National Repository of Grey Literature 12 records found  previous11 - 12  jump to record: Search took 0.00 seconds. 
Selection and Application of Surge Arresters for Middle-Voltage Air-Insulated Switchgears
Němec, Ondřej ; Bernard, Michal (referee) ; Drápela, Jiří (advisor)
The purpose of this thesis is to introduce readers with design of a surge arresters in four different categories. In the first part of this thesis is described theory of overvoltage, surge arresters and testing. The second part of this thesis is focused on design of surge arresters to protect from overvoltage due switching capacitive loads. The thesis continued with design of surge arresters in medium voltage network. The next part is design of surge arresters to protect from overvoltage due switching inductive loads. The next point is protective distance of surge arresters in different lighting overvoltages. In the conclusion of this thesis is the appreciation of whole problems about surge arresters.
Optimization of partial discharges UG500R and UG550 for 17.5 kV voltage level
Bajánek, Tomáš ; Bernard, Michal (referee) ; Orságová, Jaroslava (advisor)
Master’s thesis deals with the optimization of partial discharges in switchgears ABB UniGear 500R and ABB UniGear 550 for 17,5 kV voltage level. It contains a description of the measurement method of partial discharges in metal enclosed medium voltage switchgears, analysis of the places where it may lead to formation of partial discharges and project of optimization of partial discharges in switchgears ABB UniGear 500R and ABB UniGear 550 for 17,5 kV voltage level.

National Repository of Grey Literature : 12 records found   previous11 - 12  jump to record:
See also: similar author names
1 BERNARD, Markéta
6 Bernard, Martin
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