Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Switching arc diagnostics in DC contactor
Píška, Jakub ; Kloc, Petr (oponent) ; Valenta, Jiří (vedoucí práce)
The goal of this master's thesis was to carry out middle voltage DC contactor diagnostics with a focus on back-commutation and sticking, to propose and test alterations which would remove these negative phenomena. The arc voltage, fast camera and pressure measurements were used to determine these effects. Changes to arcrunners and pole plates of the magnetic circuit were used to limit them. The proposed alterations limited the time delay caused by back-commutation and thus shortened the arc transfer time.
Switching arc diagnostics in DC contactor
Píška, Jakub ; Kloc, Petr (oponent) ; Valenta, Jiří (vedoucí práce)
The goal of this master's thesis was to carry out middle voltage DC contactor diagnostics with a focus on back-commutation and sticking, to propose and test alterations which would remove these negative phenomena. The arc voltage, fast camera and pressure measurements were used to determine these effects. Changes to arcrunners and pole plates of the magnetic circuit were used to limit them. The proposed alterations limited the time delay caused by back-commutation and thus shortened the arc transfer time.

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