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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 arresters in high voltage switchgear depending up parameters of connected load
Němec, Ondřej ; Bernard, Michal (referee) ; Lázničková, Ilona (advisor)
The purpose of this thesis is to introduce the reader about the problems of design of surge arresters. The first part of this thesis describes problems of surge. In the next part of this thesis are described test pulses needed to test surge arresters. The next issues of this thesis are medium voltage switchgears and surge arresters ABB and their test. In the next part ot this thesis are described type of network according earthing of transformers. The other point of this thesis are aplications of surge arresters, figures and calculation for networks, generators, transformers and motors. In the conclusion of this thesis is the appreciation of whole problems about surge arresters.
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Surge arresters, their construction and use in power system
Novický, Marek ; Pelikán, Luděk (referee) ; Orságová, Jaroslava (advisor)
The bachelor thesis deals with the means used to protect the equipment from the effects of overvoltage. The first of the thesis outlines basic information regarding the used overvoltage protections in the distribution system. The thesis also features the practical part outlining measurements carried out on the surge arrester. The last chapter deals with the dimensioning of the surge arrester in the high voltage distribution system.
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Fast Transient Phenomena in High Voltage
Vala, Martin ; Dohnal, Petr (referee) ; Krbal, Michal (advisor)
This work deals with research and description of the fast transients in high voltage technics. First part deals with division of fast transients and description of an impulse wave properties. Second part is focused on atmospheric overvoltage description and on direct and indirect lightning surge protection methods. Next, there are described the main characteristics and division of the surge protection devices in the work. In the next part, there are introduced some sort of high voltage generators, used for meassurement of impulse wave in a transmission line. In the last part there is stated an analysis of practical measurement of impulse weaves and surge arresters by using a Marx generator.
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Structure of Surge Arresters and Their Application in Power System
Strapko, Miroslav ; Novotný, Jan (referee) ; Orságová, Jaroslava (advisor)
This work deals with internal and external protection against surge phenomena occurring in the power system. Describes the atmospheric and the operating overvoltage. The main objective is to theoretically describe the issue of protection - surge arresters, which are used for different voltage levels from the view of parameters, use and construction. The last part shows the calculation of a sufficient gap between the devices of external protection against lightning - a safe isolating distance, the calculation of a protective distance of surge arresters and practical choice of overvoltage limiters for high-voltage transformer.
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Surge Arrester Installation in The Industrial Network
Korejčík, Michal ; Šlezingr, Jan (referee) ; Orságová, Jaroslava (advisor)
The work deals with issues of transient overvoltages. The first part of the work is focused on the overvoltages generating during switching actions. Overvoltage, which is arising during interrupting small inductive current, is practically tested by program ATP. Next part of this work is engaged in an area of atmospheric overvoltages. There are described typical characteristics and parameters of atmospheric overvoltages. The following chapter is devoted to high-voltage surge arresters - the elements, which avert danger of serious equipment damage. Spark-gap arresters as well as MO-arresters are described in this work. Their general characteristics and typical parameters are being introduced. Finally, the last part of the work explains the concept of protective distance and the equation, after whose is protective distance determined. The concept is verified by the help of program ATP, in which it is possible to simulate the phenomena arising from the transient overvoltages.
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Surge arresters, their construction and use in power system
Novický, Marek ; Pelikán, Luděk (referee) ; Orságová, Jaroslava (advisor)
The bachelor thesis deals with the means used to protect the equipment from the effects of overvoltage. The first of the thesis outlines basic information regarding the used overvoltage protections in the distribution system. The thesis also features the practical part outlining measurements carried out on the surge arrester. The last chapter deals with the dimensioning of the surge arrester in the high voltage distribution system.
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Surge Arrester Modelling Using Alternative
Transient Program
Bukvisova, Zuzana
This paper deals with surge arrester modelling in EMTP ATP software. Two commonly used models are presented – Pinceti and Fernandez-Diaz model. In this text, the procedure of model parameters calculation is also described. Both models are then tested using a current impulse of different wave shape and amplitude and the residual voltages obtained from the simulation are compared to the data from the surge arrester manufacturer.
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Fast Transient Phenomena in High Voltage
Vala, Martin ; Dohnal, Petr (referee) ; Krbal, Michal (advisor)
This work deals with research and description of the fast transients in high voltage technics. First part deals with division of fast transients and description of an impulse wave properties. Second part is focused on atmospheric overvoltage description and on direct and indirect lightning surge protection methods. Next, there are described the main characteristics and division of the surge protection devices in the work. In the next part, there are introduced some sort of high voltage generators, used for meassurement of impulse wave in a transmission line. In the last part there is stated an analysis of practical measurement of impulse weaves and surge arresters by using a Marx generator.
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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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