Abstract:
A model based on the area effect of breakdown has been developed that allows statistical evaluation of the withstand voltage of HV vacuum interrupters. The applicability ...Show MoreMetadata
Abstract:
A model based on the area effect of breakdown has been developed that allows statistical evaluation of the withstand voltage of HV vacuum interrupters. The applicability of the model to show the breakdown properties in a model vacuum interrupter of gaps between the electrodes and between the electrode and the shield is demonstrated experimentally. This model makes possible the evaluation of the breakdown voltage of a vacuum interrupter through the relation between the breakdown probability and the effective area at a given voltage level. Weibull statistics are utilized to calculate the effective anode area from the distributions of the weak point on the anode and of the electric field on both anode and cathode. The model account for the polarity effect of breakdown and influence of field enhancement of the breakdown. It is also demonstrated that the model can predict the coaxial gap configuration in which the highest withstand voltage can be obtained for the AC stress. The model was applied to designing a 72/84 kV rating model vacuum interrupter.<>
Published in: IEEE Transactions on Electrical Insulation ( Volume: 24, Issue: 1, February 1989)
DOI: 10.1109/14.19862
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Withstand Voltage ,
- Polarization Effects ,
- Weak Points ,
- Field Enhancement ,
- Field Strength ,
- Field Distribution ,
- Shape Parameter ,
- Electrode Materials ,
- Distribution Of Points ,
- Electrode Area ,
- Uniform Field ,
- Application Of Voltage ,
- Disk Electrode ,
- Voltage Polarity ,
- Circuit Breaker ,
- Gap Model ,
- Anode Surface ,
- Electrode Diameter ,
- Gap Spacing ,
- Edge Of Electrode ,
- Maximum Field Strength
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Withstand Voltage ,
- Polarization Effects ,
- Weak Points ,
- Field Enhancement ,
- Field Strength ,
- Field Distribution ,
- Shape Parameter ,
- Electrode Materials ,
- Distribution Of Points ,
- Electrode Area ,
- Uniform Field ,
- Application Of Voltage ,
- Disk Electrode ,
- Voltage Polarity ,
- Circuit Breaker ,
- Gap Model ,
- Anode Surface ,
- Electrode Diameter ,
- Gap Spacing ,
- Edge Of Electrode ,
- Maximum Field Strength
