National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
Monitoring of temperature influence on properties of lead-acid accumulators
Musil, Petr ; Křivík, Petr (referee) ; Bača, Petr (advisor)
This thesis deals with lead-acid battery, its parameters and temperature behaviour of this electro-chemical source of power. In the theory section, types of batteries are presented, followed by their primary parameters and electro-chemical reactions, which take part in battery cells. This section also contains information about charging stages, detailed description of each battery part, used materials, construction of the battery and degradation processes caused by battery operation. The practictal section of this thesis offers a measurement scheme for automated measuring workstation. Furthermore, the practical section presents results of measurements on parameters of chosen lead-acid battery types, it also contains long-term deep battery cycling and measurements under elevated temperatures. Detailed comparison of measurements results and datasheet values is included. Conclusion sums up parameters of chosen lead-acid battery types and their feasibility for further usage in power backuping.
A Suggestion to Ensure Safety of DC in Power Infrastructure and its Impact on Economics of an Enterprise
Trůčka, Martin ; Zíka, Ing Josef (referee) ; Dydowicz, Petr (advisor)
The aim of this thesis is a description of a proposal to ensure safety of DC in power infrastructure and its impact on economics of an enterprise. The first part is focused on the analysis of the whole situation. The work also contains other possibilities of solution with respect to theoretical resources. The attention is also drawn to a particular procedure to minimize the financial loss of the company caused by a power failure and to a plan for providing maximum protection against this power failure.
Monitoring of temperature influence on properties of lead-acid accumulators
Musil, Petr ; Křivík, Petr (referee) ; Bača, Petr (advisor)
This thesis deals with lead-acid battery, its parameters and temperature behaviour of this electro-chemical source of power. In the theory section, types of batteries are presented, followed by their primary parameters and electro-chemical reactions, which take part in battery cells. This section also contains information about charging stages, detailed description of each battery part, used materials, construction of the battery and degradation processes caused by battery operation. The practictal section of this thesis offers a measurement scheme for automated measuring workstation. Furthermore, the practical section presents results of measurements on parameters of chosen lead-acid battery types, it also contains long-term deep battery cycling and measurements under elevated temperatures. Detailed comparison of measurements results and datasheet values is included. Conclusion sums up parameters of chosen lead-acid battery types and their feasibility for further usage in power backuping.
A Suggestion to Ensure Safety of DC in Power Infrastructure and its Impact on Economics of an Enterprise
Trůčka, Martin ; Zíka, Ing Josef (referee) ; Dydowicz, Petr (advisor)
The aim of this thesis is a description of a proposal to ensure safety of DC in power infrastructure and its impact on economics of an enterprise. The first part is focused on the analysis of the whole situation. The work also contains other possibilities of solution with respect to theoretical resources. The attention is also drawn to a particular procedure to minimize the financial loss of the company caused by a power failure and to a plan for providing maximum protection against this power failure.

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