamics is modelled as a mean-reverting Ornstein-Uhlenbeck process, while assuming two different driving stochastic processes for innovations. First, we model them as a mixed jump diffusion process. Second, we estimate control model assuming innova- tions to come from the normal inverse Gaussian distribution. The residual shape risk is then evaluated by Monte Carlo simulation of spot price paths, which we use for hedging the portfolio shape. Five percent Value-at-Risk and the Expected Shortfall measures for the jump mixed diffusion process yield costs of 0.013 and 0.016 EUR/MWh,...

This thesis focuses on the process of liberalization of the natural gas market in Europe. The aim of this thesis is to present energy policy and its development in relation to the liberalization of the gas industry in the EU. Moreover another aim of this thesis is to bring a critical look at the process of liberalization of natural gas market in practice and assess the current stage of the liberalization process in EU. The gas industry represents one of the parts of energy industry and from this reason the indroduction of this thesis is devoted to the development of energy and energy policy from the 2nd world war to the present. The next chapter of this thesis is focuses on the importance and the position of natural gas among the other energy sources. The next chapter describes the process of the liberalization in the European Union, which is related to the adoption and implementation of the European energy directives and regulations, also known as the energy packages, in to the national legislation. In the last chapter are analyzed some of the factors of the liberalization of the gas market in the Czech Republic

This thesis studies the impact of shale gas on commodity and stock markets in the U.S. by employing wavelet approach and conducting a time-frequency analysis of dynamic correlations between natural gas and important representatives of commodity markets: crude oil, coal, corn, wheat, and several indices. It covers the period from 2006 to 2015 and is performed on daily data. Our thesis enlarges existing literature on comovement between natural gas with other energy commodities and stocks using wavelet coherence - a methodology which allows analyzing comovement among assets not only from a time series perspective but also over different frequencies. Financialization of natural gas and its involvement in investment portfolios under changing conditions on the U.S. gas market provide space for examination of gas proper correlation estimates in respect to other financial assets. Our results reveal natural gas comovement behaviour with examined commodities during the Financial Crisis. They show gradual decoupling between gas and crude oil prices in time. To the best of our knowledge we are the first to address natural gas using wavelet coherence in connection to agricultural commodities corn and wheat. These commodities together with natural gas are primary sources for bioethanol production being used in...

This diploma thesis deals with the technology of noncontact hot plate welding and hot gas welding and with the optimizing of welding parameters of the chosen thermoplastics, especially of POM and PPA. The individual chapters in the theoretical part focus on following topics: technology of noncontact hot plate welding, technology of noncontact hot gas welding, description of the test welding machines and tools, main process parameters and evaluation of the advantages and disadvantages of each technology. In the practical part the welding parameters are optimized by the Design of Experiment systematic, the short-term capability machine and the microtome analysis are evaluated. In the end there are the results of the welding parameters optimization and comparison of noncontact welding technologies.

This Master's thesis analysed integration process of national energy markets through non- legislative and legislative EU documents. The aim was to study integration of national energy markets and aspects that had influence on the integration process through interpretative content analysis. Additionally, the definition of internal energy market was augmented. The internal energy market requires not only competitiveness, market-based approach, customer orientation and flexibility, but it is also necessary to ensure security of supplies, diversification of suppliers, sustainability, and transparency. Four aspects were analysed. It was partially proven, that several initiatives and proposals made by the European Commission were implemented by the member states in binding EU legislation (energy packages) in the period from 2000 to 2019. The initiatives presented by the European Commission were far more ambitious. However, as it was pointed out several times in Commission's publications that progress was rather slow in transposition of EU legislation into national laws by the member states which significantly prolonged integration process. Main problems were deregulation of gas prices for end users, ownership unbundling and independence of national regulatory authorities. Next, geopolitics within the EU...

This master thesis is focused on elaboration of project documentation for constructing autosalon in Kopřivnice. Project and appendix are processed by current applicable laws, regulations and standarts. Designed object is situated on plat #419/2 and partly on plat #419/27. Both plats are parts of cadastral area of Kopřivnice. There are all needed engineering networks nearby. Object is divided on three functional parts, which are operationally and constructionally connected. First part is exhibition and representative hall, with capacity of 11 exhibited vehicles. Second part is formed by administrative facilities for staff including sanitary facilities for both staff and visitors. Third part is service for personal and light commercial vehicles with three working stations. Construction is designed partially reinforced concrete columnar structural system and partially of brick longitudinal structural system. The biggest plan dimension of building is 34.3x35.15m. The cladding is designed of sandwich blocks LIVETHERM tl.400mm. Roof of building accross the surface is flat roof with several height levels. Establishment of the object is a combination of footings and foundation belts. Cladding of exhibition hall is more than 50% glazed. Parts of service and autosalon are designed as sigle storey objects, while administrative part is designed as a two.