Open AccessInfluence of the filling gas mixture on the interruption capability of medium voltage load break switches
Author(s) -
Thomas Krampert,
Marvin Bendig,
Albert Moser,
Martin Schaak
Publication year - 2021
Publication title -
plasma physics and technology
Language(s) - English
Resource type - Journals
eISSN - 2336-2634
pISSN - 2336-2626
DOI - 10.14311/ppt.2021.2.19
Subject(s) - switchgear , nozzle , voltage , mixing (physics) , materials science , current (fluid) , high voltage , quenching (fluorescence) , electrical engineering , automotive engineering , environmental science , mechanical engineering , engineering , physics , quantum mechanics , fluorescence
In today’s medium voltage switchgear SF6 is commonly used as insulating and arc quenching medium. Because of its high potential impact on the environment a substitution with an environmentally friendly alternative is pursued. In this paper the inuence of the mixing ratio of carbon dioxide nitrogen mixtures as lling gas on the interruption capability in medium voltage load break switches is investigated. The interruption capability is regarded by means of the thermal interruption performance as well as the dielectric recovery of a model load break switch. The model load break switch allows an axial arc blowing with variable pressure and uses an exchangeable nozzle system.