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Life management of power oil transformer
Čechová, Karolína ; Froehling, Kenneth (referee) ; Sedláček, Pavel (advisor)
Pro pochopení významu procesu řízení životnosti výkonových olejových transformátorů, je nutné si nejdříve uvědomit jejich roli v elektrizační soustavě. Používají se především ke zvýšení a snížení napěťových úrovní v přenosové a distribuční soustavě dle aktuálních potřeb. Nespolehlivost výkonových olejových transformátorů může způsobit narušení stability dodávky elektrické energie, což představuje značné finanční a technické ztráty pro společnosti, které spravují tento typ zařízení. Z tohoto důvodu jsem se rozhodla napsat práci, která poskytuje přehled o procesu řízení životnosti, popsáním jeho ekonomických přínosů spolu s technickými diagnostikami, které napomáhají ke zjištění vznikajících poruch během provozu výkonových olejových transformátorů. Hlavním záměrem této práce je popsat a dokázat důležitost procesu řízení životnosti a využití diagnostických metod ke sledování parametrů transformátoru, které slouží jako prostředek ke zjištění možných poruch. Praktická část je zaměřena na navržení vhodných diagnostickým metod pro měření zvolených parametrů vybraného výkonového olejového transformátoru. Poté je provedena analýza zvolených parametrů a na základě jejích výsledků, je určen celkový stav vybraného výkonového olejového transformátoru.
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Replacement of electromechanical protections in TNS Vraňany
Čechová, Karolína ; Šiler, Michal (referee) ; Orságová, Jaroslava (advisor)
The reconstruction of the traction substation Vraňany currently involves only the replacement of power oil transformers. The main reason for their replacement is the fact that the power transformers have already exceeded their designed lifecycle. According to an investor requirement, only the transformer replacement is considered, however, a new system of protection is not included. Even though the fault-free operation of power transformers is closely related to ensuring a reliable and safe electric power supply. The main aim of the thesis is to design a new system of protection for power transformers to replace the present one. In the theoretical part of the thesis is described the current state of the traction substation along with a calculation of short circuit current ratios and their comparison with the new ones considering the installation of the new power transformers. In the next part are inspected instrument current transformers if they comply with the requirements for the new protection system. The practical part of the thesis focuses on the selection of protection relay, calculation of the primary setting for selected protection functions, and subsequently conducting their functional tests. In conclusion, the economic part of the planned investment is estimated.
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Nové možnosti a technologie ve výrobě piva
Čechová, Kateřina
The bachelor thesis is focused on new ways of using raw materials in the brewing in-dustry and new innovations. The theoretical part mentions basic raw materials for beer production, special types of malt, solid adjuncts from other raw materials, especially pseudocereals, liquid adjuncts, various methods of processing hops and new proce-dures or new equipment in beer production. Also the principle of production of Czech beer and European beer is compared. In the second part, the possibility of using star-chy surrogates was investigated. A recipe was created using buckwheat and then the sensory profile of the beer was created. From the obtained results, it was found that the addition of buckwheat negatively affected the sensory properties of the beer, which was reflected in the negative evaluation of both aroma and taste.
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Respite care for people with autism spectrum disorder
ČECHOVÁ, Kateřina
This bachelor thesis deals with the issue of respite care for people with disorders within the autism spectrum. The aim of this work is to emphasize the importance of this service, to raw near the content, the process, and the principles used to make the respite stay acceptable for clients with these diseases. This work is divided into theoretical and practical parts. The theory deals with characteristics, current approach, and terminology of autism spectrum disorders. Furthermore, it includes the etiology and triad of problematic areas as well as other symptomatic of ASD. It touches upon the diagnostics and classification of these diseases. It also deals with the families of children suffering from an autism spectrum disorder, the social services law, respite care and it includes general information about the organization of APLA Jižní Čechy, z.ú., where I conducted the survey research for the practical part of this work. The aim of the practical part of this bachelor thesis is to point out the importance and the principle of respite care targeting its contents, use, and the availability of lightning services for individuals with ASD. In order to achieve the goal, I chose qualitative research. To collect data, I created four versions of semistructured interviews - for clients with ASD, parents of the clients, personal assistants of respite care, and the service manager of APLA Jižní Čechy, z.ú. A part of the data collection was direct and involved observation during stays conducted on the premises of a Psychiatric hospital in Opařany. The survey research arises that respite care for people with autism spectrum disorder is very important, significant, and beneficial, nonetheless, it is not very widespread. The functionality of respite stays is built on an individual, equal, and empathic approach, communication, and cooperation among all participants.
