That would be some remarkable switch. Breaking 300 A in 10 nS with an inductive load of say 10 microhenries would generate a pulse emf of 300 x 10-5 / 10-8 volts = 300 kV. This will strike at least a 20 cm arc in air. Are you sure this is what you are trying to do?
That would be some remarkable switch. Breaking 300 A in 10 nS with an inductive load of say 10 microhenries would generate a pulse emf of 300 x 10-5 / 10-8 volts = 300 kV. This will strike at least a 20 cm arc in air. Are you sure this is what you are trying to do?
I am not looking to generate a long arc in air at the moment. However, I am interested in replacing arc switch (spark gap) in one of my experiments. I have been successfully working with the arc switch but want to replace it for avoiding complexities in my power supply for DBD plasma generation in air. Your calculation based on L*di/dt is correct with taking stray component into consideration. However, for a discharge between two 1 mm electrode and 4 mm apart in air, I think 78 micro joule energy will be dissipated in each pulse. I am not very sure whether that would generate a 20 cm long arc. Still my question is open to answer.
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