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Testing of distance protection
Makuta, Peter ; Novotný, Jan (referee) ; Wasserbauer, Vojtěch (advisor)
This work deals with basic fault conditions in the power system. It deals with electric protections and their requirements for service in the second section. Distance protection SIPROTEC 4 7SA610, its technical parameters and main functions are introduced in this work. Testing unit OMICRON 256plus is described in the topic dealing with testing. Manuals for adjusting the distance protection SIPROTEC 4 7SA610 and OMICRON 256plus is also included in this work. Testing of distance protection SIPROTEC 4 7SA610, analysis and evaluation of the measured values are stated in the summary.
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Testing of Synchro-check Function of Feeder Protection Terminal
Cekl, Jakub ; Wasserbauer, Vojtěch (referee) ; Orságová, Jaroslava (advisor)
This thesis is oriented on testing of automatic synchronizing with the help of the machine terminal REM 545 by ABB and its synchro-check function by CMC 256+ tester by OMICRON, where network and alternator parameters are simulated. Basic principles of phasing and phasing conditions are briefly mentioned. Creation of configuration, tester preparing and test execution are described in following chapters. Test of real use is suggested at the end.
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Electric boiler connection in heat plant for providing ancillary services
Ditrych, Marek ; Příhoda, Martin (referee) ; Wasserbauer, Vojtěch (advisor)
The bachelor thesis deals with using the electric boiler for extension ancillary services in heating plant. The system and support services are described in the thesis, because the ancillary services regulate an energy deflection. The system and ancillary services are described in the thesis. Thanks to these services an energy deflection is regulated. The thesis describes different types of electric boilers and there functions. In the thesis is shown the possible solution of using an electric boiler in heating plant Opatovice. The cable conduction is designed for a power of electric boiler. For this reason, there is calculated the equivalent warming short-circuit current close to the electric boiler.
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Calculation of the profile busbar conductors in distribution equipment
Veselý, Tomáš ; Wasserbauer, Vojtěch (referee) ; Novotný, Jan (advisor)
Proportioning of busbar system for thermal and dynamic effects of short circuit current in terms of safety and economic efficiency is very important. Bachelor thesis is focused on inspection of these effects on busbars. Theoretical analysis deals with the calculation of characteristic values of short circuit current. The study also processed the principle dimensioning of the profile wires for busbars. The main part consists of designing the effects of short circuit current. In the practical part of the work was created calculation program in MS Excel, which deals with the design of the bus, resistant to the effects of short circuit current. The program also allows you to check the busbar-known dimension to the thermal and dynamic effects.
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Substation model with double busbar system
Kopáček, Petr ; Jurák, Viktor (referee) ; Wasserbauer, Vojtěch (advisor)
The goal of my Bachelor´s Thesis is to rebuild a single busbar medium voltage Switchgear substation model with two sections where one Switchgear cubicle represents the incoming breaker of the busbar section. Furtherly, the goal is to configure the model, test and put it into the operation for laboratory exercise. The base problems for model rebuild are described in the theoretical part which is followed by the description of rebuild for this particular case and solution of control and instruments interlocking configuration using CAP505 program. The updated drawings after the rebuild completion are attached. The conclusion of my Bachelor Thesis summarizes the problems identified during testing and their resolution. Few laboratory exercises are also included in the Thesis.
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Power Plant Units Cooperation - Optimization of Operating Parameters
Hromádka, Martin ; Wasserbauer, Vojtěch (referee) ; Mastný, Petr (advisor)
This bachelor’s thesis aims to describe the principle of operation of thermal power plant as well as to describe the issues related to increasing the efficiency of production units. Another task was to create a mathematical model of cooperation of power plant units. The thesis also deals with the fundamental issues of power distribution as well as deals with the functioning of the electricity system in Czech republic. In this thesis there are also calculated two sample examples of two parallel cooperated units. In the first example, the optimized electric power is not outside of the control range but in the second, the optimized electric power is outside of the range. So there are two types of the calculations. As a part of the thesis there was made a mathematical model. The mathematical model based on the specified demand load in the network optimizes the eclectic power of three cooperating parallel units. This should lead to the fact that the operating costs will be minimized. In the model there is also a complete calculation of specific consumption and thermal efficiency. The reader of the thesis is able to do these calculations in five possible options.
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Partial discharge measurement of middle and high voltage cables
Pelikán, Luděk ; Wasserbauer, Vojtěch (referee) ; Krbal, Michal (advisor)
The main topic of this work is the analysis of the measurement of partial discharge measurements on high voltage cables. The thesis also deals with other measurements, including the measurement of the loss factor and the voltage retention and breakdown test. Part of the text describes the issue of partial discharge, its measurement by galvanic method and methods of elimination of disturbing influences that affect this method in terms of sensitivity and accuracy of the measured values. Thesis also describes the construction of the cables, their marking and the tests carried out on them. There is also a description of the cable terminals used for measuring, especially water terminals, which are designed for high voltages and which are carried out in the practical part of the thesis. The next part deals with problems prior to the commissioning of water terminals and their preparation for certain tests, including description and evaluation of the results of the measurements.
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Protection functions of the REX 640 terminal in case of earth faults
Siegel, Josef ; Bukvišová, Zuzana (referee) ; Wasserbauer, Vojtěch (advisor)
This bachelor thesis deals with the protection, implementation and evaluation of test for fault condition indicators. Thesis focus on earth fault indicators. These protections must be able to evaluate earth faults in compensated, compensated with auxiliary resistor, unearthed and high-resistance earthed networks. Furthermore, part of the thesis is research of methods of earth fault detection, including their principles and function description.
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Design of reconstruction the part of the LV distribution network including make the creation of Detail Design Documentation
Kubeša, Radek ; Wasserbauer, Vojtěch (referee) ; Bátora, Branislav (advisor)
This master’s thesis deals with problems associated with the design of LV distribution networks. In the theoretical part there are described, legislative requirements for the designer of distribution networks, overwiev of standards in which the designer should have oriented and programs used in practice to create design documentation. In the next part there are given requirements for the detail design documentation. Practical part of master’s thesis is devoted to design of reconstruction of distribution network in the given part of village. Appraisal of existing a newly design distribution network was done by calculating of stady state in the BIZON program. In the last part there is listed design documentation for construction in range for the smooth implementation of the project.
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