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Educational computer game, its creation and use for practice of laboratory equipment terminology.
ČECHOVÁ, Kristýna
The bachelor's thesis is focused on the creation and use of a computer game for chemistry equipment teaching especially for students of the second grade of elementary and lower grades of multi-year grammar school. The aim of this adventure game is to motivate, activate and develop inter-subject relationships. The educational computer game is situated in the Dačice castle. Students get information not only about science, but also about the local history, monuments and culture.
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Replacement of electromechanical protections in TNS Vraňany
Čechová, Karolína ; Šiler, Michal (referee) ; Orságová, Jaroslava (advisor)
The reconstruction of the traction substation Vraňany currently involves only the replacement of power oil transformers. The main reason for their replacement is the fact that the power transformers have already exceeded their designed lifecycle. According to an investor requirement, only the transformer replacement is considered, however, a new system of protection is not included. Even though the fault-free operation of power transformers is closely related to ensuring a reliable and safe electric power supply. The main aim of the thesis is to design a new system of protection for power transformers to replace the present one. In the theoretical part of the thesis is described the current state of the traction substation along with a calculation of short circuit current ratios and their comparison with the new ones considering the installation of the new power transformers. In the next part are inspected instrument current transformers if they comply with the requirements for the new protection system. The practical part of the thesis focuses on the selection of protection relay, calculation of the primary setting for selected protection functions, and subsequently conducting their functional tests. In conclusion, the economic part of the planned investment is estimated.
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Satisfaction of I. ČLTK Praha competitive players with club services
Čechová, Karolína ; Janák, Vladimír (advisor) ; Ruda, Tomáš (referee)
Title: Satisfaction of I. ČLTK Praha competitive players with club services Objectives: The aim of this diploma thesis is evaluation of I. ČLTK competitive players satisfaction with club services. Then were proposed recommendations that should lead to services optimization and higher satisfaction of competitive players. Results will be presented to club management. Methods: In this research were used interviews with club management, coaches and players and then primary method of data collecting - written questionnaire. The final version of questionnaire was made after many editing, consultations and questionnaire testing especially for environment of this tennis club. Results: Results of research are presented in analytic part of this thesis in classification crosses, graphs and charts. Based on acquired data and interviews with players were proposed recommendations for I. CLTK Praha management, that should lead to quality improvement of provided services and also to higher satisfaction of I. CLTK Praha competitive players. Keywords: tennis, sport service, customer, quality, research
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Crisis intervention via electronic communication (on-line chat, on-line videochat)
Čechová, Kateřina ; Havránková, Olga (advisor) ; Lišková, Kateřina (referee)
This diploma disertation deals with the topic of on-line crisis intervention (KI further on in the text) in the Czech Republic (CR), specifically the service functioning of the online chat and videochat. This topic has not been paid attention to so far. The topic concerned is a rather new service area which provides service to the clients in a difficult situation on the internet and which has been working for past few years in a few KI centres (workplaces). No professional has tried to search it systematically or describe it in more detail yet. Considering the fact the internet is a widely used medium in our population nowadays, a high future potential of these services can be expected in the field of psychosociology. Therefore this diploma disertation aims to give a detailed description of the on-line chat and videochat functioning and necessary connections at KI centres (workplaces) in order to create a quidebook to the basics of these services for specialists and amateurs who are interested in this topic. Secondly, this diploma disertation is written to inform about the process of implementing the on-line chat into KI centres (workplaces) at three contemporary providers in CR, and to make the readers understand what the whole process is about. At the same time, this is to compile all the data for a...
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