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The analysis of parallel operation variants of supply areas 110 kV Čebín and Sokolnice
Reiter, Martin ; Vaculík, Petr (referee) ; Toman, Petr (advisor)
The diploma thesis is focused on the analysis of parallel operation of Čebín and Sokolnice substations. Different variants of parallel operation are researched. A calculation of steady state by the iterative method is described in the theoretical part. The next part briefly mentions a short-circuit and dimensioning of conductors. The possibility of overloading of lines and transformers is discussed in the last chapter of the theoretical part. The current state of the situation is described in the practical part. Main goal of the practical part of the diploma thesis is to design a configuration capable to parallel operation. Also another configuration of supply of this area is designed. There must be no direct connection between Čebín and Sokolnice substations on 110kV level in this configuration. This configuration should eliminate a transit flow of power. Each configuration has to fulfill the requirements on the steady state and on short-circuit current capability. One of the last chapters is focused on the steps, that should by undertaken to prevent transit flow of power.
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Calculation of short circuit currents in electtrical network
Reiter, Martin ; Vaculík, Petr (referee) ; Toman, Petr (advisor)
First chapters of my bachelor´s thesis are focused on failures of networks, simple characteristics and description of their potential danger. Next chapters are thoroughly focused on the short-circuit, on the short-circuits graphs, on the circumstances which caused them and on their calculation. Next part is about the example, which is counted by the IEC 60909. First example is simple network. Second example is real distribution network 110kV. We are going to cogitate two involves for the real network and we are going to calculate symmetrical and asymmetrical short circuit current. There is summary of knowledge about the short-circuits and evaluation of the real distribution network at the end of my thesis.
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The acquisition and operating costs (efficiency) of different types of HV lines
Veselý, Tomáš ; Reiter, Martin (referee) ; Radil, Lukáš (advisor)
The master´s thesis deals with the evaluation of the efficiency of investment of various types of high voltage lines in terms of capital expenditures and operating expenses. The thesis describes the issue of the regulated environment in the field of electricity, the analysis of the pricing for ensuring the distribution of electricity and the analysis of the capital expenditures and operating expenses of the authorized returns of the distribution company operator. Subsequently, an analysis of the capital expenditures and operating expenses of the overhead and cable lines is processed. The particular components of the operating costs are determined either by annual energy loss per unit of length, an annual hourly labor demand, or an annual cost per unit of length. Another point is the evaluation of the investment efficiency for two different model lines, evaluation of capital expenditures and operating expenses, allowed investment returns and economic evaluation. The conclusion of this pursuit is the comparison of both types of lines, both with the view of capital expenditures and operating expenses, as well as with the view of economic appreciation.
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The acquisition and operating costs (efficiency) of different types of HV lines
Veselý, Tomáš ; Reiter, Martin (referee) ; Radil, Lukáš (advisor)
The master´s thesis deals with the evaluation of the efficiency of investment of various types of high voltage lines in terms of capital expenditures and operating expenses. The thesis describes the issue of the regulated environment in the field of electricity, the analysis of the pricing for ensuring the distribution of electricity and the analysis of the capital expenditures and operating expenses of the authorized returns of the distribution company operator. Subsequently, an analysis of the capital expenditures and operating expenses of the overhead and cable lines is processed. The particular components of the operating costs are determined either by annual energy loss per unit of length, an annual hourly labor demand, or an annual cost per unit of length. Another point is the evaluation of the investment efficiency for two different model lines, evaluation of capital expenditures and operating expenses, allowed investment returns and economic evaluation. The conclusion of this pursuit is the comparison of both types of lines, both with the view of capital expenditures and operating expenses, as well as with the view of economic appreciation.
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Calculation of short circuit currents in electtrical network
Reiter, Martin ; Vaculík, Petr (referee) ; Toman, Petr (advisor)
First chapters of my bachelor´s thesis are focused on failures of networks, simple characteristics and description of their potential danger. Next chapters are thoroughly focused on the short-circuit, on the short-circuits graphs, on the circumstances which caused them and on their calculation. Next part is about the example, which is counted by the IEC 60909. First example is simple network. Second example is real distribution network 110kV. We are going to cogitate two involves for the real network and we are going to calculate symmetrical and asymmetrical short circuit current. There is summary of knowledge about the short-circuits and evaluation of the real distribution network at the end of my thesis.
|
|
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The analysis of parallel operation variants of supply areas 110 kV Čebín and Sokolnice
Reiter, Martin ; Vaculík, Petr (referee) ; Toman, Petr (advisor)
The diploma thesis is focused on the analysis of parallel operation of Čebín and Sokolnice substations. Different variants of parallel operation are researched. A calculation of steady state by the iterative method is described in the theoretical part. The next part briefly mentions a short-circuit and dimensioning of conductors. The possibility of overloading of lines and transformers is discussed in the last chapter of the theoretical part. The current state of the situation is described in the practical part. Main goal of the practical part of the diploma thesis is to design a configuration capable to parallel operation. Also another configuration of supply of this area is designed. There must be no direct connection between Čebín and Sokolnice substations on 110kV level in this configuration. This configuration should eliminate a transit flow of power. Each configuration has to fulfill the requirements on the steady state and on short-circuit current capability. One of the last chapters is focused on the steps, that should by undertaken to prevent transit flow of power.
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