Testing for low breakdown probability with special reference to liquid insulation
- 1 November 1977
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. 96 (6) , 1892-1900
- https://doi.org/10.1109/T-PAS.1977.32523
Abstract
Several techniques for the determination of withstand voltage of electrical insulation are investigated. As a basis for comparison, impulse tests are carried out on a uniform field gap in transformer oil. Measurements of breakdown time lags suggest that different breakdown initiating mechanisms may be simultaneously active, and contribute to the change found in the parameters of the breakdown probability curve between the low and high probability regions. Digital simulation of the dielectric test serves as a useful tool to rationalize the experimental procedure, as well as to identify the risk of breakdown corresponding to the measured withstand voltage.Keywords
This publication has 7 references indexed in Scilit:
- Dependence of the statistical breakdown time-lag of a liquid dielectric on electrode geometryJournal of Physics D: Applied Physics, 1971
- Testing for the Cumulative Flashover DistributionIEEE Transactions on Power Apparatus and Systems, 1970
- A statistical interpretation of the electrical breakdown of liquid dielectricsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1962
- Bestimmung einer für Isolieranordnungen unter Öl zweckmäßigen 50%-DurchschlagstoßspannungElectrical Engineering, 1958
- The interpretation of the results of impulse breakdown testsProceedings of the IEE Part C: Monographs, 1958
- Der Stoßdurchschlag in ÖlPublished by Springer Nature ,1955
- Calibration of uniform-field spark-gaps for high-voltage measurement at power frequenciesJournal of the Institution of Electrical Engineers - Part I: General, 1947