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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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Design of overvoltage protections according to CSN EN 62 305
Pochop, Zbyněk ; Paar, Martin (referee) ; Bátora, Branislav (advisor)
This Bachelor's thesis deals with the procedure in designing overvoltage protections for an ordinary house according to a new set of standards CSN EN 62305. The work consists of three main parts. The first part deals with the method of risk management according to standard CSN EN 62305-2. Besides a theoretical introduction is made a risk analysis also numerically. Result of risk analysis has implications for the way forward surge protection design for the entire building. The second part deals with the external surge protection. In the second part of the text are suggestions down lead systems and primarily air terminals. Check over is subsequently verified by the methods of the protective angle method and the rolling ball. The study also addressed the issue of TV antennae on the roof near the air-termination network. The third part of this thesis deals with internal overvoltage protection, which mainly concerns the design and location of surge arresters and lightning arrester.
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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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Design of overvoltage protection for the object with explosive risk
Polášek, Roman ; Novotný, Jan (referee) ; Bátora, Branislav (advisor)
This master´s thesis deals with the designing process of surge protection for the object potentially explosive atmospheres and according to a set of standards ČEN EN 62305 and ČSN EN 60079. This work consists of four main parts. The first part deals with the theory of lightning and surges. Subsequently, in the second part is devoted to the theory of protection against these phenomena and proposals for external and internal lightning protection and surge. This chapter also deals with more demands on electrical installations in hazardous areas. The third part deals with the analysis of the risks to the subject paint and according to ČSN EN 62305-2 ed.2 and at the conclusion of the study is a proposal for external lightning protection and internal surge protection.
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Planning and design electrical protection in the house wiring
Chromík, Aleš ; Mastný, Petr (referee) ; Bátora, Branislav (advisor)
The work includes familiarization with the problems of protection from injuries by electric current that includes individual protections and their use. In the work is also included effect of electric current on humans. Another point is the familiarization of protection against external and internal atmospheric surge in house wiring. Project risk analysis, against injuries to living beings by lightning strike, is calculated for the protection of atmospheric surge. The main point of this work deals with the procedure of design process of house wiring protections for given object. The project includes technical drawing, which contains how to design power and data distribution systems and switchgears, as well as the drafting of lightning system which accuracy is verified by the methods of protective angle and the ball rolling. Design and location of the right types of surge protection arresters is selected for a given objects. All project documentation is discussed in the technical report, which refers to existing standards.
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Design of the implementation project for house's electrical installation
Pitron, Jiří ; Drápela, Jiří (referee) ; Mastný, Petr (advisor)
The thesis deals with the design and process implementation project for house's electrical installation. The first section contains a statement of the necessary legislation, which is intended for the proper construction of the project. The following are practical examples on how to connect the object to the distribution network, basic furnishing and electrical wiring protection, design of electrical distribution lines and zone location. Continuing this part of the object is to provide external and internal lightning protection. This chapter introduces the reader how to design a receiver system, whose ground leads. It also describes the use of internal lightning protection, surge protection devices. The second part of this thesis examines the use and installation characteristics of the active elements, which may afford some extras to man. In the third practical part author compiled project of realization of wiring a house, which includes drawing circuits, devices and equipment into the house floor plan, electrometer housing scheme and also includes design drawing external lightning protection and its deployment. There are also necessary technical documentation with the economic evaluation of the created object.
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New requirements of photovoltaic system for family houses
Mička, Marek ; Valenta, Jiří (referee) ; Dostál, Lukáš (advisor)
The bachelor's thesis deals with the requirements for a photovoltaic system in a family house. Its aim is to summarize all important information when selecting a photovoltaic system. The first part of the semester project summarizes all used topologies of photovoltaic systems in family houses. The second part is devoted to the conditions for safe operation, which include normative requirements, design of lightning protection and connection to the distribution system. And the last third part deals with the process of enabling the parallel connection of the PV power plant to the distribution grid, development of project documentation and installation of PV technology.
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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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