Hi,
I'm feeling a little out of my depth here, but I'm hoping someone will be able to explain it all to me ....
I'm a metallurgist working with electrostatic separators. These are supplied with 0-40kV/ 15mA negative-polarity HV rectifiers, but I recently got all experimental and reversed the polarity to positive.
I found with the -ve rectifer I was max-ed out on the current limit of the rectifier before I achieved arc-over (corona discharge); ie. 26 kV at 15 mA. However with the +ve rectifier I obtained 35 kV at 7 mA before I saw corona discharge (Wire diameters/ all other machine parameters constant)
This is highly benefical to improving the separation of the conductor and non-conductor particles in the machine, but I honestly expected no change and now would like to understand the theory behind my observations.
With thanks, Suse
I'm feeling a little out of my depth here, but I'm hoping someone will be able to explain it all to me ....
I'm a metallurgist working with electrostatic separators. These are supplied with 0-40kV/ 15mA negative-polarity HV rectifiers, but I recently got all experimental and reversed the polarity to positive.
I found with the -ve rectifer I was max-ed out on the current limit of the rectifier before I achieved arc-over (corona discharge); ie. 26 kV at 15 mA. However with the +ve rectifier I obtained 35 kV at 7 mA before I saw corona discharge (Wire diameters/ all other machine parameters constant)
This is highly benefical to improving the separation of the conductor and non-conductor particles in the machine, but I honestly expected no change and now would like to understand the theory behind my observations.
With thanks, Suse