Abstract
The influence of the wavefront on impulse breakdown voltages for enclosed slightly-nonuniform-field gaps is reported. A 25 mm sphere-plane gap and a 20/50 mm diameter coaxial electrode system were used to obtain different fielt nonuniformity factors and different critical volumes. The wavefronts used in this work were 0.45, 1.35, 20, 50 and 90 ?s while the wavetail was around 450 , ?s for all cases. A 30 W UV lamp and 2 mCi caesium isotope were employed as irradiation sources. Experimental results show that strongly wavefront-dependent breakdown characteristics for small enclosed gaps reported by some other investigators were probably due to insufficient irradiation conditions. On the other hand, for the coaxial cylinder gap having a large critical volume, artificial irradiation was not necessary.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.