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LiFePO4 battery with BMS circuits for a battery drill
Fiala, Václav ; Červinka, Dalibor (referee) ; Vorel, Pavel (advisor)
This bachelor thesis deals with problematics of lithium accumulators. There are listed properties and practical use of lithium accumulators. There is also the chapter of lithium-ion-iron-phosphate accumulators, which will be a practical part of this thesis Next part of the thesis solves a safety electrical circuit system for new lithium batteries which will be able to protect batteries against overcharging or undercharging. In the practical part of the thesis new LiFePO4 batteries for the cordless drill were designed. Also, the mentioned safety electrical circuit was designed and tested.
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Application of surge protection in LV networks
Brtnický, Pavel ; Šlezingr, Jan (referee) ; Bátora, Branislav (advisor)
The work include the issues about surge protection in low voltage networks. The first part give a theoretical analysis of the surge protection, where is described own creation and basic division. The second part give a inner and outer protections, where is characterized, what protections contain and methods, with which to design protection. In the third part is few words about computer softwares, which supports dimensioning and design protections. The second half of the work give a specific design of protections for fire station, first there are determinated risks for building without surge protection and after for building under surge protection, design of outer protection together with verification and design of inner protection.
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LiFePO4 battery with BMS circuits for a battery drill
Fiala, Václav ; Červinka, Dalibor (referee) ; Vorel, Pavel (advisor)
This bachelor thesis deals with problematics of lithium accumulators. There are listed properties and practical use of lithium accumulators. There is also the chapter of lithium-ion-iron-phosphate accumulators, which will be a practical part of this thesis Next part of the thesis solves a safety electrical circuit system for new lithium batteries which will be able to protect batteries against overcharging or undercharging. In the practical part of the thesis new LiFePO4 batteries for the cordless drill were designed. Also, the mentioned safety electrical circuit was designed and tested.
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Design of Lightning Protection of Family House
Kovář, Zdeněk ; Bátora, Branislav (referee) ; Toman, Petr (advisor)
Bachelor´s thesis decribes the fundamental theory that is necessary for the proper design of the house from the damaging effects of lightning. The aim is to give a brief and comprehensive look into the issues. The first part of this thesis describes the emergence of lightning, adverse effects on protected and unprotected building and risk analysis. The second part presents the different types of protections. The following third part describes a brief overview of the history of standards and regulations and overview of standards currently valid in the Czech Republic. The last part of the thesis deals with the creation of my own proposal for lightning protection for the chosen fictitious family house.
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Application of surge protection in LV networks
Brtnický, Pavel ; Šlezingr, Jan (referee) ; Bátora, Branislav (advisor)
The work include the issues about surge protection in low voltage networks. The first part give a theoretical analysis of the surge protection, where is described own creation and basic division. The second part give a inner and outer protections, where is characterized, what protections contain and methods, with which to design protection. In the third part is few words about computer softwares, which supports dimensioning and design protections. The second half of the work give a specific design of protections for fire station, first there are determinated risks for building without surge protection and after for building under surge protection, design of outer protection together with verification and design of inner protection.
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Design of power and data network of office building
Vančura, Jan ; Novotný, Jan (referee) ; Bátora, Branislav (advisor)
This thesis describes a design of a power and data network. The aim is to create a wiring project of an office building. The introduction of this paper describes, which requirements should have a project documentation and which software is used for designing. The third chapter deals with a description of parameters, which are used for lighting design. The fourth chapter describes power distribution, the types of power distribution (light, socket) and how they are being correctly designed. The fifth chapter analyses data distribution (EZS, EPS, TEL, …). There are designed surge protection and protection for the object in the last part of this thesis. The practical part focuses on creating a drawing documentation, which contains design of power and data network. All project documentation is further discussed in the technical report.
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Testing of Surge Arresters
Jeřábek, Lukáš ; Paar, Martin (referee) ; Krbal, Michal (advisor)
This bachelor's thesis is devoted to metal oxide surge arresters. After historical and theoretical introduction, which explains their principles and describes their characteristical properties, analysis of the standard IEC 60099-4 and testing according to the standard with focus on the type tests follows. This chapter is also amended with review of the standard's imperfections and with its most probable future development. The work concludes with a market survey, a review of the largest manufacturers and a comparison of their products.
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Application of overvoltage protection in LV networks
Knebl, Jan ; Novotný, Jan (referee) ; Bátora, Branislav (advisor)
This paper describes the design of surge protection for objects of civil construction. The aim of this paper is to acquaint the reader with the problems of this region, which is nowadays especially for houses neglected. The introductory part of the thesis is focused on the theoretical analysis of the problem and become familiar with the standards in force, without which a person moving in this field certainly can not do. In the first major section is a repartition surge in general terms. In the second chapter, a repartition of surge protection on the inside and outside and a description of the individual components of these protections. The third chapter is made complete design protection for the school building, the first step is an analysis of the risks to unprotected building, then the protected and ultimately design of internal and external surge protection. In the last chapter, a check is made of the risk analysis using DEHN Support.
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The design of the lightning protection for the house
Tesař, Luděk ; Bátora, Branislav (referee) ; Toman, Petr (advisor)
This work describes the design rules for the lightning protection of civic construction. The aim of this work is to provide a comprehensive view of the basic design rules for the lightning protection. The actual design is preceded by the detailed introduction to the relatively large problems in this sphere. The introductory part is focused on the approach of technical standards and legislative requirements. In the second chapter the thesis deals with lightning in general and lightning current and its parameters. The following chapter focuses on the effects of lightning current, indicating the damage caused by lightning strikes to the building or its surroundings. Then the thesis deals with analysis and risk management. The next chapter describes and explains the system of external and internal lightning protection. The last part is devoted to a specific design of the lightning protection for the chosen house.
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