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Voltage tests under wet condition
Vondrák, Michal ; Štěpánek, Jaroslav (referee) ; Krbal, Michal (advisor)
The main objective of presented thesis is to design a shower system in order to extend voltage tests by voltage wet testing. The introduction focuses on important aspects related to voltage wet testing. Such aspects originates mainly from Czech but also foreign standards. Following part of the thesis deals with specific wet testing design proposals, which fulfil the standards requirements. The final part of presented thesis is focused on partial experiments. Namely the analysis of rain water properties, behavior of rain drops exiting the nozzle with varying flow and nozzle angle, wet test on insulator in dry and wet conditions.
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Vliv pastevních pozemků na parametry vody v malém vodním toku
KUBELOVÁ, Barbora
The diploma thesis deals with the comparison of selected surface water properties in a small watercourse in the "Pasecký potok" and "Váčkový potok" river basins in 2018 and 2019. The evaluation was performed in three currency profiles- the upper specific profile of "Váčkový potok", the lower specific profile of "Váčkový potok" and "Pasecký potok". The differences between these streams are in the management of the landscape and in the use of the landscape by man, which means a significant effect on the chemistry of water in surface water. The monitored hydrochemical indi-cators in the profiles were electrolytic conductivity, pH, insolubles, nitrates, phosphates, total organic carbon, inorganic carbon, total carbon and total nitrogen. Limit values of Government Regulation No. 401/2015 Sb. were not exceeded in the upper profile of "Váčkový potok" and in the profile of "Pasecký potok". The values of total nitrogen was exceeded in the lower specific profile of "Váčkový potok".The basin of the lower profile of "Váčkový potok" is located near arable land and in this profile other values were higher- electrolytic conductivity, pH, nitrates, total organic carbon, inorganic carbon and total carbon were proved. Human intervention in the upper profile of "Váčkový potok" and in "Pasecký potok" is small. We can consider the state of ecosystems here to be the most similar to a natural landscape.
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Gliding Arc and its applications
KOBRLE, Lukáš
The bachelor thesis concerns itself with plasma discharge Glidarc influence on choosen water parameters, like density, surface tension, dynamic viscosity, heat capacity and pH. The theoretical part is a brief introduction to plasma and gas-discharge matters. The practical part contains measurment outcome and corresponding calculations. The conclusion includes a summary and evaluation of the whole research.
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Voltage tests under wet condition
Vondrák, Michal ; Štěpánek, Jaroslav (referee) ; Krbal, Michal (advisor)
The main objective of presented thesis is to design a shower system in order to extend voltage tests by voltage wet testing. The introduction focuses on important aspects related to voltage wet testing. Such aspects originates mainly from Czech but also foreign standards. Following part of the thesis deals with specific wet testing design proposals, which fulfil the standards requirements. The final part of presented thesis is focused on partial experiments. Namely the analysis of rain water properties, behavior of rain drops exiting the nozzle with varying flow and nozzle angle, wet test on insulator in dry and wet conditions.
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